GB2323294A - Breathing apparatus and nozzle therefor - Google Patents

Breathing apparatus and nozzle therefor

Info

Publication number
GB2323294A
GB2323294A GB9812206A GB9812206A GB2323294A GB 2323294 A GB2323294 A GB 2323294A GB 9812206 A GB9812206 A GB 9812206A GB 9812206 A GB9812206 A GB 9812206A GB 2323294 A GB2323294 A GB 2323294A
Authority
GB
United Kingdom
Prior art keywords
nozzle
breathing
breathing apparatus
air flow
outlet
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
GB9812206A
Other versions
GB9812206D0 (en
GB2323294B (en
Inventor
Peter David Grayson
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.)
GEO Ltd
Original Assignee
GEO 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
Priority claimed from GBGB9525097.3A external-priority patent/GB9525097D0/en
Application filed by GEO Ltd filed Critical GEO Ltd
Priority to GB9812206A priority Critical patent/GB2323294B/en
Publication of GB9812206D0 publication Critical patent/GB9812206D0/en
Publication of GB2323294A publication Critical patent/GB2323294A/en
Application granted granted Critical
Publication of GB2323294B publication Critical patent/GB2323294B/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • A62B18/003—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 having means for creating a fresh air curtain

Landscapes

  • Health & Medical Sciences (AREA)
  • Pulmonology (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)

Abstract

A breathing apparatus and a nozzle for use in a breathing apparatus is provided by the present invention. In use, filtered air flows along passageway (31) of the nozzle and a first air flow for breathing flows out of a first outlet (23). A second outlet (25) allows outflow of a second air flow which establishes a gas curtain outwardly of the first air flow. The gas curtain substantially reduces the breathing of contaminated atmospheric air by the wearer. The apparatus and nozzle have particular application for cyclists, asthma sufferers, etc.
GB9812206A 1995-12-08 1996-12-09 Breathing apparatus and nozzle therefor Expired - Fee Related GB2323294B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9812206A GB2323294B (en) 1995-12-08 1996-12-09 Breathing apparatus and nozzle therefor

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GBGB9525097.3A GB9525097D0 (en) 1995-12-08 1995-12-08 Breathing apparatus and nozzle therefor
PCT/GB1996/003023 WO1997021466A1 (en) 1995-12-08 1996-12-09 Breathing apparatus and nozzle therefor
GB9812206A GB2323294B (en) 1995-12-08 1996-12-09 Breathing apparatus and nozzle therefor

Publications (3)

Publication Number Publication Date
GB9812206D0 GB9812206D0 (en) 1998-08-05
GB2323294A true GB2323294A (en) 1998-09-23
GB2323294B GB2323294B (en) 2000-02-16

Family

ID=26308252

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9812206A Expired - Fee Related GB2323294B (en) 1995-12-08 1996-12-09 Breathing apparatus and nozzle therefor

Country Status (1)

Country Link
GB (1) GB2323294B (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE483907A (en) *
BE545607A (en) *
DE2135928A1 (en) * 1970-07-20 1972-01-27 Mine Safety Appliances Co., Pittsburgh, Pa. (V.StA.) Respirator
DE2903921A1 (en) * 1979-02-02 1980-08-14 Draegerwerk Ag Respirator hood with head-bands - has annular pipe supplied composite inlet nozzle in visor region, directing air towards nose and mouth
WO1989000874A1 (en) * 1987-07-28 1989-02-09 Soederberg Stig Respiratory mask

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE483907A (en) *
BE545607A (en) *
DE2135928A1 (en) * 1970-07-20 1972-01-27 Mine Safety Appliances Co., Pittsburgh, Pa. (V.StA.) Respirator
DE2903921A1 (en) * 1979-02-02 1980-08-14 Draegerwerk Ag Respirator hood with head-bands - has annular pipe supplied composite inlet nozzle in visor region, directing air towards nose and mouth
WO1989000874A1 (en) * 1987-07-28 1989-02-09 Soederberg Stig Respiratory mask

Also Published As

Publication number Publication date
GB9812206D0 (en) 1998-08-05
GB2323294B (en) 2000-02-16

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20141209