CA2079365A1 - Check valve for fluid bladders - Google Patents

Check valve for fluid bladders

Info

Publication number
CA2079365A1
CA2079365A1 CA002079365A CA2079365A CA2079365A1 CA 2079365 A1 CA2079365 A1 CA 2079365A1 CA 002079365 A CA002079365 A CA 002079365A CA 2079365 A CA2079365 A CA 2079365A CA 2079365 A1 CA2079365 A1 CA 2079365A1
Authority
CA
Canada
Prior art keywords
films
bladder
check valve
seal
area
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.)
Granted
Application number
CA002079365A
Other languages
French (fr)
Other versions
CA2079365C (en
Inventor
Robert W. Pekar
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.)
Dielectrics Industries Inc
Original Assignee
Robert W. Pekar
Dielectrics Industries
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 Robert W. Pekar, Dielectrics Industries filed Critical Robert W. Pekar
Publication of CA2079365A1 publication Critical patent/CA2079365A1/en
Application granted granted Critical
Publication of CA2079365C publication Critical patent/CA2079365C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K15/00—Check valves
    • F16K15/20—Check valves specially designed for inflatable bodies, e.g. tyres
    • F16K15/202—Check valves specially designed for inflatable bodies, e.g. tyres and with flexible valve member
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K15/00—Check valves
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C27/00—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas
    • A47C27/08—Fluid mattresses or cushions
    • A47C27/081—Fluid mattresses or cushions of pneumatic type
    • A47C27/084—Fluid mattresses or cushions of pneumatic type self inflating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/48—Wearing apparel
    • B29L2031/4842—Outerwear
    • B29L2031/4864—Gloves
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/3584—Inflatable article [e.g., tire filling chuck and/or stem]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/7722—Line condition change responsive valves
    • Y10T137/7837—Direct response valves [i.e., check valve type]
    • Y10T137/7879—Resilient material valve
    • Y10T137/788—Having expansible port
    • Y10T137/7882—Having exit lip

Abstract

A check valve provides a one-way fluid passage from without to within a fluid bladder formed by a pair of plastic sheets sealed together about their periphery. The check valve is formed by a pair of superimposed films of thermo-plastic material, generally equal in length, thermally bonded together at predetermined areas to define the fluid passage throughout the length of the valve. Each of the films, adjacent one end thereof, is sealed to one of the outer sheets where the valve enters the bladder by a seal line of wedge shape. Each of the films has a high-gloss, cohesive inner surface and a matte, non-cohesive, outer surface. At least one of the films includes, on its inner surface, a release material disposed at a location which corresponds to the area at the inlet end of the fluid passage through the peripheral seal of the bladder to prevent the fusing together of the films at that area of the seal. The seal in that area has a V-shape with apex pointing in a direction opposite the one-way fluid flow. The terminal ends of the superimposed films extend in surface-to-surface relation-into the bladder to provide a "duck-bill" type check valve.
CA 2079365 1991-09-30 1992-09-29 Check valve for fluid bladders Expired - Lifetime CA2079365C (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US76742591A 1991-09-30 1991-09-30
US767,425 1991-09-30
US783,398 1991-10-28
US07/783,398 US5144708A (en) 1991-02-26 1991-10-28 Check valve for fluid bladders

Publications (2)

Publication Number Publication Date
CA2079365A1 true CA2079365A1 (en) 1993-03-31
CA2079365C CA2079365C (en) 2002-07-30

Family

ID=27117907

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2079365 Expired - Lifetime CA2079365C (en) 1991-09-30 1992-09-29 Check valve for fluid bladders

Country Status (7)

Country Link
US (1) US5144708A (en)
EP (1) EP0535904B1 (en)
JP (1) JP3276999B2 (en)
KR (1) KR100243442B1 (en)
AU (1) AU658904B2 (en)
CA (1) CA2079365C (en)
DE (1) DE69213377T2 (en)

