CN1063049A - 安全头盔内部或有关安全头盔的改进 - Google Patents

安全头盔内部或有关安全头盔的改进 Download PDF

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Publication number
CN1063049A
CN1063049A CN91112799A CN91112799A CN1063049A CN 1063049 A CN1063049 A CN 1063049A CN 91112799 A CN91112799 A CN 91112799A CN 91112799 A CN91112799 A CN 91112799A CN 1063049 A CN1063049 A CN 1063049A
Authority
CN
China
Prior art keywords
air
helmet
insulation volume
pressure
volume
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.)
Pending
Application number
CN91112799A
Other languages
English (en)
Chinese (zh)
Inventor
罗伯特·劳尔
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.)
Aran Fire & Safety (uk) Ltd
Original Assignee
Aran Fire & Safety (uk) Ltd
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 Aran Fire & Safety (uk) Ltd filed Critical Aran Fire & Safety (uk) Ltd
Publication of CN1063049A publication Critical patent/CN1063049A/zh
Pending legal-status Critical Current

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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
    • A62B18/04—Gas helmets

Landscapes

  • Health & Medical Sciences (AREA)
  • Pulmonology (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Helmets And Other Head Coverings (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)
CN91112799A 1990-12-04 1991-12-04 安全头盔内部或有关安全头盔的改进 Pending CN1063049A (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB909026311A GB9026311D0 (en) 1990-12-04 1990-12-04 Improvements in or relating to safety helmets
GB9026311.2 1990-12-04

Publications (1)

Publication Number Publication Date
CN1063049A true CN1063049A (zh) 1992-07-29

Family

ID=10686429

Family Applications (1)

Application Number Title Priority Date Filing Date
CN91112799A Pending CN1063049A (zh) 1990-12-04 1991-12-04 安全头盔内部或有关安全头盔的改进

Country Status (8)

Country Link
CN (1) CN1063049A (2)
AU (1) AU8940991A (2)
GB (1) GB9026311D0 (2)
IN (1) IN180245B (2)
MX (1) MX9102372A (2)
NZ (1) NZ240850A (2)
WO (1) WO1992010237A1 (2)
ZA (1) ZA919486B (2)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5640952A (en) * 1995-09-01 1997-06-24 Swann; Linsey J. Personal emergency breathing system for supplied air respirators

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR857420A (fr) * 1939-07-06 1940-09-12 Masque à gaz
US3202150A (en) * 1962-06-11 1965-08-24 Scott Aviation Corp Filter attachment for a pressurized breathing apparatus
CH614379A5 (en) * 1977-03-14 1979-11-30 Franco Carloni Fire protection helmet for motor racing events having devices permitting respiration
GB2182568B (en) * 1985-09-13 1988-12-29 Catalyst Technology U K Limite Improvements in or relating to safety helmets

Also Published As

Publication number Publication date
MX9102372A (es) 1992-09-01
IN180245B (2) 1998-01-17
AU8940991A (en) 1992-07-08
NZ240850A (en) 1993-09-27
GB9026311D0 (en) 1991-01-23
WO1992010237A1 (en) 1992-06-25
ZA919486B (en) 1992-11-25

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Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C01 Deemed withdrawal of patent application (patent law 1993)
WD01 Invention patent application deemed withdrawn after publication