US3734339A - Gasoline dispensing nozzle - Google Patents

Gasoline dispensing nozzle Download PDF

Info

Publication number
US3734339A
US3734339A US00182410A US3734339DA US3734339A US 3734339 A US3734339 A US 3734339A US 00182410 A US00182410 A US 00182410A US 3734339D A US3734339D A US 3734339DA US 3734339 A US3734339 A US 3734339A
Authority
US
United States
Prior art keywords
shaft
arm
chamber
valve
nozzle
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US00182410A
Other languages
English (en)
Inventor
E Young
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sunoco Inc
Original Assignee
Sun Oil Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sun Oil Co filed Critical Sun Oil Co
Application granted granted Critical
Publication of US3734339A publication Critical patent/US3734339A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
    • B67D7/00—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes
    • B67D7/06—Details or accessories
    • B67D7/42—Filling nozzles
    • B67D7/44—Filling nozzles automatically closing
    • B67D7/46—Filling nozzles automatically closing when liquid in container to be filled reaches a predetermined level
    • B67D7/48—Filling nozzles automatically closing when liquid in container to be filled reaches a predetermined level by making use of air suction through an opening closed by the rising liquid

Definitions

  • a gasoline dispensing nozzle has a poppet-type shutoff valve which is operated by means of a rotary shaft sealed into the nozzle housing, the rotary shaft being [52] US. Cl ..222/56, 222/505 rotated through a mechanical linkage which is coupled [51] Int. Cl. ..B67d /08 between the Said shaft and a manual operating handle.
  • GASOLINE DISPENSING NOZZLE This invention relates to an improved gasoline dispensing nozzle.
  • the nozzles which are conventionally used at the present time (at service stations) for the dispensing of gasoline into the fuel tanks of automobiles involve several drawbacks, from the standpoints of convenience and ease of operation. These drawbacks or disadvantages become particularly acute when a self-service type of operation is being considered, one wherein the customer or motorist himself must operate the dispensing apparatus.
  • conventional nozzles utilize a pivoted lever which when operated causes the stem of the poppet-type shutoff valve to reciprocate or slide back and forth (that is, to move longitudinally) through a stuffing box or stuffing gland type of seal in the nozzle casing.
  • a sliding stem seal of this type involves considerable friction between the relatively moving parts. This frictional force, plus the force of the heavy (strong) valve return spring employed (which latter force must be overcome to open the valve), adds up to a rather substantial value, which means that a considerable pull (about pounds, by way of example, when taking into account the mechanical advantage offered by the lever) must be exerted on the lever in order to open the valve.
  • An object of this invention is to provide a novel gasoline dispensing nozzle.
  • Another object is to provide a gasoline dispensing nozzle which is smaller and lighter in weight than conventional nozzles, and which requires a much smaller manual force for actuation.
  • a further object is to provide a novel gasoline dispensing nozzle which does not utilize a sliding (reciprocating) seal for the stem of the nozzle shutoff valve.
  • a still further object is to provide a novel gasoline dispensing nozzle with a shutoff valve which is actuated by means of a rotary shaft sealed into the valve body.
  • Yet another object is to provide a novel type of automatic shutoff or self-tripping mechanism for gasoline dispensing nozzles.
  • a gasoline dispensing nozzle has therein a poppet-type main shutoff valve which is actuated by means of an arm fastened to a rotatable shaft which is sealed through the nozzle casing.
  • This shaft is coupled through a mechanical linkage to another shaft to which is secured an operating handle, for rotation of the latter shaft.
  • the mechanical linkage acts in a certain direction and manner when the operating handle is pulled, to cause opening of the nozzle shutoff valve.
  • a diaphragm which moves in a predetermined direction in response to a pressure differential developed upon filling of a container (tank) into which gasoline is being dispensed, is mechanically coupled to the aforementioned mechanical linkage in such a way that, when the diaphragm moves in said direction, the mechanical linkage is in effect rendered inactive, thereby to allow the shutoff valve to close.