Families Citing this family (112)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5378223A (en) * 1992-10-23 1995-01-03 Royce Medical Company Orthopedic support pad and method for providing semi-permanent relief zones
US5617650A (en) * 1992-10-23 1997-04-08 Grim; Tracy E. Vacuum formed conformable shoe
US5372575A (en) * 1993-02-16 1994-12-13 Safeguard Industrial Corporation Therapeutic forearm appliance having pressure pad containing parallel chambers
US5308163A (en) * 1993-03-16 1994-05-03 Kabushiki Kaisha Nichiwa Check valve for fluid containers and a method of manufacturing the same
IT1266420B1 (en) * 1993-05-04 1996-12-30 Nordica Spa PROCEDURE FOR OBTAINING PUMPING DEVICES, ESPECIALLY FOR SPORTS SHOES
US5372487A (en) * 1993-06-10 1994-12-13 Dielectrics Industries Inlet check valve for pump mechanism
US5406661A (en) * 1993-09-15 1995-04-18 Reebok International Ltd. Preloaded fluid bladder with integral pump
US5771606A (en) 1994-10-14 1998-06-30 Reebok International Ltd. Support and cushioning system for an article of footwear
KR970001351B1 (en) * 1994-03-23 1997-02-05 주식회사 신아스포츠 Equipment for turning round bail arm of a reel for fishing
US5908519A (en) * 1994-12-12 1999-06-01 The Hyper Corporation Hollow core in-line skate wheel having contour conforming polyurethane wall
US5558441A (en) * 1994-12-12 1996-09-24 Morrison; Kenneth V. Receptacle
US5564143A (en) * 1995-03-09 1996-10-15 Dielectrics Industries Check valve for fluid bladders
EP0747616A1 (en) * 1995-06-08 1996-12-11 W.L. GORE & ASSOCIATES GmbH Valve for an inflatable cushion
WO1996041556A1 (en) * 1995-06-09 1996-12-27 Herman Miller, Inc. Office chair and adjustable lumbar support therefor
US5991949A (en) * 1995-08-15 1999-11-30 Foamex L.P. Hoseless air bed
USD386558S (en) * 1996-06-07 1997-11-18 Dielectrics Industries Hand pump for an inflatable structure
WO2000023735A1 (en) * 1998-10-21 2000-04-27 Dielectrics Industries, Inc. Flow control valve
DE19930155A1 (en) * 1999-06-30 2001-01-04 Takata Europ Gmbh Check valve for airbag of motor vehicle's occupant restraint system has connecting hose between first and second chamber of airbag and in which is located fabric inlay dividing connecting hose into flow passage and pressure chamber
US6460560B1 (en) * 2000-01-28 2002-10-08 Halkey-Roberts Corporation Low profile inflation valve
US10327880B2 (en) 2000-04-14 2019-06-25 Attenuex Technologies, Inc. Attenuation device for use in an anatomical structure
US6988983B2 (en) * 2000-04-14 2006-01-24 Solace Therapeutics, Inc. Implantable self-inflating attenuation device
US6682473B1 (en) * 2000-04-14 2004-01-27 Solace Therapeutics, Inc. Devices and methods for attenuation of pressure waves in the body
US7374532B2 (en) 2000-04-14 2008-05-20 Attenuex Technologies, Inc. High vapor pressure attenuation device
CA2408536C (en) 2000-05-17 2008-09-30 Robert B. Chaffee Inflatable device with recessed fluid controller and modified adjustment device
US7025576B2 (en) 2001-03-30 2006-04-11 Chaffee Robert B Pump with axial conduit
US6446658B1 (en) 2000-08-21 2002-09-10 Bic Corporation Bleed member and bleed valve assembly
AU783829B2 (en) 2000-09-28 2005-12-08 Formway Furniture Limited A reclinable chair
AUPR054400A0 (en) 2000-09-29 2000-10-26 Formway Furniture Limited A castor
US6378552B1 (en) 2000-11-10 2002-04-30 Dielectrics Industries, Inc. Dual speed flow control valve
US6694556B2 (en) 2001-02-15 2004-02-24 Hill-Rom Services, Inc. Self-inflating mattress
WO2002092424A1 (en) 2001-05-11 2002-11-21 Johnson Outdoors, Inc. Adjustable seating system
US20020194747A1 (en) 2001-06-21 2002-12-26 Passke Joel L. Footwear with bladder filter
KR20030000243A (en) * 2001-06-22 2003-01-06 이 석 민 Method for manufacturing animal food and plastic bag type air-tight fermentation container suitable for the same
US20090234457A1 (en) * 2001-06-29 2009-09-17 The Regents Of The University Of California Systems, devices and methods for treatment of intervertebral disorders
AU2002318159A1 (en) * 2001-06-29 2003-03-03 The Regents Of The University Of California Biodegradable/bioactive nucleus pulposus implant and method for treating degenerated intervertebral discs
US6591456B2 (en) 2001-07-09 2003-07-15 Bic Corporation Cushioning device
JP4540336B2 (en) 2001-07-10 2010-09-08 ロバート・ビー・チャフィー Inflatable support device that can be formed into specific shapes
JP2004534593A (en) 2001-07-13 2004-11-18 ゲイマー　インダストリーズ　インコーポレイテッド Supporting device having pressure adjusting portion and method of use
US20030028157A1 (en) * 2001-07-13 2003-02-06 Jusiak Joel T. Support device with integrated pressure adjustment device and method of use
US6540627B1 (en) 2002-01-02 2003-04-01 Jose E. Leal Adjustable power bat
AU2003230261B2 (en) 2002-05-03 2008-02-14 Robert B. Chaffee Self-sealing valve with electromechanical device for actuating the valve
US8677652B2 (en) 2002-07-02 2014-03-25 Reebok International Ltd. Shoe having an inflatable bladder
US6785985B2 (en) 2002-07-02 2004-09-07 Reebok International Ltd. Shoe having an inflatable bladder
US7278445B2 (en) 2002-07-02 2007-10-09 Reebok International Ltd. Shoe having an inflatable bladder
US20040045557A1 (en) * 2002-09-05 2004-03-11 Lee Dan R. Surgical drape having a fluid collection pouch with an inflatable rim
AU2003268500B2 (en) * 2002-09-05 2009-09-17 Microtek Medical, Inc. Surgical drape having a fluid collection pouch with an inflatable rim
US6936130B2 (en) * 2002-09-19 2005-08-30 Nike, Inc. Valves and methods for manufacturing the valves
MXPA05005493A (en) 2002-11-18 2005-09-08 B Chaffee Robert Inflatable device.
US6889451B2 (en) * 2003-04-23 2005-05-10 Mike, Inc. Fluid system with internal filter
US7051456B2 (en) * 2003-07-29 2006-05-30 Nike, Inc. Article of footwear incorporating an inflatable chamber
US7353625B2 (en) * 2003-11-03 2008-04-08 Reebok International, Ltd. Resilient cushioning device for the heel portion of a sole
CN1934010A (en) * 2004-03-16 2007-03-21 日晷公司 Applicator device
EP1602304B1 (en) * 2004-06-04 2007-08-15 Hill-Rom Services, Inc. Mattress with heel pressure relief portion
EP1789680B1 (en) * 2004-09-01 2014-11-19 Dielectrics Industries, Inc. Outlet check valve for fluid bladders
JP2006114017A (en) * 2004-09-14 2006-04-27 Tokai Corp Pressure regulator
US7395617B2 (en) * 2004-12-16 2008-07-08 Reebok International Ltd. Air passage device for inflatable shoe bladders
WO2006119274A2 (en) * 2005-05-04 2006-11-09 The Board Of Trustees Of The University Of Illinois Thin welded sheets fluid pathway
