US3306503A - Discharging fluid from a container - Google Patents

Discharging fluid from a container Download PDF

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Publication number
US3306503A
US3306503A US516518A US51651865A US3306503A US 3306503 A US3306503 A US 3306503A US 516518 A US516518 A US 516518A US 51651865 A US51651865 A US 51651865A US 3306503 A US3306503 A US 3306503A
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United States
Prior art keywords
bag
fluid
container
compartment
flexible tube
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
US516518A
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English (en)
Inventor
Kenneth G Page
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.)
Bristol Siddeley Engines Ltd
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Bristol Siddeley Engines Ltd
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Publication date
Application filed by Bristol Siddeley Engines Ltd filed Critical Bristol Siddeley Engines Ltd
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Publication of US3306503A publication Critical patent/US3306503A/en
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    • 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
    • B67D1/00—Apparatus or devices for dispensing beverages on draught
    • B67D1/04—Apparatus utilising compressed air or other gas acting directly or indirectly on beverages in storage containers
    • B67D1/045—Apparatus utilising compressed air or other gas acting directly or indirectly on beverages in storage containers using elastic bags and pistons actuated by air or other gas
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02K—JET-PROPULSION PLANTS
    • F02K9/00—Rocket-engine plants, i.e. plants carrying both fuel and oxidant therefor; Control thereof
    • F02K9/42—Rocket-engine plants, i.e. plants carrying both fuel and oxidant therefor; Control thereof using liquid or gaseous propellants
    • F02K9/60—Constructional parts; Details not otherwise provided for
    • F02K9/605—Reservoirs