  • FIG. 1 is a side elevation of a complete, fully assembled nozzle according to this invention
  • FIG. 2 is a longitudinal vertical sectional view showing the internal or liquid-flow parts of the nozzle of FIG. 1;
  • FIG. 3 is a partial view generally similar to FIG. 2, but on an enlarged scale;
  • FIG. 4 is a transverse vertical sectional view taken along line 44 of FIG. 3;
  • FIG. 5 is a vertical sectional view showing the external parts of the nozzle mechanism
  • FIG. 6 is a cross-section taken along line 66 of FIG.
  • FIG. 7 is a fragmentary cross-section taken along line 77 of FIG. 5;
  • FIG. 8 is a cross-sectional view taken along line 8-8 of FIG. 6, but omitting parts of the operating mechanism;
  • FIG. 9 is a fragmentary sectional view taken along line 9--9 of FIG. 8.
  • FIG. 10 is a partial sectional view similar to FIG. 2, but showing a single-product nozzle.
  • the invention will be described first as a so-called two-product nozzle, which is required for use with a gasoline dispensing apparatus of the type disclosed in my U.S. Pat. No. 2,880,908; in an apparatus of this type, any one of a number of blends of two gasoline components of different octane ratings may be selected for dispensing, and in addition, either component may be dispensed separately.
  • the invention is not limited to this type of nozzle, as will be explained more in detail hereinafter, and may be utilized as a single-product nozzle, for dispensing only a single product.
  • the liquid dispensing nozzle (gasoline dispensing nozzle) of this invention comprises a nozzle casing or housing 1 (which may be in the form of a casting, suitably machined) having an inlet portion 2, a valve chamber 3 communicating therewith, an outlet chamber 4, and a nozzle spout 5 threaded into the latter, as by means of a surrounding retaining nut 6 which threads into the housing 1 and bears against a lip at the inner end of spout 5.
  • the spout lip engages in turn a shoulder formed in housing 1.
  • a spring 7 is preferably mounted about the spout 5 in a conventional manner, to provide friction for holding the spout in the filling opening of a container (for example, in the fillpipe of an automobile gasoline tank), and also to assist in making electrical contact between the container and the nozzle housing.
  • the inlet portion 2 of housing I has a pair of vertically-spaced threaded inlet fittings 8 and 9 to which respective dispensing hoses can be attached.
  • the fittings 8 and 9 are located, respectively, at the outer ends of two vertically-spaced, parallel, cylindrical bores or conduits l0 and 11 provided in the nozzle housing 1.
  • conduits and 11 are intended to carry, separately, the two products (e.g., two gasoline components of different octane ratings), as supplied to the nozzle inlet through respective dispensing hoses, to the valve chamber 3; however, the two products are brought together, for mixing, in chamber 3.
  • the two products e.g., two gasoline components of different octane ratings
  • a spring-loaded check valve subassembly 12 which can also serve as an anti-drain valve, is mounted in passageway or conduit 10, at the inner end of this conduit.
  • the poppet 13 of subassembly 12 seats on a continuous valve seat 14 at the inner end of a web member or spider member 15 mounted in conduit 10, the outer cylindrical surface of member 15 (adjacent seat 14) being sealed into passageway 10 by means of an O-ring 16 fitting within a circumferential groove in member 15.
  • a coiled compression spring 17 bears against the central portion of web member 15, and the other end of this spring bears against a sleeve 18 pinned to one end of a rod whose other end is fastened to poppet l3; spring 17 thus biases the poppet 13 toward closed position.
  • the subassembly 12 functions as a check valve, permitting flow of liquid through passageway 10 only from right to left in FIG. 2-that is, only in the direction from the dispensing hose (at fitting 8) toward the valve chamber 3.
  • valve chamber 3 Assuming both poppets 13 and 13' are opened by the flow of the liquids being pumped respectively through conduits 10 and 11 from right to left, the two liquids will mix in valve chamber 3.
  • the poppet 19 of the main nozzle shutoff valve is mounted in valve chamber 3, as close as possible to poppets 13 and 13', it being necessary only to provide sufficient clearance for proper operation (movement) of the three poppets.
  • the residual volume of the space between poppets 13 and 13', on the one hand, and poppet 19, on the other hand, is thus made very small, on the order to 7 to 8 cc, for example.
