CA2624848A1 - Self-sealing filter connection and gas mask and filter assembly incorporating the same - Google Patents

Self-sealing filter connection and gas mask and filter assembly incorporating the same Download PDF

Info

Publication number
CA2624848A1
CA2624848A1 CA002624848A CA2624848A CA2624848A1 CA 2624848 A1 CA2624848 A1 CA 2624848A1 CA 002624848 A CA002624848 A CA 002624848A CA 2624848 A CA2624848 A CA 2624848A CA 2624848 A1 CA2624848 A1 CA 2624848A1
Authority
CA
Canada
Prior art keywords
canister
self
gas mask
sealing
filter
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
CA002624848A
Other languages
French (fr)
Other versions
CA2624848C (en
Inventor
Gary Michael Dunn
Brian Edward Davis
Andrew Capon
David K. Friday
David W. Pike
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.)
Avon Protection Systems Inc
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of CA2624848A1 publication Critical patent/CA2624848A1/en
Application granted granted Critical
Publication of CA2624848C publication Critical patent/CA2624848C/en
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
    • A62B9/00—Component parts for respiratory or breathing apparatus
    • A62B9/04—Couplings; Supporting frames
    • 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
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B7/00—Respiratory apparatus
    • A62B7/10—Respiratory apparatus with filter elements

Abstract

A gas mask having a filter canister mount including an inhalation valve and a self-sealing mechanism that prevents air inflow when a filter canister is removed from the canister mount. In one embodiment, the self-sealing valve includes an elastomeric diaphragm mounted in the inlet port and includes a hinge and a skirt, the skirt having a sealing surface that is biased into contact with a valve seat. The filter canister includes a projection adapted to act on the hinge to pivot the skirt away from the sealing surface as the canister is fitted to the canister mount. In one embodiment, the canister comprises a stacked-radial-flow arrangement of particulate and carbon filtration media. In one embodiment, the gas mask includes a visor having a pair of spaced optical panels with a hinge mounted therebetween for relative rotational movement.
CA002624848A 2000-04-18 2001-04-17 Self-sealing filter connection and gas mask and filter assembly incorporating the same Expired - Lifetime CA2624848C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US19801200P 2000-04-18 2000-04-18
US60/198,012 2000-04-18
CA002405510A CA2405510C (en) 2000-04-18 2001-04-17 Self-sealing filter connection and gas mask and filter assembly incorporating the same

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
CA002405510A Division CA2405510C (en) 2000-04-18 2001-04-17 Self-sealing filter connection and gas mask and filter assembly incorporating the same

Publications (2)

Publication Number Publication Date
CA2624848A1 true CA2624848A1 (en) 2001-10-25
CA2624848C CA2624848C (en) 2009-02-24

Family

ID=22731624

Family Applications (3)

Application Number Title Priority Date Filing Date
CA002624848A Expired - Lifetime CA2624848C (en) 2000-04-18 2001-04-17 Self-sealing filter connection and gas mask and filter assembly incorporating the same
CA002625243A Expired - Lifetime CA2625243C (en) 2000-04-18 2001-04-17 Self-sealing filter connection and gas mask and filter assembly incorporating the same
CA002405510A Expired - Lifetime CA2405510C (en) 2000-04-18 2001-04-17 Self-sealing filter connection and gas mask and filter assembly incorporating the same

Family Applications After (2)

Application Number Title Priority Date Filing Date
CA002625243A Expired - Lifetime CA2625243C (en) 2000-04-18 2001-04-17 Self-sealing filter connection and gas mask and filter assembly incorporating the same
CA002405510A Expired - Lifetime CA2405510C (en) 2000-04-18 2001-04-17 Self-sealing filter connection and gas mask and filter assembly incorporating the same

Country Status (6)

Country Link
US (2) US6860267B2 (en)
EP (1) EP1276542B1 (en)
JP (1) JP4746247B2 (en)
CA (3) CA2624848C (en)
DE (1) DE60133186T2 (en)
WO (1) WO2001078839A2 (en)

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Also Published As

Publication number Publication date
US7213595B2 (en) 2007-05-08
CA2405510C (en) 2008-10-07
JP4746247B2 (en) 2011-08-10
DE60133186T2 (en) 2009-03-12
CA2405510A1 (en) 2001-10-25
US20040025880A1 (en) 2004-02-12
US6860267B2 (en) 2005-03-01
CA2625243A1 (en) 2001-10-25
CA2624848C (en) 2009-02-24
WO2001078839A2 (en) 2001-10-25
DE60133186D1 (en) 2008-04-24
JP2004503267A (en) 2004-02-05
US20070056589A1 (en) 2007-03-15
WO2001078839A3 (en) 2002-07-25
WO2001078839B1 (en) 2003-01-23
EP1276542B1 (en) 2008-03-12
CA2625243C (en) 2009-04-14
EP1276542A2 (en) 2003-01-22

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Effective date: 20210419