US3256835A - Through-running suction and pressure piston pump - Google Patents

Through-running suction and pressure piston pump Download PDF

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Publication number
US3256835A
US3256835A US338926A US33892664A US3256835A US 3256835 A US3256835 A US 3256835A US 338926 A US338926 A US 338926A US 33892664 A US33892664 A US 33892664A US 3256835 A US3256835 A US 3256835A
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US
United States
Prior art keywords
piston
valve
trailing part
pump
handle
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
US338926A
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English (en)
Inventor
Kraus Johann
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Individual
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Individual
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Filing date
Publication date
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Publication of US3256835A publication Critical patent/US3256835A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B7/00—Piston machines or pumps characterised by having positively-driven valving
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/22—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by means of valves
    • F04B49/24—Bypassing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B7/00—Piston machines or pumps characterised by having positively-driven valving
    • F04B7/0073—Piston machines or pumps characterised by having positively-driven valving the member being of the lost-motion type, e.g. friction-actuated members, or having means for pushing it against or pulling it from its seat
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
    • F04B9/14—Pumps characterised by muscle-power operation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
    • F04F10/00—Siphons

Definitions

  • FIG. 3 is a view similar to FIG. 1, showing the pump 1n its initial non-operating position and FIG. 4 illustrates a modied constructional detail, partly in section, of
  • the pump comprises a cylinder 1 with a seal or terminal portion 2 and a circular cover 3, provided with a pair of air outlets 3a, screwed into the cylinder.
  • the sealing cover provided with a cone is mounted on the cylinder.
  • An outlet part 4 is screwed on the terminal portion 2 and the-re is further provided a threaded cap 5 for securing the outlet tube 6.
  • a tubular piston 7 In the interior of the cylinder there is displaceably mounted a tubular piston 7 which is guided by the cover 3. Piston 7 is provided with a piston 8 having pressure and suction lips 8, 8b and a sealing cone 8c. The outer end of the tubular piston 7 terminates in a piston handle 7a. A threaded cap 9 is mounted on the end of the A handle 7a. The threaded cap 9 secures an inlet tube 11 while the guide part of the inlet valve is provided with a circular recess in which the gripping parts of the trailing part extend and securely. hold the inlet valve in an open outflow position.
  • the blocking V parts of the Valve are designed as pointed cones, so that a complete whirl-free passage of the fluid is assured.
  • FIG. 1 is a view in elevation and partly in cross-section of the pump with the pump handle in fully extracted position
  • FIG. 2 is a View similar tol that of FIG. 1 showing the pump in an intermediate operating position
  • an inlet nipple 10 in a conical seat in the handle 7a.
  • the interior of the handle 7a is provided with an inlet valve 12 having a seat 12a, th-ree passage openings 12b and a cone 12e which cooperates with the inlet nipple 10.
  • the inlet valve 12 extends with its rearward portion into a guide 12d which is provided with a circular recess 12C.
  • a hollow trailing part 13, for an outiiow valve 14, is mounted in the tubular piston 7, interiorly of the cylinder 1.
  • the trailing part 13 with its three carriers 13b serves as a stop part for the inlet valve 12.
  • the trailing part 13 is provided with three longitudinal recesses 13a resulting in a -spring action.
  • the trailing part 13 s provided with carriers 13b, extending the height of the recesses 13a.
  • the carriers 13b can protrude interchangeably into the recesses 7b or 7c of the cylinder tube.
  • the trailing part is further provided with a limiting stop 13C for the inner piston tube end 7d, slideable on said trail-ing part.
  • the hollow trailing part 13 contains three longitudinal recesses 13d, adjacent to the outlet valve, which also continue to the conically-shaped part 13C, and a stop 13g, which bears upon thecylinder part 2 and secures the outlet valve 14 in its open position (FIGS. l and 3).
  • This part is provided with a threaded end and with yet another sealing cone and carries the sealing valve 14, which with its coneshaped part 14a cooperates with the cone 2a of the cylin ⁇ der closing part 2.
  • the securing of the piston 8 on the piston tube 7 may Ibe effected by screwing a clamp ⁇ support 15 on its inner thread, whereby both parts of piston 8 are provided with corresponding sealing cones. A convenient exchangeability of the pistons is assured thereby.
  • the manu-facture of pistons is more economical, particularly because expensive materials must be employed for certain purposes.
  • the outlet tube 6 When filling ffro-m higher disposed into lower disposed vessels, the outlet tube 6 is introduced into the vessel t-o be filled, while the piston pump is in the initial position shown in FIG. 3. In this position no vacuum flow can as yet take place from the filling vessel.
  • the Valve 14 When the handle 7a is pulled ⁇ out orf the pump, the Valve 14 is closed at the iirst stop as shown in FIG. 2. During the further pulling out of the piston handle to the end position shown in FIG. 3 a vacuum is produced.
  • the pumping cycle is as -followsz
  • the pumip is held at chest height, with the discharge tube directed upwards.
  • the inlet valve 12l functions automatically in cooperation with the discharge valve 14.
  • the piston handle is moved inwards, the outlet valv-e 14 is opened, while the air in the cylinder is pressed outwards.
  • the inlet valve 12 is closed partly by its own weight and partly by the slight pressure of air i.e. air overpressure.
  • the outlet valve 14 closes, so that air can no longer reach the cylinder.
  • a vacuum is lformed in the cylinder when the piston is pulled back. Due -to this vacuum the inlet valve 12 is lifted, so that the fluid may enter the vacuum space in the cylinder.
  • the fluid in the cylinder is pressed outwards and flows through the outlet valve 14, while the outlet side is held downward in the container to be filled.
  • the outlet end is closed by pulling back the piston handle to ⁇ one of the closed positions. This operation is repeated until the required containers are filled. In this case the container from which the liquid is drawn off is lower than that to be illed.
  • the bottom outlet is closed by pulling out the piston handle to the first stop as shown in FIG. 2.
  • the pump is lifted up, so that the outlow tube is pointed upwardly and the 4 fluid ows back into the filling vessel.
  • the pump as well as the tube are emptied and can now be laid aside in a rest position until the next use.
  • the handle of the piston tube 7a In pumping from vessels into higher position vessels where therefore there is no head or fall, the handle of the piston tube 7a must be Iactuated along the entire stroke length for a while until the vessel is filled as desired.
  • a through-running suction and pressure pump comprising a cylindrical housing having upper and lower end portions, a piston tube displaceable axially of said housing and having its upper portion formed as a handle, an inlet valve displaceable in said handle and serving as a drop valve, a hol-low trailing part .displaceable axially in said piston and provided with a conical abutment, an outlet valve carried by said trailing part, said piston tube having a pair of recesses, said trailing part being provided with a pair of carriers extendable into said recesses, said piston tube having an end portion slideable on said trailing part and bearing on said conical abutment, thereby pressing the outlet valve into open position, said trailing part being further provided with a stop element abutting against said housings lower portion, whereby the outlet valve is held in its open position, said'outlet valve having a guide portion provided with a circular recess, said carriers extending into said recesses While the pump is in lstarting linitial position to maintain the inlet