  • Poppet 19 is frusto-conical in shape, and carries at its right-hand end (as seen in FIG. 2) an 0-ring 22 which seals against a frusto-conical valve seat 23 formed at the right-hand end of sleeve portion 21a of member 21; the remainder of sleeve portion 21a has a straight cylindrical inner wall.
  • a continuous circumferential groove is provided in sleeve portion 21a of member 21, at the right-hand end (in FIG. 2) of the straight cylindrical part of this sleeve, thereby forming (with the surrounding portion of housing 1, at bore 20) an annular chamber 24.
  • a plurality of small holes are drilled entirely through the cylindrical wall of sleeve 21a, in a direction at right angles to the longitudinal axis of this sleeve, into the annular chamber 24. Items 24 and 25 will be referred to further hereinafter.
  • the stem-supporting portion 21b of member 21 comprises four supporting spokes which extend from the radially-outer edge of sleeve portion 210 toward the longitudinal axis of this sleeve portion, and support at their common center an integral sleeve 26 which supports and provides a bearing for a valve stem 27 one end of which is secured to poppet 19; the stem 27 and the sleeve 26 are both centered on the center line of sleeve portion 21a (and also of poppet 19), and the sleeve 26 supports the stem 27 for reciprocating movement of the stem and poppet within housing 1.
  • the poppet 19 is illustrated in its closed or sealed position; movement of the poppet toward the right in this figure moves the O-ring 22 away from its seat 23 and results in opening of the main nozzle shutoff valve.
  • the poppet 19 is normally held seated on the valve seat 23 (i.e., the valve is normally closed) by means of a valve return spring 28 one end of which bears against the radially-outer ends of the spokes of stem support 21b and the opposite end of which bears against an abutment member 29 which is pinned to stem 27.
  • the spring 28 may be much weaker than the main valve springs used in conventional nozzles (the latter may exert a force of around thirty pounds, by way of example), since in the instant invention there is not present the high friction inherent in a sliding stem seal, through a stuffing gland.
  • the fastening of arm 30 to the inner end of shaft 31 may be effected by means of a tang on this shaft end which extends through a substantially rectangular opening in arm 30. It may be observed that rotation of shaft 31 in the counterclockwise direction in FIGS.
  • valve stem 27 and poppet 19 causes valve stem 27 and poppet 19 to be pushed toward the right by arm 30, opening the shutoff valve against the bias of spring 28, while rotation of shaft 31 in the clockwise direction (from its valve open position) allows the poppet 19 to move toward its closing or sealing position, under the urging of return spring 28.
  • the nozzle casing 1 has an integral wall 32 of approximately elliptical outer configuration, which extends outwardly at with respect to the main portion of easing 1, previously described. Near the inner end of this wall 32, the space within said wall is closed off by a partition which in effect forms a portion of the side wall of housing 1.
  • the partition just described separates what may be termed the internal parts of the nozzle mechanism (the various poppets, etc. previously described) from what may be termed the external parts of the nozzle mechanism (now to be described).
  • the shaft 31 extends outwardly (laterally) from the arm 31), through a bore 33 formed in wall 32, near one edge of the latter.
  • a sleeve bearing is provided for shaft 31 by means of a bronze bushing 34 which surrounds this shaft, within bore 33.
  • a seal is provided for valve shaft 31 by means of an O-ring 35 which surrounds this shaft and engages the wall of bore 33, near the outer end of wall 32; this arrangement seals the rotatable valve shaft through the wall of nozzle casing 1 and prevents leakage of gasoline out of this casing.
  • valve shaft 31 extends outwardly (sideways or laterally, in the normal upright position of the nozzle) beyond the O-ring 35 and beyond the outer end of wall 32 a suitable distance, and the outer end of this shaft (opposite to the inner end thereof, to which latter end arm 30 is fastened, as previously described) is provided with a tang 36.
  • a valve arm 37 which extends generally in a direction at right angles to the axis of shaft 31, has at one end thereof an integral hub 38 having a substantially rectangular opening which fits over tank 36; this fastens arm 37 to shaft 31 so that rotation of valve arm 37 will rotate the valve shaft 31.