Definitions

  • the invention relates to the discharge of fluid (hereinafter referred to as the first fluid) from a container by introducing other fluid (hereinafter referred to as the second fluid) into a collapsible bag positioned inside the container, thereby to expand the bag, the bag on expanding occupying an increasing volume of the container and thereby displacing and expelling the first fluid through at least one outlet leading from the container.
  • first fluid fluid
  • second fluid other fluid
  • a difficulty that has arisen in connection with this method of discharging the first fluid from the container is that Where the bag is arranged inside the container prior to filling the latter with the first fluid, the outer surface of the bag will be in contact with the first fluid not only during expansion of the bag to discharge the first fluid from the container but also during the whole of the time the first fluid is stored in the container. That arrangement is unsatisfactory where the first fluid is incompatible with the material of the bag, because the first fluid could cause the bag to become porous or otherwise damaged. Alternatively the bag material could adversely affect the stability of, or contaminate, the first fluid.
  • Damage to the bag by the first fluid during the period of storage could result in leakage into the container of the second fluid when the latter has been introduced into the bag to expand it, thereby affecting the extent of the expansion of the bag and hence the efficiency of discharge of the first fluid from the container and also resulting in contamination of the first fluid by the second fluid.
  • An object of the invention is to provide a container including a collapsible bag which is capable of being expanded to expel the first fluid from the container but in which the collapsed :bag is not permitted to come into contact with the first fluid until the operation of expanding the bag to expel said first fluid from the container has commenced.
  • a container for a first fluid includes a compartment of which the interior is isolated by a closure member from the interior of the remainder of the container, until the first fluid is to be discharged from the container, the compartment initially containing a collapsed bag arranged to be expanded by introducing a second fluid into the bag, the closure member being arranged to be opened by the action of introducing the second fluid to the bag and to permit at least a portion of the collapsed bag to enter the container and there to be expanded to displace the first fluid through an outlet ,of the container.
  • the bag when collapsed closely surrounds a flexible tube extending from one end of the bag and through which the second fluid is introduced into the bag, said one end of the bag and the inlet end of the flexible tube being anchored in the compartment and the tube and the collapsed bag initially being rolled up into a spiral and housed in the compartment, whereby the introduction of the second fluid to the compartment and into the flexible tube will open the closure member of the compartment and cause the flexible tube and the collapsed bag to be unrolled from the compartment into the remainder of the container and to continue to unroll until the flexible tube is substantially straight, the second fluid then ice entering the bag through the outlet end of the tube thereby causing the bag to expand away from the flexible tube.
  • a restrictor may be provided in the outlet end of the flexible tube. By providing the restrictor, the tube will be held substantially straight, after it has been unrolled, by the flow of said second fluid into the bag.
  • the closure member may be a removable bung or cap, arranged to be pushed outwardly of the compartment into the remainder of the container as a result of the introduction of the second fluid to the bag, thereby to open the compartment to the interior of the remainder of the container and so to permit at least a portion of the bag to enter the container as the bag is unfolded or unrolled.
  • the bung or cap may be sealed around its periphery by a pressure rupturable seal capable of breaking as a result of the introduction of the second fluid.
  • the compartment may also contain a piston to which the second fluid is to be applied and initially closed valve means to prevent the second fluid from entering the bag, the piston being arranged to be pushed by the pressure of the second fluid to rupture the seal an on continued movement to push the bung or cap into the interior of the remainder of the container and also to open said valve means thereby to admit the second fluid to the bag.
  • the first fluid may be any liquid or gas but the container in accordance with this invention is especially intended to be used for hydrogen peroxide which is to be supplied to a combustion chamber of a rocket engine.
  • the second fluid may be any liquid or gas, e.g., water or compressed air.
  • FIGURE 1 is an axial section through the first container including a compartment containing a bag by which the first fluid in the container can be displaced and discharged therefrom by expansion of the bag by the introduction thereto of the second fluid, the bag being shown in the position in the compartment which it occupies prior to commencement of the discharging operation;
  • FIGURE 2 is a section on the line 11-41 in FIG- URE 1;
  • FIGURES 3, 5 and 6 are respectively axial sections similar to FIGURE 1 but showing subsequent positions of the bag during the discharge of fluid from the container;
  • FIGURE 4 is a section on the line IVIV in FIG- URE 3;
  • FIGURE 7 is a section through the second container including a compartment containing a bag by which the fluid in the container is to be discharged, the bag being shown in the position in the compartment which it occupies prior to commencement of the discharging operation, and
  • FIGURE 8 is an axial section of the compartment and adjacent part of the third container.
  • the container 1 for the first fluid e.g. hydrogen peroxide
  • the container 1 for the first fluid has at its left-hand end, as viewed in FIGURES 1, 3, 5 and 6, a compartment 2,
  • the compartment 2 contains a bag of collapsible material of low permeability which, as will be seen from FIGURE 1, is initially, i.e. before discharge of the first fluid commences, in a collapsed state and rolled up into a spiral and enclosed in the compartment 2 by a bung 4 or cap, fitted into the casing 8.
  • the first fluid in the container 1 does not come into contact with the bag 5 during the whole time that it is stored in the container 1.
  • the bag 5 is attached around its mouth at its left-hand end to the end wall 7 of the compartment 2 which is opposite the bung 4.
  • the bag 5 is completely closed except that a flexible pipe 6, positioned within and extending substantially the full length of the bag, extends from the end of the bag adjacent the wall 7 and passes therethrough, where it communicates with the pipe 3.
  • the bag 5 is collapsed and is pleated to form a flattened sleeve closely surrounding the pipe 6 which is also flattened (see FIGURE 4).
  • the pleated bag 5 and the flattened pipe 6 are then rolled up into the aforesaid spiral and placed in the compartment 2, which is then closed by the bung 4 (see FIG- URES 1 and 2).
  • the container 1 can then be filled with the first fluid through an orifice 9 and can safely be stored without fear of it having any damaging effect on the bag 5.
  • the second fluid e.g. water
  • the pipe 3 in the direction of the arrow X shown at the left-hand end of FIGURES 3, 5 and 6.