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Reciprocating Pumps (AREA)
  • Details Of Reciprocating Pumps (AREA)
US338926A 1963-01-28 1964-01-20 Through-running suction and pressure piston pump Expired - Lifetime US3256835A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEK48819A DE1256545B (de) 1963-01-28 1963-01-28 Saug- und Druck-Durchlauf-Kolbenpumpe

Publications (1)

Publication Number Publication Date
US3256835A true US3256835A (en) 1966-06-21

Family

ID=7225046

Family Applications (1)

Application Number Title Priority Date Filing Date
US338926A Expired - Lifetime US3256835A (en) 1963-01-28 1964-01-20 Through-running suction and pressure piston pump

Country Status (6)

Country Link
US (1) US3256835A (de)
CH (1) CH410636A (de)
DE (1) DE1256545B (de)
GB (1) GB1049693A (de)
LU (1) LU45051A1 (de)
NL (1) NL6400635A (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5238372A (en) * 1992-12-29 1993-08-24 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Cooled spool piston compressor

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1374980A (en) * 1919-12-16 1921-04-19 Charles P Bossert Dispensing-valve
US1479978A (en) * 1916-02-17 1924-01-08 Gabriel A Bobrick Liquid dispenser
FR577325A (fr) * 1923-04-05 1924-09-03 Pompe à main aspirante et foulante
US1884750A (en) * 1931-05-21 1932-10-25 U S Sanitary Specialties Corp Dispensing valve
AT203371B (de) * 1957-04-18 1959-05-11 Hans Kraus Saug- und Druck-Durchlaufkolbenpumpe, vorzugsweise für Handbetätigung

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1479978A (en) * 1916-02-17 1924-01-08 Gabriel A Bobrick Liquid dispenser
US1374980A (en) * 1919-12-16 1921-04-19 Charles P Bossert Dispensing-valve
FR577325A (fr) * 1923-04-05 1924-09-03 Pompe à main aspirante et foulante
US1884750A (en) * 1931-05-21 1932-10-25 U S Sanitary Specialties Corp Dispensing valve
AT203371B (de) * 1957-04-18 1959-05-11 Hans Kraus Saug- und Druck-Durchlaufkolbenpumpe, vorzugsweise für Handbetätigung

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5238372A (en) * 1992-12-29 1993-08-24 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Cooled spool piston compressor

Also Published As

Publication number Publication date
NL6400635A (de) 1964-07-29
LU45051A1 (de) 1964-02-18
CH410636A (de) 1966-03-31
GB1049693A (en) 1966-11-30
DE1256545B (de) 1967-12-14

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