  • Valve arm 37 is somewhat banjo-shaped, having a large substantially central opening 39, and at its other end (opposite to hub 38) this arm has an integral pin 40 which extends outwardly from the plane of the main portion of the arm.
  • a rocker arm 41 which is considerably thicker than valve arm 37, has at one end an elongated slot 42 which receives the outwardly-extending portion of pin 40, to provide a pin-and-slot pivotal connection between valve arm 37 and rocker arm 41.
  • Rocker amt 41 has a substantially central circular hole 43 for receiving a fulcrum pin 58 (to be later described), and has at its other end an elongated slot 44 which receives the inwardlyextending portion of an outstanding pin 45 which is integrally located at one end of a handle arm 46. This latter provides a pin-and-slot pivotal connection between rocker arm 41 and handle arm 46.
  • Handle arm 46 lies substantially parallel to valve arm 37 (and also to rocker arm 41). At the end of arm 46 opposite to pin 45, this arm has an integral hub 47 with a substantially rectangular opening which fits over a tang 48 provided on one end of a handle shaft 49.
  • the side wall 32 of easing 1 has an outwardly-facing annular shoulder 50 which supports the outer ends of the three legs of a three-legged phosphor bronze leaf spring 51.
  • Spring 51 is generally Y-shaped, having three legs (spaced at 120) extending radially outwardly from a central hub area. Spring 51 is normally bowed slightly outwardly at its center (i.e., upwardly in FIG. 6).
  • Diaphragm 53 is made from a suitable material (for example, Neoprene) which is substantially unaffected by gasoline. Diaphragm 53 is sealingly held in position against shoulder 52 by means of a diaphragm mounting or clamping plate 54 a portion of which overlies the outer edge of the diaphragm and which is secured to wall 32 by means of four bolts 55 (see FIG. 5), located beyond the edge of the diaphragm; the bolts 55 pass through holes in plate 54 and thread into tapped apertures in wall 32. Between the inner face of the diaphragm 53 and the inner partition which closes ofi the space within wall 32 there is thus formed an enclosed space 56 (actually, a volume) which may be termed a low pressure chamber.
  • a suitable material for example, Neoprene
  • a small hole 57 (diameter '16 inch) is drilled through the aforementioned partition into the annular chamber 24 (see FIG. 3, wherein the location of this hole is indicated in phantom), to provide communication between annular chamber 24 and low pressure chamber 56.
  • An outwardly-projecting fulcrum pin 58 which is tapered at its outer end and whose outer end is normally positioned within hole 43 in the rocker arm 41, is attached to diaphragm 53, for movement thereby, by means of a bolt 59 which passes sealingly through a central hole in diaphragm 53 and which threads into a tapped hole in fulcrum pin 58.
  • the head at the inner end of bolt 59 bears against the central hub area of spring 51.
  • the fulcrum pin 58 is mounted for sliding movement (in the direction of its length) in a rigid support (capable of resisting lateral forces) provided by a sleeve 60 integral with the fixed diaphragm mounting plate 54.
  • the hub 47 of handle arm 46 is fastened to handle shaft 49 so that rotation of shaft 49 will rotate hub 47 and handle arm 46.
  • the handle shaft 49 passes horizontally through, and is journaled for rotation in, a pair of spaced parallel ears 61 integrally formed on nozzle casing 1 and extending outwardly therefrom.
  • a collar 62 which is pinned to the shaft.
  • An operating handle or control member 63 is welded to or made integral with collar 62.
  • the operating handle or control member 63 is protected by a guard 64 secured at its respective opposite ends to a pair of aligned bosses 65 on the nozzle casing (by means of a pin 66) and to the ears 61 previously mentioned (by means of a threaded member 67). See FIG. 2.
  • a coiled compression spring 68 serves as a handle return spring, biasing handle 63 downwardly to the valve closed position illustrated in FIG. 2.
  • One end of spring 68 surrounds an integral boss 69 on the handle and bears against the handle, while the other end of this spring surrounds an integral boss 70 on casing 1 and bears against this casing.
  • handle arm 46 rotates counterclockwise about its fixed pivot at the center of shaft 49.
  • the pin 45 end of arm 46 then moves counterclockwise in an arcuate path, until at the fully open position the center of this pin arrives at point '73 (on the center line 72).
