EP0356000A3 - Breathing apparatus - Google Patents

Breathing apparatus Download PDF

Info

Publication number
EP0356000A3
EP0356000A3 EP19890307413 EP89307413A EP0356000A3 EP 0356000 A3 EP0356000 A3 EP 0356000A3 EP 19890307413 EP19890307413 EP 19890307413 EP 89307413 A EP89307413 A EP 89307413A EP 0356000 A3 EP0356000 A3 EP 0356000A3
Authority
EP
European Patent Office
Prior art keywords
breathing apparatus
solid
heat sink
phase transition
loop
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Withdrawn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
EP19890307413
Other languages
German (de)
French (fr)
Other versions
EP0356000A2 (en
Inventor
Stanley John The British Petroleum Becker
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.)
BP PLC
Original Assignee
BP PLC
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
Priority claimed from GB888820386A external-priority patent/GB8820386D0/en
Priority claimed from GB888820385A external-priority patent/GB8820385D0/en
Application filed by BP PLC filed Critical BP PLC
Publication of EP0356000A2 publication Critical patent/EP0356000A2/en
Publication of EP0356000A3 publication Critical patent/EP0356000A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B23/00—Filters for breathing-protection purposes
    • 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
    • A62B17/00—Protective clothing affording protection against heat or harmful chemical agents or for use at high altitudes
    • A62B17/04—Hoods
    • 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
    • A62B9/003—Means for influencing the temperature or humidity of the breathing gas

Abstract

Breathing apparatus having a heat sink (12) for cooling breathable gas in which the heat sink (12) comprises a material, for example an alloy or a wax, capable of undergoing at least one endothermic solid/solid or solid/liquid phase transition, with a phase transition temperature between 20°C and 100°C, preferably between 40°C and 80°C. The breathing apparatus may be of the closed loop, partially-closed-loop or open loop type.
EP19890307413 1988-08-26 1989-07-20 Breathing apparatus Withdrawn EP0356000A3 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB888820386A GB8820386D0 (en) 1988-08-26 1988-08-26 Breathing apparatus
GB888820385A GB8820385D0 (en) 1988-08-26 1988-08-26 Breathing apparatus
GB8820386 1988-08-26
GB8820385 1988-08-26

Publications (2)

Publication Number Publication Date
EP0356000A2 EP0356000A2 (en) 1990-02-28
EP0356000A3 true EP0356000A3 (en) 1992-05-20

Family

ID=26294326

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19890307413 Withdrawn EP0356000A3 (en) 1988-08-26 1989-07-20 Breathing apparatus

Country Status (6)

Country Link
EP (1) EP0356000A3 (en)
JP (1) JPH0299078A (en)
KR (1) KR900002811A (en)
AU (1) AU3890789A (en)
DK (1) DK395189A (en)
PT (1) PT91531A (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2750869B1 (en) * 1996-07-11 1998-11-06 Commeinhes Remco BREATHING APPARATUS WITH CLOSED CIRCUIT OPERATION
US7111624B2 (en) 2000-03-21 2006-09-26 Fisher & Paykel Healthcare Limited Apparatus for delivering humidified gases
US7588029B2 (en) 2000-03-21 2009-09-15 Fisher & Paykel Healthcare Limited Humidified gases delivery apparatus
DE10153121C1 (en) * 2001-10-27 2003-05-22 Draeger Safety Ag & Co Kgaa Cooler for respiration gas, passes it through closed, jacketed container holding annular carbon dioxide absorption packing and a paraffin wax or salt, all in thermal contact
IL148504A (en) 2002-03-05 2006-10-05 Reisman Ron Protective breathing hood
FI4049703T3 (en) 2004-08-20 2023-12-04 Fisher & Paykel Healthcare Ltd Apparatus for measuring properties of gases supplied to a patient
MX2015012960A (en) 2013-03-14 2016-07-20 Scott Tech Inc Respirator with phase change material.
US10537755B2 (en) 2013-03-14 2020-01-21 Scott Technologies, Inc. Heat deformable material for face seal

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB173310A (en) * 1920-09-25 1921-12-28 Robert Henry Davis A cooling chamber for use with breathing apparatus
DE879651C (en) * 1938-07-25 1953-06-15 Draegerwerk Ag Method and device for cooling alkali cartridges in breathing apparatus with breathing air
DE2114307A1 (en) * 1971-03-24 1972-10-05 Hennecke Gmbh Maschf Mold for the production of plastic parts
FR2320518A1 (en) * 1975-08-08 1977-03-04 Dornier System Gmbh Refrigerated cartridge for breathing appts. - has liq. filled casing with finned distributor tubes and connector plates at ends
FR2585580A1 (en) * 1985-07-31 1987-02-06 Nihon Saibohgu Co Ltd Gas mask

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB173310A (en) * 1920-09-25 1921-12-28 Robert Henry Davis A cooling chamber for use with breathing apparatus
DE879651C (en) * 1938-07-25 1953-06-15 Draegerwerk Ag Method and device for cooling alkali cartridges in breathing apparatus with breathing air
DE2114307A1 (en) * 1971-03-24 1972-10-05 Hennecke Gmbh Maschf Mold for the production of plastic parts
FR2320518A1 (en) * 1975-08-08 1977-03-04 Dornier System Gmbh Refrigerated cartridge for breathing appts. - has liq. filled casing with finned distributor tubes and connector plates at ends
FR2585580A1 (en) * 1985-07-31 1987-02-06 Nihon Saibohgu Co Ltd Gas mask

Also Published As

Publication number Publication date
KR900002811A (en) 1990-03-23
DK395189A (en) 1990-02-27
DK395189D0 (en) 1989-08-11
JPH0299078A (en) 1990-04-11
AU3890789A (en) 1990-03-01
PT91531A (en) 1990-03-08
EP0356000A2 (en) 1990-02-28

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