GB324909A - Improvements in respirators and the like - Google Patents

Improvements in respirators and the like

Info

Publication number
GB324909A
GB324909A GB3152328A GB3152328A GB324909A GB 324909 A GB324909 A GB 324909A GB 3152328 A GB3152328 A GB 3152328A GB 3152328 A GB3152328 A GB 3152328A GB 324909 A GB324909 A GB 324909A
Authority
GB
United Kingdom
Prior art keywords
mask
box
valve
mouthpiece
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.)
Expired
Application number
GB3152328A
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.)
Individual
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
Priority to GB3152328A priority Critical patent/GB324909A/en
Publication of GB324909A publication Critical patent/GB324909A/en
Expired legal-status Critical Current

Links

Classifications

    • AHUMAN NECESSITIES
    • A62LIFE-SAVING; FIRE-FIGHTING
    • A62BDEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B18/00Breathing 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

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

324,909. Sadd, J. A., Oct. 30, 1928. Respirators. - Gas masks, in which the inhaled air passes through filtering material b, are provided with a mouthpiece d, a funnel shaped member surrounding the nose and mouth, or other device such that the air can be drawn directly into the lungs, and with means whereby the exhaled air passes into the space between the mask and the face, forming a non-toxic gas-cushion which prevents the ingress of poisonous gases. The means shown comprises a non-return valve f in the filter-box a, a similar valve e being provided in the inlet passage of the box. The mask may be of metal or flexible material and may be provided with ordinary eyepieces, wiped by rotary wipers or by a fold in the mask, or with slits k or gauze or like screens. The filter-box a is provided with a baffle g forming a saliva trap, and may be supported on the head and connected with the mouthpiece by a tube or passage. The exhaled gases may escape from the mask around the edges thereof or through a valve provided therein. The mask may be made wholly or partly to envelope the head, the skirt being tucked into the collar of the jacket.
GB3152328A 1928-10-30 1928-10-30 Improvements in respirators and the like Expired GB324909A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3152328A GB324909A (en) 1928-10-30 1928-10-30 Improvements in respirators and the like

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3152328A GB324909A (en) 1928-10-30 1928-10-30 Improvements in respirators and the like

Publications (1)

Publication Number Publication Date
GB324909A true GB324909A (en) 1930-01-30

Family

ID=10324359

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3152328A Expired GB324909A (en) 1928-10-30 1928-10-30 Improvements in respirators and the like

Country Status (1)

Country Link
GB (1) GB324909A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2610624A (en) * 1947-06-04 1952-09-16 Mine Safety Appliances Co Pocket respirator
US3683907A (en) * 1970-07-20 1972-08-15 Mine Safety Appliances Co Fresh air respirator
US4098270A (en) * 1976-10-26 1978-07-04 Bbdm, Inc. Smoke mask apparatus
US4896665A (en) * 1987-10-02 1990-01-30 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Respiratory protection hood and safety equipment for aircraft
GB2255285A (en) * 1991-04-26 1992-11-04 William George Lyne Air purifier
CN102639193A (en) * 2009-09-25 2012-08-15 Jcs集团 Respiratory device with filter
CN108601960A (en) * 2016-02-10 2018-09-28 株式会社重松制作所 The smog mask body of breathing equipment

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2610624A (en) * 1947-06-04 1952-09-16 Mine Safety Appliances Co Pocket respirator
US3683907A (en) * 1970-07-20 1972-08-15 Mine Safety Appliances Co Fresh air respirator
US4098270A (en) * 1976-10-26 1978-07-04 Bbdm, Inc. Smoke mask apparatus
US4896665A (en) * 1987-10-02 1990-01-30 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Respiratory protection hood and safety equipment for aircraft
GB2255285A (en) * 1991-04-26 1992-11-04 William George Lyne Air purifier
CN102639193A (en) * 2009-09-25 2012-08-15 Jcs集团 Respiratory device with filter
CN102639193B (en) * 2009-09-25 2015-04-15 佳士科技有限公司 Respiratory device with filter
CN108601960A (en) * 2016-02-10 2018-09-28 株式会社重松制作所 The smog mask body of breathing equipment

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