  • valve arm 37 indicates the position of this arm for the valve closed condition, while the center line 75 indicates the position of this same arm for the valve fully open" condition.
  • the pin 40 end of valve arm 37 is thus caused to move counterclockwise in an arcuate path, about its fixed pivot at the center of valve shaft 31.
  • the center of pin 40 arrives at point 76 (on the center line 75).
  • valve arm 37 rotates valve shaft 31 in the counterclockwise direction, which through the valve operating arm 30 moves poppet 19 to an open position.
  • handle 63 From the valve fully open position, or from any intermediate valve open position, the release of handle 63 allows this handle to move downwardly (as viewed in FIG. 2), under the urging of the return spring 68; this rotates handle shaft 49 in the clockwise direction. Then, handle arm 46 rotates clockwise (toward its closed center line position 71), rotating (through pin 45 and slot 44) rocker arm 41 clockwise about its pivot 58. This in turn (through slot 42 and pin 40) rotates valve arm 37 clockwise about its pivot (center of shaft 31), rotating the operating arm 31) clockwise and allowing poppet 19 to move to its closed position, under the urging of return spring 28.
  • valve return spring 28 biases the shutoff valve toward closed position, which means that (assuming arm 30 to be in contact with stem 27, as it must be if handle 63 is being held in the valve fully open position) a biasing force is present which tends to rotate valve shaft 31 clockwise, and also to rotate valve arm 37 clockwise from its fully open position.
  • the center of pin 45 is forcibly held at point 73.
  • valve arm 37 clockwise, from its center line position to its original center line position 74, rotates valve shaft 31 and internal operating arm 30 in the clockwise direction, allowing stem 27 and poppet 19 to move to the left (viewed in FIG. 3), so that the shutoff valve closes.
  • This movement of the stem and poppet toward the left is of course effected by the return spring 28.
  • a panshaped cover 77 having an outer configuration matching that of the wall 32, surrounds and covers the external parts of the nozzle mechanism.
  • the four bolts 55 previously referred to have elongated hexagonal heads, and tapped holes are formed longitudinally in-these heads; cover 77 is mounted in place (with its side wall in contact with the outer face of wall 32, at the outer edge of the latter) by means of four mounting screws (visible in FIG. 1) which extend through respective holes in cover 77 and into the tapped holes provided in the heads of the respective bolts 55.
  • a substantially triangular latching plate 78 is mounted pivotally at one of its corners on the inside face of cover 77, as by journaling on an inwardlyprojecting rivet 86 secured to the cover.
  • the plate 78 is capable of rotation in a plane parallel to the inside face of cover 77.
  • plate 78 has a tab 79 which extends into a transverse substantially rectangular groove 811 cut in the wall of a cylindrical button 81.
  • Button 81 is mounted for longitudinal sliding movement within a bore 32 provided in the side wall of cover '77, and has a longitudinal cavity 83 in which is positioned a return spring 84.
  • One end of spring 84 bears against a fixed interior abutment 85 integrally formed on the side wall of the cover, and the other end of this spring bears against the bottom of cavity 83.
  • Spring 84 biases button 81 outwardly, and also biases plate 78 toward the position illustrated in FIG. 8. It should be apparent that when button 81 is pushed inwardly with respect to the cover against the bias of spring 84, the latching plate '78 will be rotated clockwise (viewed in FIG. 8), about its fixed pivot 86.
  • the button 81 is so located (see FIG. 1) that it may be pushed inwardly with the thumb of the same hand that is being used to manually pull the operating handle 63.
  • the rivet 86 is so located that, even though it necessarily extends inwardly a little distance from latching plate 78, appropriate clearance is provided for the movement of handle arm 46, when the latter rotates to the valve fully open position (as at point 73, for example).
  • latching plate 78 has an integral pawl 87 which extends inwardly with respect to the cover, at right angles to the plane of the cover face and also to the plane of plate 78.
  • button 81 When button 81 is pushed inwardly to rotate latching plate 78, this plate rotates about its pivot 86 to cause pawl 87 to move in a direction which is downwardly and toward the right, as viewed in FIG. 5.