WO2006122562A2 (en) * 2005-05-20 2006-11-23 Coloplast A/S An appliance for irrigation and/or drainage
US7622014B2 (en) 2005-07-01 2009-11-24 Reebok International Ltd. Method for manufacturing inflatable footwear or bladders for use in inflatable articles
US20070010770A1 (en) * 2005-07-07 2007-01-11 Gildersleeve Richard E Pneumatic liner with pressure relief valve and method of supporting an extremity with a pneumatic liner with pressure relief valve
WO2007038476A2 (en) * 2005-09-26 2007-04-05 Atteneux Technologies, Inc. Pressure attenuation device
US7546696B1 (en) 2005-10-17 2009-06-16 Reebok International Ltd. Inflation mechanism and outlet valve for an article of footwear incorporating an inflatable bladder
US7409779B2 (en) 2005-10-19 2008-08-12 Nike, Inc. Fluid system having multiple pump chambers
US7451554B2 (en) * 2005-10-19 2008-11-18 Nike, Inc. Fluid system having an expandable pump chamber
US7478488B1 (en) 2005-10-31 2009-01-20 Reebok International Ltd. Inflatable and ventilating upper for an article of footwear
US20070163652A1 (en) * 2006-01-04 2007-07-19 Pekar Robert W Release valve
US7827704B2 (en) 2006-02-28 2010-11-09 Polyworks, Incorporated Methods of making polymeric articles and polymeric articles formed thereby
US20080023597A1 (en) * 2006-07-28 2008-01-31 Polyworks, Inc. Enhanced comfort wrist rest assembly
US20080031755A1 (en) * 2006-08-02 2008-02-07 Pekar Robert W Variable flow fluid pump
US7766222B2 (en) * 2006-11-03 2010-08-03 Target Brands, Inc. Inflatable financial transaction product
US8256141B2 (en) 2006-12-13 2012-09-04 Reebok International Limited Article of footwear having an adjustable ride
US7784196B1 (en) 2006-12-13 2010-08-31 Reebok International Ltd. Article of footwear having an inflatable ground engaging surface
US7694438B1 (en) 2006-12-13 2010-04-13 Reebok International Ltd. Article of footwear having an adjustable ride
US8230874B2 (en) 2006-12-20 2012-07-31 Reebok International Limited Configurable fluid transfer manifold for inflatable footwear
US7934521B1 (en) 2006-12-20 2011-05-03 Reebok International, Ltd. Configurable fluid transfer manifold for inflatable footwear
US8015730B2 (en) * 2007-01-08 2011-09-13 Nike, Inc. Footwear with vertically-arranged pump and pressure chambers
US8414275B1 (en) 2007-01-11 2013-04-09 Reebok International Limited Pump and valve combination for an article of footwear incorporating an inflatable bladder
WO2008128214A1 (en) 2007-04-13 2008-10-23 Polyworks, Inc. Impact and vibration absorbing body-contacting medallions, methods of use and methods of making
WO2008128206A1 (en) * 2007-04-13 2008-10-23 Polyworks, Inc. Cushioning medallions, methods of making and methods of using
US20080304987A1 (en) * 2007-06-05 2008-12-11 Chi-Yuan Chang Bladder-Inflating Structure
US8418270B2 (en) 2007-12-12 2013-04-16 Sport Maska Inc. Protective helmet
MX336122B (en) 2008-04-14 2016-01-08 Polyworks Inc Deep draw method of making impact and vibration absorbing articles and the articles formed thereby.
US9085405B2 (en) 2008-10-22 2015-07-21 Sealed Air Corporation (Us) Inflatable structure for packaging and associated apparatus and methods
US9004758B2 (en) * 2008-10-22 2015-04-14 Sealed Air Corporation (Us) Inflatable structure for packaging and associated apparatus and method
EP2367503A1 (en) 2008-11-25 2011-09-28 AttenueX Technologies, Inc. Implant with high vapor pressure medium
US8161916B2 (en) * 2009-01-07 2012-04-24 University Of Louisville Research Foundation, Inc. Decubitus ulcer prevention garment for dogs
US8250782B2 (en) * 2009-03-26 2012-08-28 Reebok International Limited Valve for regulating pressure in a fluid system
US8572786B2 (en) 2010-10-12 2013-11-05 Reebok International Limited Method for manufacturing inflatable bladders for use in footwear and other articles of manufacture
WO2012103645A1 (en) * 2011-02-04 2012-08-09 Promat Inc. Valve system
US9060564B2 (en) 2011-04-06 2015-06-23 Nike, Inc. Adjustable multi-bladder system for an article of footwear
US8813389B2 (en) 2011-04-06 2014-08-26 Nike, Inc. Adjustable bladder system for an article of footwear
US8844165B2 (en) 2011-04-06 2014-09-30 Nike, Inc. Adjustable bladder system with external valve for an article of footwear
US8857076B2 (en) 2011-04-06 2014-10-14 Nike, Inc. Article of footwear with an adaptive fluid system
TWI413608B (en) * 2011-06-08 2013-11-01 Yaw Shin Liao Can be a number of gas filling structure
US9125787B2 (en) 2011-09-30 2015-09-08 Covidien Lp Compression garment having a foam layer
US8850656B2 (en) 2012-06-26 2014-10-07 Luca Buttazzoni Castor assembly for a modular dolly
US9010798B2 (en) 2012-07-23 2015-04-21 Luca Buttazzoni Self-contained dolly assembly
US8894563B2 (en) 2012-08-10 2014-11-25 Attenuex Technologies, Inc. Methods and systems for performing a medical procedure
US10465809B2 (en) * 2013-02-22 2019-11-05 Nsi International, Inc. Valve assembly for expandable bladder and method of manufacturing the same
US9402779B2 (en) 2013-03-11 2016-08-02 Covidien Lp Compression garment with perspiration relief
CA2909547C (en) * 2013-04-15 2020-10-27 Promat Inc. Cushioning device for large animals
US9321236B2 (en) 2013-06-25 2016-04-26 Sealed Air Corporation (Us) Automated inflation device
US8876145B1 (en) 2013-07-15 2014-11-04 Luca Buttazzoni Castor supported dolly assembly capable of being made from lightweight materials and so as to be disposable or severable
US9409585B2 (en) 2013-07-15 2016-08-09 Luca Buttazzoni Castor supported dolly assembly capable of being made from lightweight materials and of being used as a pallet assembly
KR101529133B1 (en) * 2013-08-27 2015-06-16 함의신 Three dimensions bellows welding method and the welding device and the bellows
US8910955B1 (en) 2013-12-03 2014-12-16 Luca Buttazzoni Lightweight dolly assembly
US20160073833A1 (en) 2014-09-12 2016-03-17 Gojo Industries, Inc. Multi-chamber refill unit and dispensers
US9849053B2 (en) * 2015-08-18 2017-12-26 Sage Products, Llc Apparatus and system for boosting, transferring, turning and positioning a patient
USD848608S1 (en) 2016-10-21 2019-05-14 Coloplast A/S Base unit for anal irrigation and controller
US11540964B2 (en) 2018-02-27 2023-01-03 Hill-Rom Services, Inc. Patient support surface control, end of life indication, and x-ray cassette sleeve
EP3920771A4 (en) 2019-02-07 2022-11-02 Solace Therapeutics, Inc. Pressure attenuation device
GB2586773B (en) * 2019-05-31 2024-01-17 Seatriever International Holdings Ltd Pouch assembly

