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GB2209474B - Improvements relating to respirators - Google Patents

Improvements relating to respirators

Info

Publication number
GB2209474B
GB2209474B GB8820901A GB8820901A GB2209474B GB 2209474 B GB2209474 B GB 2209474B GB 8820901 A GB8820901 A GB 8820901A GB 8820901 A GB8820901 A GB 8820901A GB 2209474 B GB2209474 B GB 2209474B
Authority
GB
United Kingdom
Prior art keywords
respirators
improvements relating
relating
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 - Fee Related
Application number
GB8820901A
Other versions
GB8820901D0 (en
GB2209474A (en
Inventor
A G Herbert
K G Sadler
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.)
Chapman & Smith Ltd
Original Assignee
Chapman & Smith 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 Chapman & Smith Ltd filed Critical Chapman & Smith Ltd
Publication of GB8820901D0 publication Critical patent/GB8820901D0/en
Publication of GB2209474A publication Critical patent/GB2209474A/en
Application granted granted Critical
Publication of GB2209474B publication Critical patent/GB2209474B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
    • 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
    • A62B18/006—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 with pumps for forced ventilation

Landscapes

  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Pulmonology (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)
GB8820901A 1987-09-08 1988-09-06 Improvements relating to respirators Expired - Fee Related GB2209474B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB878721040A GB8721040D0 (en) 1987-09-08 1987-09-08 Respirators

Publications (3)

Publication Number Publication Date
GB8820901D0 GB8820901D0 (en) 1988-10-05
GB2209474A GB2209474A (en) 1989-05-17
GB2209474B true GB2209474B (en) 1991-07-03

Family

ID=10623413

Family Applications (2)

Application Number Title Priority Date Filing Date
GB878721040A Pending GB8721040D0 (en) 1987-09-08 1987-09-08 Respirators
GB8820901A Expired - Fee Related GB2209474B (en) 1987-09-08 1988-09-06 Improvements relating to respirators

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB878721040A Pending GB8721040D0 (en) 1987-09-08 1987-09-08 Respirators

Country Status (1)

Country Link
GB (2) GB8721040D0 (en)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2251035A (en) * 1990-12-20 1992-06-24 Dunphy Oil And Gas Burners Lim Centrifugal fan
US5153365A (en) * 1991-09-03 1992-10-06 Chang Kun Ming Belt-type electric shock device
US5372130A (en) * 1992-02-26 1994-12-13 Djs&T Limited Partnership Face mask assembly and method having a fan and replaceable filter
DE19715581C1 (en) * 1997-04-15 1999-02-18 Weinmann G Geraete Med Air supply for fans of ventilation devices
CN1099530C (en) * 1997-12-01 2003-01-22 李廷浩 Air-cave generating pump
JP3726886B2 (en) * 2001-06-29 2005-12-14 興研株式会社 Breathing apparatus
DE20208663U1 (en) * 2002-06-04 2002-08-22 Chen, Cheng-Hwa, Dali, Taichung Electric respirator
DE10253937B3 (en) * 2002-11-19 2004-01-15 Seleon Gmbh Fan units for a ventilator
CN1859940B (en) 2003-09-25 2010-06-16 雷斯梅德有限公司 respirator mask and system thereof
US20060096596A1 (en) * 2004-11-05 2006-05-11 Occhialini James M Wearable system for positive airway pressure therapy
EP2063945B1 (en) 2006-09-07 2019-07-03 ResMed Ltd. Mask and flow generator system
NZ593449A (en) 2008-01-31 2012-12-21 Resmed Ltd Respiratory apparatus with a pair of delivery conduits
US10238822B2 (en) 2009-05-29 2019-03-26 Resmed Limited PAP system
NZ613721A (en) 2009-08-28 2015-02-27 Resmed Ltd Pap system
CN111664101B (en) 2009-11-19 2022-03-15 瑞思迈发动机及马达技术股份有限公司 Blower fan
CH704772A2 (en) * 2011-04-07 2012-10-15 Tb Safety Gmbh Apparatus for filtering contaminated air.
US9192795B2 (en) 2011-10-07 2015-11-24 Honeywell International Inc. System and method of calibration in a powered air purifying respirator
US9808656B2 (en) 2012-01-09 2017-11-07 Honeywell International Inc. System and method of oxygen deficiency warning in a powered air purifying respirator
EP4173677B1 (en) 2014-12-04 2025-08-20 ResMed Pty Ltd A multistage blower
CN108175969B (en) * 2018-01-30 2020-05-01 山东星火科学技术研究院 Radial-flow chemical experiment gas mask
USD1060658S1 (en) 2020-12-28 2025-02-04 ResMed Asia Pte. Ltd. Patient interface
EP4352859A1 (en) * 2021-06-08 2024-04-17 Koninklijke Philips N.V. Motor assembly with improved sealed connection
GB2634249A (en) * 2023-10-03 2025-04-09 Dyson Technology Ltd Wearable air purifier

Also Published As

Publication number Publication date
GB8820901D0 (en) 1988-10-05
GB8721040D0 (en) 1987-10-14
GB2209474A (en) 1989-05-17

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Legal Events

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

Effective date: 19930906