  • the water after entering the casing 8 will apply pressure to the rear wall 7 of the compartment 2, thereby causing it to slide a predetermined distance within the casing 8 and to push the bung 4 therefrom into the interior of the container 1, as shown in FIGURES 3 to 6, thereby opening the interior of the compartment 2 to the interior of the remainder of the container 1, so as to permit the bag 5 and the tube 6 to be unrolled, as now explained.
  • Water will also enter the mouth of the pipe 6, thereby causing the pipe to expand and to straighten progressively, as indicated in FIGURE 3, until it reaches the position shown in FIGURE 5.
  • water will flow along the whole length of the pipe 6 until it reaches the far end thereof, where it will flow into the bag 5 as shown in FIGURE 5.
  • the bag 5 will then begin to expand radially outwardly, as indicated in FIG- URE 5, and continued introduction of water through the pipe 6 will cause the bag 5 to expand, as shown in FIG- URE 6, until it substantially fills the interior of the container 1.
  • a restrictor 6a (see FIGURES 5 and 6) is provided at the outlet end, i.e.
  • the tube is more likely to remain straight after it has been unrolled and while the second fluid is passed through it to enter and expand the bag.
  • a perforated and dimpled liner 10 is provided within the container 1. As the first fluid is displaced by the bag 5 as the latter expands, the first fluid will flow through holes in the liner 10 and will pass between the liner and the wall of the container 1 to the orifice 9.
  • the second container 11 has a compartment 12 formed at its left-hand end and closed to the interior of the remainder of the container 11 by .a piston 13, mounted for sliding movement on a guide rod 14 extending through the container 11.
  • the compartment 12 initially contains a collapsed bag 15 of substantially impermeable material, which is folded in the manner of a cylindrical bellows or concertina anchored at one end to the compartment 12 and at the other end to the piston 13.
  • a second fluid e.g.
  • the bung 4 or piston 13 may be sealed around its periphery to the adjacent wall of the compartment 2 or 12 by a pressure-rupturab-le seal, for example an aluminium alloy seal, considerable pressure by the second fluid on the bung or piston being necessary to rupture the seal. It is desirable that this extreme pressure should not suddenly be applied to the bag, as the latter could be torn from its anchorage in the compartment.
  • FIGURE 8 shows how the tearing of the bag can be avoided in a compartment similar to that shown in FIGURE 7, the same reference numerals being used for like parts appearing in the two figures.
  • the container 11 has a compartment 12 formed therein, the end of the compartment adjacent the interior of the container 11 being closed initially by a piston 13 with the bag 15 attached at one end to the piston 13, as in FIGURE 7.
  • This attachment is made by a clamping ring 28 held against the inside surface of the head of the piston 13 by screws 29.
  • the piston 13 is slidable on the guide rod 14 and is held in its initial position, as illustrated, by an aluminium alloy seal 20 between the rod 14 and the bore of the piston 13 and by a further similar seal 21 between the periphery of the piston 13 and the compartment 11.
  • the other end of the bag 15 is attached to the head of another piston 17 also slidable on the guide rod 14 behind (i.e.
  • the attachment of the bag 15 to the piston 17 is made by a clamping ring 18, secured to the head of the piston 17 by means of bolts 19.
  • the piston 17 has a central tubular hub 22, which like the piston 17 itself is open to the second fluid, e.g. water, supplied to the interior of the compartment 12 through an inlet 23. Water initially entering the hub 22 passes into the adjacent end of the guide rod 14, which has an axial passage 26 communicating with radial passages 24 therein.
  • the passages 24 are initially closed by valve means constituted by a tubular hub 25 of the piston 13 but subsequently communicate with the interior of the bag 15, when the hub 25 opens the passages 24, as later described.
  • the container 11 has a perforated and dimpled liner 30 similar to the liner 10 in the container of FIGURES 1-6 and provided for the same purpose.
  • the second fluid acts first on the piston 17 and pushes it into contact with the piston 13.
  • the resulting axial force on the piston 13 breaks the seals 20 and 21 and so the piston 13 will travel along the guide rod 14, taking with it the adjacent end of the bag 15.
  • the passages 24 will be uncovered by the hub 25 and the second fluid will enter the interior of the bag 17.
  • FIGURE 8 An arrangement similar to that shown in FIGURE 8 and having a second piston, such as 17, engageable with the piston forming the compartment 2 may be applied to the container shown in FIGURES 1 to 6.
  • a container for a first fluid a compartment communicatible with the interior of said container, a closure member for said compartment whereby the interior of the compartment is isolated from the interior of the rernainder of the container, until the first fluid is to be discharged from the container, a collapsed bag initially housed completely within the compartment, a flexible tube positioned within said bag and extending from one end thereof, means for introducing a second fluid into said bag through said flexible tube, said one end of said bag and the inlet end of said flexible tube being anchored in said compartment and said flexible tube and said collapsed bag initially being rolled up into a spiral and housed in said compartment, whereby the introduction of said second fluid to said compartment and into said flexible tube will open said closure member of said compartment and cause said flexible tube and said collapsed bag to be unrolled from said compartment into the remainder of said container and to continue to unroll until said flexible tube is substantially straight, said second fluid then entering said balg through the outlet end of said tube, thereby causing said bag to expand away from said flexible tube.
  • a container as claimed in claim 1 in which a restrictor is provided in the outlet end of said flexible tube.
  • a container for a first fluid a compartment communicatible with the interior of said container, a closure member for said compartment whereby the interior of the compartment is isolated from the interior of the re mainder of the container until the first fluid is to be discharged from the container, a collapsed bag initially housed completely within the compartment and means for introducing a second fluid into the bag, thereby to open the closure member and cause at least a portion of the bag to leave the compartment and to enter said container and there be expanded to displace said first fluid through an outlet of said container, said closure member being a removable bung sealed around its periphery by a pressure-rupturable seal and said compartment also including a piston to which said second fluid is to be applied and initially-closed valve means to prevent said,
  • said piston being arranged to be pushed by the pressure of said second fluid to rupture said seal and on continued movement to push said bung into the interior of the remainder of said container and also to open said valve means thereby to admit said second fluid to said bag.
  • ROBERT B REEVES, Primary Examiner.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Reciprocating Pumps (AREA)
  • Bag Frames (AREA)
  • Packages (AREA)
US516518A 1964-12-31 1965-12-27 Discharging fluid from a container Expired - Lifetime US3306503A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB52957/64A GB1059090A (en) 1964-12-31 1964-12-31 Improvements in or relating to discharging fluid from a container

