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GB1352843A - Improvements in or relating to pumps - Google Patents

Improvements in or relating to pumps

Info

Publication number
GB1352843A
GB1352843A GB1352843DA GB1352843A GB 1352843 A GB1352843 A GB 1352843A GB 1352843D A GB1352843D A GB 1352843DA GB 1352843 A GB1352843 A GB 1352843A
Authority
GB
United Kingdom
Prior art keywords
valves
valve
reciprocated
sections
pulsating output
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
Application number
Inventor
Norman Barrie Jones
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.)
Carl Freudenberg KG
Original Assignee
Carl Freudenberg KG
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 Carl Freudenberg KG filed Critical Carl Freudenberg KG
Publication of GB1352843A publication Critical patent/GB1352843A/en
Expired legal-status Critical Current

Links

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
    • F04B43/00—Machines, pumps, or pumping installations having flexible working members
    • F04B43/08—Machines, pumps, or pumping installations having flexible working members having tubular flexible members
    • 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
    • F04B3/00—Machines or pumps with pistons coacting within one cylinder, e.g. multi-stage
    • 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
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/10—Valves; Arrangement of valves
    • F04B53/1037—Flap valves
    • F04B53/1047—Flap valves the valve being formed by one or more flexible elements
    • F04B53/1057—Flap valves the valve being formed by one or more flexible elements the valve being a tube, e.g. normally closed at one end
    • 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
    • F04B9/02—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical
    • F04B9/04—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical the means being cams, eccentrics or pin-and-slot mechanisms
    • F04B9/042—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical the means being cams, eccentrics or pin-and-slot mechanisms the means being cams

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Reciprocating Pumps (AREA)

Abstract

1352843 Reciprocating pumps N B JONES 13 May 1971 [27 Feb 1970] 9584/70 Heading F1A A pump, e.g. for blood, comprises a pipe 11 with two check valves 12, 13, valve 13 being reciprocated relative to valve 12, as shown, to provide a pulsating output, or both valves being reciprocated towards and away from each other to provide a non-pulsating output, Fig. 4 (not shown). The reciprocating pipe sections 15 containing the valves are either connected by bellows 17, 18 to the fixed pipe sections, or telescope relative to the fixed sections with interposed O-rings or rolling diaphragms. The check valves comprise segmented conical or spherical diaphragms, e.g. of silicone rubber. The valves are designed to buckle and open against the normal direction of flow when the back pressure is excessive. Valve 13 is reciprocated by an electric motor-driven cam 25 acting through lever 26 and slider 27 on rod 28. Alternatively, actuation may be pneumatic, hydraulic or electric.
GB1352843D 1970-02-27 1970-02-27 Improvements in or relating to pumps Expired GB1352843A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB958470 1970-02-27

Publications (1)

Publication Number Publication Date
GB1352843A true GB1352843A (en) 1974-05-15

Family

ID=9874829

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1352843D Expired GB1352843A (en) 1970-02-27 1970-02-27 Improvements in or relating to pumps

Country Status (1)

Country Link
GB (1) GB1352843A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995014171A1 (en) * 1993-11-18 1995-05-26 Material Transportation Technologies Pty. Ltd. A flowable material handling device
FR2784586A1 (en) * 1998-10-17 2000-04-21 Braun Melsungen Ag Medical fluid transfer system for e.g. blood or drugs transfusion/infusion comprising axial pump with crushing region and cutoff valves, gives precise transfer with little energy use
EP3156084A1 (en) * 2013-03-14 2017-04-19 Stryker Corporation Medical/surgical lavage unit with a pump that includes a bellows chamber and a supplemental chamber
CN106678086A (en) * 2015-11-09 2017-05-17 吴新保 Double-plug series connection application method of reciprocating pump and high-efficiency liquid pump applying method
JP2018051345A (en) * 2017-12-01 2018-04-05 ストライカー・コーポレイション Medical/surgical lavage unit with pump that includes bellows chamber and supplemental chamber
US11419973B2 (en) 2013-03-14 2022-08-23 Stryker Corporation Medical/surgical lavage unit with a pump that includes a bellows chamber and a supplemental chamber

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995014171A1 (en) * 1993-11-18 1995-05-26 Material Transportation Technologies Pty. Ltd. A flowable material handling device
FR2784586A1 (en) * 1998-10-17 2000-04-21 Braun Melsungen Ag Medical fluid transfer system for e.g. blood or drugs transfusion/infusion comprising axial pump with crushing region and cutoff valves, gives precise transfer with little energy use
GB2344858A (en) * 1998-10-17 2000-06-21 Braun Melsungen Ag Medical liquid hose pump transfer system
ES2156092A1 (en) * 1998-10-17 2001-06-01 Braun Melsungen Ag Medical liquid hose pump transfer system
EP3156084A1 (en) * 2013-03-14 2017-04-19 Stryker Corporation Medical/surgical lavage unit with a pump that includes a bellows chamber and a supplemental chamber
AU2019201486B2 (en) * 2013-03-14 2020-09-10 Stryker Corporation Medical/surgical lavage unit with a handpiece having a barrel that can be pivoted relative to the handgrip
US11419973B2 (en) 2013-03-14 2022-08-23 Stryker Corporation Medical/surgical lavage unit with a pump that includes a bellows chamber and a supplemental chamber
CN106678086A (en) * 2015-11-09 2017-05-17 吴新保 Double-plug series connection application method of reciprocating pump and high-efficiency liquid pump applying method
JP2018051345A (en) * 2017-12-01 2018-04-05 ストライカー・コーポレイション Medical/surgical lavage unit with pump that includes bellows chamber and supplemental chamber

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees