EP1323924A3 - Partially preloaded pump diaphragms - Google Patents

Partially preloaded pump diaphragms Download PDF

Info

Publication number
EP1323924A3
EP1323924A3 EP02258415A EP02258415A EP1323924A3 EP 1323924 A3 EP1323924 A3 EP 1323924A3 EP 02258415 A EP02258415 A EP 02258415A EP 02258415 A EP02258415 A EP 02258415A EP 1323924 A3 EP1323924 A3 EP 1323924A3
Authority
EP
European Patent Office
Prior art keywords
plane
attachment portion
distance
diaphragm
partially preloaded
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Withdrawn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
EP02258415A
Other languages
German (de)
French (fr)
Other versions
EP1323924A2 (en
Inventor
Stephen D. Able
Thomas R. Headley
Gerald M. Distel
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.)
Ingersoll Rand Co
Original Assignee
Ingersoll Rand 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 Ingersoll Rand Co filed Critical Ingersoll Rand Co
Publication of EP1323924A2 publication Critical patent/EP1323924A2/en
Publication of EP1323924A3 publication Critical patent/EP1323924A3/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Withdrawn legal-status Critical Current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

Landscapes

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

Abstract

A partially preloaded diaphragm (10) having an outer attachment portion (12) defining a first plane (P) and disposed about an axis (21) substantially perpendicular to the first plane. An inner attachment portion (16) is disposed substantially perpendicular to the axis of the outer attachment portion and defines a second plane (C). The inner attachment portion is movable away from the outer attachment portion into a fully extended pumping position defining a third plane (F). The first plane and the second plane are spaced at a distance to define a preload distance (PC) when the diaphragm is at rest, and the first and third plane are spaced to define a pump stroke distance (PF) when the diaphragm is fully extended. The preload distance is from about 25 percent to about 85 percent of the pump stroke distance.
EP02258415A 2001-12-19 2002-12-05 Partially preloaded pump diaphragms Withdrawn EP1323924A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/027,422 US20030110939A1 (en) 2001-12-19 2001-12-19 Partially preloaded pump diaphragms
US27422 2001-12-19

Publications (2)

Publication Number Publication Date
EP1323924A2 EP1323924A2 (en) 2003-07-02
EP1323924A3 true EP1323924A3 (en) 2003-11-26

Family

ID=21837647

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02258415A Withdrawn EP1323924A3 (en) 2001-12-19 2002-12-05 Partially preloaded pump diaphragms

Country Status (3)

Country Link
US (1) US20030110939A1 (en)
EP (1) EP1323924A3 (en)
CA (1) CA2413376A1 (en)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6901960B2 (en) * 2002-09-06 2005-06-07 Ingersoll-Rand Company Double diaphragm pump including spool valve air motor
US6865981B2 (en) * 2003-03-11 2005-03-15 Ingersoll-Rand Company Method of producing a pump
US6883417B2 (en) * 2003-03-19 2005-04-26 Ingersoll-Rand Company Connecting configuration for a diaphragm in a diaphragm pump
CA2954433C (en) 2007-11-21 2022-08-09 Smith & Nephew Plc Wound dressing
GB0723855D0 (en) 2007-12-06 2008-01-16 Smith & Nephew Apparatus and method for wound volume measurement
CH702436A1 (en) * 2009-12-23 2011-06-30 Jean-Denis Rochat DOSING PUMP FOR MEDICAL USE.
CH702437A1 (en) * 2009-12-23 2011-06-30 Jean-Denis Rochat Volumetric pump diaphragm alternative medical use.
GB201015656D0 (en) 2010-09-20 2010-10-27 Smith & Nephew Pressure control apparatus
US8596648B2 (en) * 2010-10-22 2013-12-03 Oshkosh Corporation Pump for vehicle suspension system
US9084845B2 (en) 2011-11-02 2015-07-21 Smith & Nephew Plc Reduced pressure therapy apparatuses and methods of using same
CN104507513B (en) 2012-03-20 2017-04-12 史密夫及内修公开有限公司 Controlling operation of a reduced pressure therapy system based on dynamic duty cycle threshold determination
US9427505B2 (en) 2012-05-15 2016-08-30 Smith & Nephew Plc Negative pressure wound therapy apparatus
US9360004B2 (en) * 2012-11-15 2016-06-07 Shenzhen Mindray Bio-Medical Electronics Co., Ltd. Progressive pump force regulation
CN107249524A (en) 2014-12-22 2017-10-13 史密夫及内修公开有限公司 Negative pressure wound therapy apparatuses and method
US9890024B2 (en) 2016-04-08 2018-02-13 Oshkosh Corporation Leveling system for lift device
JP6895493B2 (en) * 2019-08-27 2021-06-30 株式会社タクミナ Diaphragm pump
DE102020125567A1 (en) * 2020-09-30 2022-03-31 Ulman Dichtungstechnik Gmbh Composite diaphragm for diaphragm pumps

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3813500A1 (en) * 1988-04-22 1989-11-02 Alkor Gmbh Diaphragm pump or diaphragm compressor
DE9306501U1 (en) * 1993-04-29 1993-09-02 ASF, Gesellschaft für elektrotechnische Geräte mbH, 82178 Puchheim Diaphragm for a diaphragm pump for pumping a flammable fluid
DE9403103U1 (en) * 1994-02-24 1994-04-14 ASF, Gesellschaft für elektrotechnische Geräte mbH, 82178 Puchheim Diaphragm for a diaphragm pump for pumping a flammable fluid
EP0916846A2 (en) * 1997-11-18 1999-05-19 Westinghouse Air Brake Company Wear ring for a diaphragm and pistonlike support

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3011758A (en) 1958-05-01 1961-12-05 Hills Mccanna Co Valve diaphragms

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3813500A1 (en) * 1988-04-22 1989-11-02 Alkor Gmbh Diaphragm pump or diaphragm compressor
DE9306501U1 (en) * 1993-04-29 1993-09-02 ASF, Gesellschaft für elektrotechnische Geräte mbH, 82178 Puchheim Diaphragm for a diaphragm pump for pumping a flammable fluid
DE9403103U1 (en) * 1994-02-24 1994-04-14 ASF, Gesellschaft für elektrotechnische Geräte mbH, 82178 Puchheim Diaphragm for a diaphragm pump for pumping a flammable fluid
EP0916846A2 (en) * 1997-11-18 1999-05-19 Westinghouse Air Brake Company Wear ring for a diaphragm and pistonlike support

Also Published As

Publication number Publication date
CA2413376A1 (en) 2003-06-19
US20030110939A1 (en) 2003-06-19
EP1323924A2 (en) 2003-07-02

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