GB203741A - Improvements in gas-masks - Google Patents
Improvements in gas-masksInfo
- Publication number
- GB203741A GB203741A GB1347822A GB1347822A GB203741A GB 203741 A GB203741 A GB 203741A GB 1347822 A GB1347822 A GB 1347822A GB 1347822 A GB1347822 A GB 1347822A GB 203741 A GB203741 A GB 203741A
- Authority
- GB
- United Kingdom
- Prior art keywords
- mask
- face mask
- eyepieces
- ori
- rubber
- 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
- 239000004744 fabric Substances 0.000 abstract 1
- 230000004048 modification Effects 0.000 abstract 1
- 238000012986 modification Methods 0.000 abstract 1
- 230000000241 respiratory effect Effects 0.000 abstract 1
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
- A62B18/08—Component parts for gas-masks or gas-helmets, e.g. windows, straps, speech transmitters, signal-devices
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
203,741. Davis, R. H., and Rosling, C. G. May 12, 1922. Respiratory aplpliances.-Relates to masks wherein an ori-nasal mask is attached to a larger face mask, and consists in arranging the orinasal mask outside the face mask, and enabling the eyes to be uncovered while retaining a gastight joint around the nose and mouth. In the form shown in Fig. 1, the ori-nasal mask b of sponge, rubber &c. is arranged outside a flexible sheet-rubber face mask a which carries the usual expiratory valve c and air connection d. The upper head-straps are fastened to the usual pad i<1> by a quick-release fastening, and additional straps j are provided to secure the ori-nasal mask independently. The eyepieces e are triangular in shape and may be cleaned by pads n carried on rods which are secured in flexible pockets m in the face mask. In a modification the eyepieces are mounted in an external flexible layer of rubber-proofed fabric which is stitched to the face mask around the edges enabling the eyepieces to be moved relative to the eyes of the wearer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1347822A GB203741A (en) | 1922-05-12 | 1922-05-12 | Improvements in gas-masks |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1347822A GB203741A (en) | 1922-05-12 | 1922-05-12 | Improvements in gas-masks |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB203741A true GB203741A (en) | 1923-09-12 |
Family
ID=10023689
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1347822A Expired GB203741A (en) | 1922-05-12 | 1922-05-12 | Improvements in gas-masks |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB203741A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4641647A (en) * | 1985-02-08 | 1987-02-10 | Sheryl L. Taylor | Device for securing respiratory appliance during respiratory therapy |
| US6457473B1 (en) | 1997-10-03 | 2002-10-01 | 3M Innovative Properties Company | Drop-down face mask assembly |
| US6732733B1 (en) | 1997-10-03 | 2004-05-11 | 3M Innovative Properties Company | Half-mask respirator with head harness assembly |
| US10589048B2 (en) | 2013-11-11 | 2020-03-17 | Koninklijke Philips N.V. | Modular back strap for patient interface device |
-
1922
- 1922-05-12 GB GB1347822A patent/GB203741A/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4641647A (en) * | 1985-02-08 | 1987-02-10 | Sheryl L. Taylor | Device for securing respiratory appliance during respiratory therapy |
| US6457473B1 (en) | 1997-10-03 | 2002-10-01 | 3M Innovative Properties Company | Drop-down face mask assembly |
| US6732733B1 (en) | 1997-10-03 | 2004-05-11 | 3M Innovative Properties Company | Half-mask respirator with head harness assembly |
| US10589048B2 (en) | 2013-11-11 | 2020-03-17 | Koninklijke Philips N.V. | Modular back strap for patient interface device |
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