  • Rocker arm 41 has, on the end thereof adjacent slot 44 and in a location such as to be engaged by pawl 87 (when the latter moves downwardly and to the right, as viewed in FIG. 5, as a result of the rotation of plate 78 by the pushing of button 81), three integral friction surfaces 88, 89, and 90.
  • handle or control member 63 When handle or control member 63 is operated to open the shutoff valve, the pin 44 end (and also the friction surface end) of rocker arm 41 rotates counterclockwise, as previously described; when this takes place, button 81 may be pushed inwardly (with the thumb) to engage pawl 87 with any one of the three surfaces 88-90, thereby to latch the main shutoff valve open by latching rocker arm 41 in an open position.
  • valve spring 28 pressure of the valve spring 28 (exerted through items 30, 31, 37, 40, and 42 on rocker arm 41, and tending to rotate this latter arm clockwise about its pivot pin 58) creates sufficient friction between the pawl 87 and the friction surfaces 88-90 to prevent return spring 84 from moving pawl 87 so long as valve spring 28 is compressed. Button 81 then remains in its inward position. Also, the latching of rocker arm 41 in an open position (through items 44-49 and 62) prevents return spring 68 from moving handle 63 toward closed position under these conditions.
  • the previously-described structure thus comprises a latching means, for latching the main shutoff valve open.
  • Manual control of the shutoff valve may be reestablished whenever desired during dispensing, even though the latching means 87-90, etc. is in its operative position. To do this, the operator will momentarily manually operate handle 63 in the direction to open the shutoff valve wider. This causes rocker arm 41 to rotate counterclockwise about its central pivot at fulcrum pin 58, removing the frictional force between pawl 87 and the surfaces 88-90, and allowing pawl 87 (and also button 81) to return to its original position (away from surfaces 88-90) under the urging of return spring 84. The shutoff valve will then be held open by the manual force being exerted on handle 63.
  • a tube 91 has an open outer end 92 (FIG. 2) adjacent the outer end of the spout 5 (i.e., adjacent the nozzle outlet). Tube 91, from end 92, extends within the spout 5 toward the nozzle casing 1, and the inner end of this tube passes sealingly through the nozzle casing (see FIG. 7) into the low pressure or vacuum chamber 56, to terminate in this chamber. Thus, tube 91, and also annular chamber 24 (via hole 57), communicate with the chamber 56. As previously described, when operating handle 63 is moved upwardly (viewed in FIG. 2), poppet 19 is moved away from its seat 23.
  • Gasoline will now flow through the nozzle and in passing through the restricted area at holes 25 will create a subatmospheric pressure in the annular chamber 24, due to the venturi effect; this pressure reaches chamber 56 by way of hole 57. Due to the subatmospheric pressure created by the venturi, air will be drawn into vacuum chamber 56 through tube 91 and opening 92 at the end of the tube, so long as the liquid level in the gasoline tank (or in the tank fillpipe) remains below the opening 92. This air passes from chamber 56 through hole 57, chamber 24, and holes 25 to the gasoline stream, passing out with this stream to the nozzle spout 5.
  • FIG. 10 The nozzle construction of this invention is applicable to a so-called single-product nozzle, as illustrated in FIG. 10.
  • parts analogous to those previously described are denoted by the same reference numerals, but carrying prime designations.
  • the nozzle casing or housing I has an inlet portion 2 with a threaded inlet fitting 8' at the outer end of a single cylindrical bore or conduit 10'.
  • a spring-loaded check valve subassembly 12 is mounted in passageway or conduit 10', this subassembly having parts 13-18 the same as those previously described.
  • the inner end of conduit 10 leads to valve chamber 3, as before.
  • Internal parts the same as those previously described (refer also to FIGS. 2 and 3) are mounted in the valve chamber 3 and in the outlet chamber 4.
  • the handle 63 is straight, rather than being curved, and so eliminates any finger-pinching effect.
  • the nozzle of this invention is light in weight, and requires a smaller hand span for operation of the handle 63. Also, since the area of valve shaft 31 which is exposed to O- ring seal 35 is constant, there is no possibility for dirt to be drawn into the seal to damage the same, in sharp contrast to the situation with sliding or reciprocating valve stem seals commonly used heretofore.
