GB623690A - Improvements relating to submarine breathing masks - Google Patents
Improvements relating to submarine breathing masksInfo
- Publication number
- GB623690A GB623690A GB12940/47A GB1294047A GB623690A GB 623690 A GB623690 A GB 623690A GB 12940/47 A GB12940/47 A GB 12940/47A GB 1294047 A GB1294047 A GB 1294047A GB 623690 A GB623690 A GB 623690A
- Authority
- GB
- United Kingdom
- Prior art keywords
- tube
- shroud
- improvements relating
- wearer
- case
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63C—LAUNCHING, HAULING-OUT, OR DRY-DOCKING OF VESSELS; LIFE-SAVING IN WATER; EQUIPMENT FOR DWELLING OR WORKING UNDER WATER; MEANS FOR SALVAGING OR SEARCHING FOR UNDERWATER OBJECTS
- B63C11/00—Equipment for dwelling or working underwater; Means for searching for underwater objects
- B63C11/02—Divers' equipment
- B63C11/12—Diving masks
- B63C11/16—Diving masks with air supply by suction from diver, e.g. snorkels
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Respiratory Apparatuses And Protective Means (AREA)
Abstract
623,690. Respiratory appliances. PIRELLI SOC. PER AZIONI. May 13, 1947, No. 12940. Convention date, Jan. 25. [Class 81(ii)] A mask, which enables the wearer to have direct access to the atmosphere when at the surface, comprises a front portion I to which is connected a rigid breathing tube 8, the upper end of which carries a shroud 13 which is closed by a float 11 when the wearer dives below the surface. The float slides on the tube 8 and abuts against a fixed collar in its lower position. Either the shroud may have a perforated closure member at its lower end or it may be mounted on the upper end of the tube 8 which, in this case, is perforated, see Figs. 3, 4 (not shown). In either case the lower edge of the shroud is below the open part of the tube.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT623690X | 1947-01-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB623690A true GB623690A (en) | 1949-05-20 |
Family
ID=11293409
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB12940/47A Expired GB623690A (en) | 1947-01-25 | 1947-05-13 | Improvements relating to submarine breathing masks |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB623690A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2148128A (en) * | 1983-10-25 | 1985-05-30 | Jang Chin Fa | Simple diving device |
| CN104925240A (en) * | 2014-03-20 | 2015-09-23 | 贺玉广 | Diving device |
-
1947
- 1947-05-13 GB GB12940/47A patent/GB623690A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2148128A (en) * | 1983-10-25 | 1985-05-30 | Jang Chin Fa | Simple diving device |
| CN104925240A (en) * | 2014-03-20 | 2015-09-23 | 贺玉广 | Diving device |
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