DE69334226D1 - Rückschlagventil - Google Patents

Rückschlagventil

Info

Publication number
DE69334226D1
DE69334226D1 DE69334226T DE69334226T DE69334226D1 DE 69334226 D1 DE69334226 D1 DE 69334226D1 DE 69334226 T DE69334226 T DE 69334226T DE 69334226 T DE69334226 T DE 69334226T DE 69334226 D1 DE69334226 D1 DE 69334226D1
Authority
DE
Germany
Prior art keywords
flexible flap
seal ridge
force
exposed
seal
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
DE69334226T
Other languages
English (en)
Inventor
Daniel A Japuntich
Grannis B Vaughn
Harold J Seppala
Anthony B Ferguson
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.)
3M Co
Original Assignee
Minnesota Mining and Manufacturing 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=25397915&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE69334226(D1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Minnesota Mining and Manufacturing Co filed Critical Minnesota Mining and Manufacturing Co
Application granted granted Critical
Publication of DE69334226D1 publication Critical patent/DE69334226D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B18/00—Breathing masks or helmets, e.g. affording protection against chemical agents or for use at high altitudes or incorporating a pump or compressor for reducing the inhalation effort
    • A62B18/08—Component parts for gas-masks or gas-helmets, e.g. windows, straps, speech transmitters, signal-devices
    • A62B18/10—Valves
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B18/00—Breathing masks or helmets, e.g. affording protection against chemical agents or for use at high altitudes or incorporating a pump or compressor for reducing the inhalation effort
    • A62B18/02—Masks
    • A62B18/025—Halfmasks
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B18/00—Breathing masks or helmets, e.g. affording protection against chemical agents or for use at high altitudes or incorporating a pump or compressor for reducing the inhalation effort
    • A62B18/08—Component parts for gas-masks or gas-helmets, e.g. windows, straps, speech transmitters, signal-devices
    • A62B18/084—Means for fastening gas-masks to heads or helmets
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B23/00—Filters for breathing-protection purposes
    • A62B23/02—Filters for breathing-protection purposes for respirators
    • A62B23/025—Filters for breathing-protection purposes for respirators the filter having substantially the shape of a mask
    • 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
    • F16K15/14—Check valves with flexible valve members
    • F16K15/16—Check valves with flexible valve members with tongue-shaped laminae
    • 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
    • Y10T137/0318—Processes
    • Y10T137/0402—Cleaning, repairing, or assembling
    • Y10T137/0491—Valve or valve element assembling, disassembling, or replacing
    • 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
    • Y10T137/7888—With valve member flexing about securement
    • Y10T137/7891—Flap or reed
DE69334226T 1992-05-29 1993-04-21 Rückschlagventil Expired - Lifetime DE69334226D1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US89128992A 1992-05-29 1992-05-29
US07/981,244 US5325892A (en) 1992-05-29 1992-11-25 Unidirectional fluid valve

Publications (1)

Publication Number Publication Date
DE69334226D1 true DE69334226D1 (de) 2008-08-07

Family

ID=25397915

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69334226T Expired - Lifetime DE69334226D1 (de) 1992-05-29 1993-04-21 Rückschlagventil

Country Status (4)

Country Link
US (4) US5325892A (de)
EP (2) EP0737489B1 (de)
KR (1) KR100258519B1 (de)
DE (1) DE69334226D1 (de)

Families Citing this family (134)

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WO1996028216A1 (en) * 1995-03-09 1996-09-19 Minnesota Mining And Manufacturing Company Fold flat respirators and processes for preparing same
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US5724677A (en) * 1996-03-08 1998-03-10 Minnesota Mining And Manufacturing Company Multi-part headband and respirator mask assembly and process for making same
US6070579A (en) * 1996-03-08 2000-06-06 3M Innovative Properties Company Elastomeric composite headband
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US6041782A (en) * 1997-06-24 2000-03-28 3M Innovative Properties Company Respiratory mask having comfortable inner cover web
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US6047698A (en) * 1998-08-20 2000-04-11 Moldex-Metric, Inc. Unidirectional fluid valve
US6394090B1 (en) 1999-02-17 2002-05-28 3M Innovative Properties Company Flat-folded personal respiratory protection devices and processes for preparing same
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US7320722B2 (en) * 2004-10-29 2008-01-22 3M Innovative Properties Company Respiratory protection device that has rapid threaded clean air source attachment
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US20080041397A1 (en) * 2006-08-17 2008-02-21 Gene Hirs Article & method for inducing proper breathing during sleep cycles to reactivate bodily functions
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US20080271740A1 (en) 2007-05-03 2008-11-06 3M Innovative Properties Company Maintenance-free flat-fold respirator that includes a graspable tab
US9770611B2 (en) 2007-05-03 2017-09-26 3M Innovative Properties Company Maintenance-free anti-fog respirator
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AU2008293810B2 (en) * 2007-08-31 2011-10-06 3M Innovative Properties Company Unitary respirator with molded thermoset elastomeric elements
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CN102046590A (zh) * 2008-06-02 2011-05-04 3M创新有限公司 用于驻极体的电荷加强添加剂
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EP0737489B1 (de) 2008-06-25
AU3445995A (en) 1996-01-04
EP0737489A2 (de) 1996-10-16
EP1640043A3 (de) 2009-12-09
US20070119459A1 (en) 2007-05-31
AU680382B2 (en) 1997-07-24
KR950701537A (ko) 1995-04-28
KR100258519B1 (ko) 2000-06-15
US7493900B1 (en) 2009-02-24
EP0737489A3 (de) 1996-10-30
US5325892A (en) 1994-07-05
EP1640043A2 (de) 2006-03-29
US7428903B1 (en) 2008-09-30

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