  • a nozzle casing having an elongated chamber with a valve port therein; a valve stem movable longitudinally of said chamber and having secured thereto a valve poppet movable into and out of engagement with said port; a control member shaft, a rockable control member mounted on said shaft outside said chamber, a second shaft extending into said chamber, the axis of said second shaft being spaced from the axis of the first-mentioned shaft; a plurality of arms pivotally interconnected to constitute a mechanical linkage which is connected at one end thereof to said first-mentioned shaft and at its other end to said second shaft, and means connected to said second shaft for moving said stem in response to the rocking motion of said member, transmitted through said first-mentioned shaft and said linkage to said second shaft.
  • Nozzle according to claim 1 wherein the longitudinal axes of said first-mentioned and second shafts extend parallel to each other and at substantially 90 to the longitudinal axis of said stem.
  • each of the pivotal interconnections is a pin and slot connection.
  • a nozzle casing having an elongated chamber with a valve port therein; a valve stem movable longitudinally of said chamber and having secured thereto a valve poppet movable into and out of engagement with said port; a control member shaft, a control member mounted on said shaft outside said chamber, a first arm secured at one end thereof to said shaft, a second arm mounted for pivotal movement intermediate its ends and pivotally secured at one end thereof to the opposite end of said first arm, a third arm pivotally secured at one end thereof to the opposite end of said second arm, a second shaft extending into said chamber, the axis of said second shaft being spaced from the axis of the first-mentioned shaft; said third arm being secured at its opposite end to said second shaft, and means connected to said second shaft for moving said stem in response to the motion of said member, transmitted through said first-mentioned shaft and said arms to said second shaft.
  • Nozzle according to claim 4 wherein the pivotal connection between the first and second arms is a pin and slot connection, and wherein the pivotal connection between the second and third arms is a pin and slot connection.
  • a nozzle casing having an elongated chamber with a valve port therein; a valve stem movable longitudinally of said chamber and having secured thereto a valve poppet movable into and out of engagement with said port; a control member shaft, a control member mounted on said shaft outside said chamber, a second shaft extending into said chamber, a plurality of arms pivotally interconnected to constitute a mechanical linkage which is connected at one end thereof to the first-mentioned shaft and at its other end to said second shaft, means connected to said second shaft for moving said stem in response to the motion of said member, transmitted through said linkage, and manually-operable means for latching the arms of said mechanical linkage in a particular spatial relationship.
  • a nozzle casing having an elongated chamber with a valve port therein; a valve stem movable longitudinally of said chamber and having secured thereto a valve poppet movable into and out of engagement with said port; a control member shaft, a control member mounted on said shaft outside said chamber, a first arm secured at one end thereof to said shaft, a second arm mounted for pivotal movement intermediate its ends and pivotally secured at one end thereof to the opposite end of said first arm, a third arm pivotally secured at one end thereof to the opposite end of said second arm, a second shaft extending into said chamber, said third arm being secured at its opposite end to said second shaft, means connected to said second shaft for moving said stem in response to the motion of said member, transmitted through said arms, and manually-operable means for latching said second arm in a particular angular position.
  • the latching means includes a plurality of friction surfaces formed on said second arm, and a pawl adapted to be manually moved into engagement with a selected one of said surfaces.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mechanically-Actuated Valves (AREA)
  • Loading And Unloading Of Fuel Tanks Or Ships (AREA)
US00182410A 1971-09-21 1971-09-21 Gasoline dispensing nozzle Expired - Lifetime US3734339A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US18241071A 1971-09-21 1971-09-21

