GB324909A - Improvements in respirators and the like - Google Patents
Improvements in respirators and the likeInfo
- 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
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
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.
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)
| 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 |
-
1928
- 1928-10-30 GB GB3152328A patent/GB324909A/en not_active Expired
Cited By (8)
| 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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