Breathing apparatus exhalation valve with suction control
United States Patent 3348538
US Patent References:
Arrangement for controlling the supply of gas to a breathing device
- - 3060933
Automatic exhaust valve for underwater respiration apparatus
- - 3062207
Underwater breathing apparatus
- - 3078846
Underwater respiration apparatus
- - 3085571
Arrangement for controlling the supply of gas to a breathing device
- - 3060933
Automatic exhaust valve for underwater respiration apparatus
- - 3062207
Underwater breathing apparatus
- - 3078846
Underwater respiration apparatus
- - 3085571
Inventors:
Benzel, Howard A.
Publication Date:
10/24/1967
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Export Citation:
Assignee:
SCOTT AVIAT CORP
Primary Class:
Other Classes:
137/505.470, 251/78
International Classes:
A62B9/02; A62B9/00
Foreign References:
| AU250763B | ||||
| DE946258C |