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US3306503A true US3306503A (en) 1967-02-28

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FR (1) FR1462101A (fr)
GB (1) GB1059090A (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3760805A (en) * 1971-01-13 1973-09-25 Alza Corp Osmotic dispenser with collapsible supply container
US4798313A (en) * 1987-07-27 1989-01-17 Farley Brent L Elastomeric bladder for dispensing ice cream
DE102011100560B3 (de) * 2011-05-05 2012-03-15 Leibinger Smb Technik Gmbh Vorrichtung zum Befüllen eines Behältnisses mit einer zum Verzehr bestimmten Flüssigkeit
WO2012149918A1 (fr) * 2011-05-05 2012-11-08 Leibinger Smb Technik Gmbh Procédé pour vider un récipient rempli de liquide
DE102012021775A1 (de) * 2012-11-06 2014-05-08 Leibinger Gmbh Vorrichtung zum Befüllen oder zum Entleeren eines Behältnisses
WO2016079248A3 (fr) * 2014-11-19 2016-07-14 Carlsberg Breweries A/S Ensemble récipient de boisson pour contenir une boisson
CN110171794A (zh) * 2019-05-10 2019-08-27 塔罗斯控股有限公司 一种液体容器

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3900499A1 (de) * 1988-12-07 1990-07-05 Holzer Walter Einrichtung zur verhinderung des freien austritts von brennstoffdaempfen aus brennstoffbehaeltern
DE10144951A1 (de) * 2001-09-12 2003-04-17 Hartmut Schiefer Sprühdose

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US280830A (en) * 1883-07-10 Jameson
US2671577A (en) * 1951-03-09 1954-03-09 Peerless Tube Company Collapsible tube with easily rupturable neck diaphragm
US3072296A (en) * 1958-12-31 1963-01-08 Technicon Instr Pumping apparatus
US3083875A (en) * 1959-01-12 1963-04-02 Welty Frank Apparatus for packaging and dispensing beverages or the like

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US280830A (en) * 1883-07-10 Jameson
US2671577A (en) * 1951-03-09 1954-03-09 Peerless Tube Company Collapsible tube with easily rupturable neck diaphragm
US3072296A (en) * 1958-12-31 1963-01-08 Technicon Instr Pumping apparatus
US3083875A (en) * 1959-01-12 1963-04-02 Welty Frank Apparatus for packaging and dispensing beverages or the like

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3760805A (en) * 1971-01-13 1973-09-25 Alza Corp Osmotic dispenser with collapsible supply container
US4798313A (en) * 1987-07-27 1989-01-17 Farley Brent L Elastomeric bladder for dispensing ice cream
DE102011100560B3 (de) * 2011-05-05 2012-03-15 Leibinger Smb Technik Gmbh Vorrichtung zum Befüllen eines Behältnisses mit einer zum Verzehr bestimmten Flüssigkeit
WO2012149918A1 (fr) * 2011-05-05 2012-11-08 Leibinger Smb Technik Gmbh Procédé pour vider un récipient rempli de liquide
WO2012149917A1 (fr) * 2011-05-05 2012-11-08 Leibinger Smb Technik Gmbh Procédé pour remplir un récipient avec un liquide
US20140047797A1 (en) * 2011-05-05 2014-02-20 Leibinger Gmbh Method for filling a container with a liquid
US10427927B2 (en) * 2011-05-05 2019-10-01 Leibinger Gmbh Method for filling a container with a liquid
DE102012021775A1 (de) * 2012-11-06 2014-05-08 Leibinger Gmbh Vorrichtung zum Befüllen oder zum Entleeren eines Behältnisses
DE102012021775B4 (de) 2012-11-06 2014-08-21 Leibinger Gmbh Vorrichtung zum Befüllen oder zum Entleeren eines Behältnisses
US9415988B2 (en) 2012-11-06 2016-08-16 Leibinger Gmbh Device for filling or emptying a container
WO2016079248A3 (fr) * 2014-11-19 2016-07-14 Carlsberg Breweries A/S Ensemble récipient de boisson pour contenir une boisson
CN110171794A (zh) * 2019-05-10 2019-08-27 塔罗斯控股有限公司 一种液体容器

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FR1462101A (fr) 1966-12-09
GB1059090A (en) 1967-02-15

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