Publications (1)

Publication Number Publication Date
US3734339A true US3734339A (en) 1973-05-22

Family

ID=22668352

Family Applications (1)

Application Number Title Priority Date Filing Date
US00182410A Expired - Lifetime US3734339A (en) 1971-09-21 1971-09-21 Gasoline dispensing nozzle

Country Status (9)

Country Link
US (1) US3734339A (fr)
JP (1) JPS4838520A (fr)
BE (1) BE789013A (fr)
CA (1) CA962241A (fr)
DE (1) DE2245409A1 (fr)
FR (1) FR2154141A5 (fr)
IT (1) IT956876B (fr)
NL (1) NL7211693A (fr)
SE (1) SE398224B (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD293462S (en) 1985-10-18 1987-12-29 Emco Wheaton, Inc. Fuel dispensing nozzle
USD355704S (en) 1992-06-09 1995-02-21 Saber Equipment Corp. Fuel nozzle
US5421382A (en) * 1989-11-01 1995-06-06 Dover Corporation Vapor recovery nozzles and sub-assemblies therefor
US6003550A (en) * 1998-07-10 1999-12-21 Saarem; Myrl J. Combination shut off valve and excessive flow valve

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2528697A (en) * 1948-04-08 1950-11-07 Gilbert & Barker Mfg Co Hose nozzle of the automatic shutoff type
US2884815A (en) * 1956-02-23 1959-05-05 Globe Ind Inc Rotary speed changer

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2528697A (en) * 1948-04-08 1950-11-07 Gilbert & Barker Mfg Co Hose nozzle of the automatic shutoff type
US2884815A (en) * 1956-02-23 1959-05-05 Globe Ind Inc Rotary speed changer

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD293462S (en) 1985-10-18 1987-12-29 Emco Wheaton, Inc. Fuel dispensing nozzle
US5421382A (en) * 1989-11-01 1995-06-06 Dover Corporation Vapor recovery nozzles and sub-assemblies therefor
US5655576A (en) * 1989-11-01 1997-08-12 Dover Corporation Vapor recovery nozzles and sub-assemblies therefor
USD355704S (en) 1992-06-09 1995-02-21 Saber Equipment Corp. Fuel nozzle
US6003550A (en) * 1998-07-10 1999-12-21 Saarem; Myrl J. Combination shut off valve and excessive flow valve

Also Published As

Publication number Publication date
SE398224B (sv) 1977-12-12
CA962241A (en) 1975-02-04
FR2154141A5 (fr) 1973-05-04
JPS4838520A (fr) 1973-06-06
DE2245409A1 (de) 1973-03-29
BE789013A (fr) 1973-03-20
NL7211693A (fr) 1973-03-23
IT956876B (it) 1973-10-10

Similar Documents

Publication Publication Date Title
US3982571A (en) Vapor recovery nozzle with mechanical flow interlock
US3899009A (en) Fuel nozzle vapor return adaptor
US4497350A (en) Vapor recovery system having automatic shut-off mechanism
US3710831A (en) Automatic trip fill nozzle
US4199012A (en) Liquid dispensing nozzle having vapor recovery arrangement
US4658987A (en) No pressure shut off for automatic fuel nozzle valve
US3055405A (en) Automatic tank-filling systems
US2445130A (en) Liquid dispenser
US2646817A (en) Automatic shutoff for tank filling
US2363123A (en) Liquid shutoff valve
US4027708A (en) Dispensing nozzle control system
US2818889A (en) Safety cutoff filler nozzle
US4131140A (en) Automatic fluid dispensing apparatus
US2528697A (en) Hose nozzle of the automatic shutoff type
GB1422669A (en) Apparatus for transferring fluid
US4559982A (en) Pressure actuated poppet valve for fuel dispensing nozzle
US1550738A (en) Filler spout
US3996977A (en) Automatic dispensing nozzle adapted for vapor recovery
US3946773A (en) Automatic dispensing nozzle adapted for vapor recovery
US4984612A (en) Automatic shut-off liquid delivery nozzle
US3822716A (en) Beverage tapping device
US2847145A (en) Dispensing mechanism
US2110941A (en) Tube for transferring fluids and valve mechanism therefor
US3823752A (en) Liquid dispensing nozzle of the automatic shut-off type
US2041735A (en) Combination inflow controlling and fluid discharge means