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1116964A (en) * 1954-12-28 1956-05-15 Inflation valve for air cushions and mattresses and the like
US3068494A (en) * 1961-01-16 1962-12-18 Monroe Fabricators Inc Air pump for inflatable structures
US3133696A (en) * 1962-02-19 1964-05-19 Holiday Line Inc Pump
DE1238758B (en) * 1963-03-19 1967-04-13 Windmoeller & Hoelscher Valve bag for vertical filling from a plastic gusseted tube section and process for its production
US3583008A (en) * 1969-02-26 1971-06-08 Robert J Edwards Compartmented bag having selective inflation controls
US4674532A (en) * 1984-10-30 1987-06-23 Toshimichi Koyanagi Check valve
JPH0314614Y2 (en) * 1985-12-04 1991-04-02
AU615424B2 (en) * 1987-06-16 1991-10-03 Jackel International Pty. Ltd. A pump assembly
US4966197A (en) * 1987-09-16 1990-10-30 Uresil Corporation One-way valve
US4917646A (en) * 1988-08-17 1990-04-17 Kieves G Self-sealing valve, a self-sealing, non-latex balloon, and a method for producing such a balloon
FR2656205B1 (en) * 1989-12-26 1994-04-08 Raphael Arie INFLATABLE BODY AND MANUFACTURING METHOD.

