EP0809028A3 - Neutral shaped pump diaphragm - Google Patents

Neutral shaped pump diaphragm Download PDF

Info

Publication number
EP0809028A3
EP0809028A3 EP97303541A EP97303541A EP0809028A3 EP 0809028 A3 EP0809028 A3 EP 0809028A3 EP 97303541 A EP97303541 A EP 97303541A EP 97303541 A EP97303541 A EP 97303541A EP 0809028 A3 EP0809028 A3 EP 0809028A3
Authority
EP
European Patent Office
Prior art keywords
diaphragm
neutral
pump diaphragm
shaped pump
pump
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.)
Withdrawn
Application number
EP97303541A
Other languages
German (de)
French (fr)
Other versions
EP0809028A2 (en
Inventor
Sheila S. Mckee
Ronald M. Markusson
Kathleen M. Barnes
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.)
Graco Inc
Original Assignee
Graco Inc
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 Graco Inc filed Critical Graco Inc
Publication of EP0809028A2 publication Critical patent/EP0809028A2/en
Publication of EP0809028A3 publication Critical patent/EP0809028A3/en
Withdrawn legal-status Critical Current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
    • F04B43/0009—Special features
    • F04B43/0054—Special features particularities of the 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
    • F04B45/00—Pumps or pumping installations having flexible working members and specially adapted for elastic fluids
    • F04B45/04—Pumps or pumping installations having flexible working members and specially adapted for elastic fluids having plate-like flexible members, e.g. diaphragms
    • F04B45/041—Pumps or pumping installations having flexible working members and specially adapted for elastic fluids having plate-like flexible members, e.g. diaphragms double acting plate-like flexible pumping member
    • 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
    • F04B45/00—Pumps or pumping installations having flexible working members and specially adapted for elastic fluids
    • F04B45/04—Pumps or pumping installations having flexible working members and specially adapted for elastic fluids having plate-like flexible members, e.g. diaphragms
    • F04B45/043—Pumps or pumping installations having flexible working members and specially adapted for elastic fluids having plate-like flexible members, e.g. diaphragms two or more plate-like pumping flexible members in parallel
    • 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
    • F04B53/22—Arrangements for enabling ready assembly or disassembly
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2210/00—Working fluid
    • F05B2210/10—Kind or type
    • F05B2210/12—Kind or type gaseous, i.e. compressible
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2260/00—Function
    • F05B2260/30—Retaining components in desired mutual position
    • F05B2260/301—Retaining bolts or nuts

Abstract

In the invention, the diaphragm for an air-operated double diaphragm pump is molded in an "S" shape which corresponds to the shape of the diaphragm in the center (of the pump stroke) or relaxed position. By allowing the pump to be assembled in this center or relaxed position, the diaphragm need not be flexed in order to perform the pump assembly.
EP97303541A 1996-05-23 1997-05-23 Neutral shaped pump diaphragm Withdrawn EP0809028A3 (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US18623 1993-02-17
US1862396P 1996-05-23 1996-05-23
US85913397A 1997-05-20 1997-05-20
US859133 1997-05-20
2001-06-11

Publications (2)

Publication Number Publication Date
EP0809028A2 EP0809028A2 (en) 1997-11-26
EP0809028A3 true EP0809028A3 (en) 1999-06-02

Family

ID=26691311

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97303541A Withdrawn EP0809028A3 (en) 1996-05-23 1997-05-23 Neutral shaped pump diaphragm

Country Status (3)

Country Link
EP (1) EP0809028A3 (en)
JP (1) JPH11159461A (en)
KR (1) KR970075365A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9427505B2 (en) 2012-05-15 2016-08-30 Smith & Nephew Plc Negative pressure wound therapy apparatus

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6276907B1 (en) 1999-08-12 2001-08-21 Wagner Spray Tech Corporation Hydraulically driven diaphragm pump
DE102005010291A1 (en) * 2005-03-02 2006-09-07 Ami-Agrolinz Melamine International Gmbh Diaphragm pump and a method of manufacturing a pump diaphragm
HUE043133T2 (en) 2007-11-21 2019-07-29 Smith & Nephew Wound dressing
GB201015656D0 (en) 2010-09-20 2010-10-27 Smith & Nephew Pressure control apparatus
US9084845B2 (en) 2011-11-02 2015-07-21 Smith & Nephew Plc Reduced pressure therapy apparatuses and methods of using same
JP5531038B2 (en) * 2012-02-16 2014-06-25 多田プラスチック工業株式会社 Diaphragm
US9901664B2 (en) 2012-03-20 2018-02-27 Smith & Nephew Plc Controlling operation of a reduced pressure therapy system based on dynamic duty cycle threshold determination
JP6991067B2 (en) 2014-12-22 2022-01-12 スミス アンド ネフュー ピーエルシー Negative pressure closure therapy equipment and methods

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2906174A1 (en) * 1978-09-27 1980-04-10 Franz Borgias Dost Hand-operated membrane type air pump - has membrane with radial elasticity to give large movement between ends of stroke
EP0280070A2 (en) * 1987-02-26 1988-08-31 Depa Gesellschaft Für Verfahrenstechnik Mbh Double diaphragm pump
US4867653A (en) * 1988-01-20 1989-09-19 Grace Inc. Diaphragm pump
DE29505354U1 (en) * 1995-03-16 1995-06-22 Abel Gmbh & Co Diaphragm piston pump

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2906174A1 (en) * 1978-09-27 1980-04-10 Franz Borgias Dost Hand-operated membrane type air pump - has membrane with radial elasticity to give large movement between ends of stroke
EP0280070A2 (en) * 1987-02-26 1988-08-31 Depa Gesellschaft Für Verfahrenstechnik Mbh Double diaphragm pump
US4867653A (en) * 1988-01-20 1989-09-19 Grace Inc. Diaphragm pump
DE29505354U1 (en) * 1995-03-16 1995-06-22 Abel Gmbh & Co Diaphragm piston pump

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9427505B2 (en) 2012-05-15 2016-08-30 Smith & Nephew Plc Negative pressure wound therapy apparatus
US9545465B2 (en) 2012-05-15 2017-01-17 Smith & Newphew Plc Negative pressure wound therapy apparatus

Also Published As

Publication number Publication date
EP0809028A2 (en) 1997-11-26
JPH11159461A (en) 1999-06-15
KR970075365A (en) 1997-12-10

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