Also Published As

Publication number Publication date
KR930006352A (en) 1993-04-21
EP0535904B1 (en) 1996-09-04
DE69213377D1 (en) 1996-10-10
AU658904B2 (en) 1995-05-04
JP3276999B2 (en) 2002-04-22
KR100243442B1 (en) 2000-03-02
US5144708A (en) 1992-09-08
JPH05240362A (en) 1993-09-17
EP0535904A1 (en) 1993-04-07
DE69213377T2 (en) 1997-02-13
CA2079365C (en) 2002-07-30
AU2043392A (en) 1993-04-01

Similar Documents

Publication Publication Date Title
CA2079365A1 (en) Check valve for fluid bladders
CA2171240A1 (en) Check valve for fluid bladders
US4300560A (en) Ostomy bag having a bottom drain valve
US6412514B1 (en) Flip check valve
US4753371A (en) Flow controlled and container
US3176712A (en) Non-return valve
JPH01164142U (en)
AU2001297572A1 (en) Microfabricated fluidic circuit elements and applications
CA1038252A (en) Flexible medical container
CA2113471A1 (en) Multi-valve manifold for drug infusion systems
IT1261342B (en) TUBULAR CONNECTION ELEMENT.
US8360106B2 (en) Curved pliant film valves
CA2107420A1 (en) Valve Assembly
US4858594A (en) Solar heating panel with curvilinear passageway
CA2025373A1 (en) Control element for a ball valve
EP1048915A3 (en) Heat exchanger
JPH06697Y2 (en) Check valve
DE69209365D1 (en) Protection device against clogging of plate heat exchangers
KR930006020Y1 (en) Flexible joint
CA2241667A1 (en) Check valve
GB2213126A (en) Water holders
CA2156818A1 (en) Closed Feeding System for Liquid Fuel
KR930005269Y1 (en) Check valve for bag
JPH0531332Y2 (en)
DE59007094D1 (en) 2-way flow valve.

Legal Events

Date Code Title Description
EEER Examination request
MKEX Expiry