Underwater breathing device
United States Patent 3028859
US Patent References:
Mouthpiece for breathing apparatus
- - 1328057

Breathing apparatus
- - 1625419

Pressure responsive regulator
- - 2596178

Demand valve control mechanism
- - 2608971

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- - 2732840


Inventors:
Mitchell, Wallace F.
Publication Date:
04/10/1962
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Assignee:
DACOR CORP
Primary Class:
128/204.260
Other Classes:
137/102
International Classes:
B63C11/22; B63C11/02
US Patent References:
2757680Breathing device
2823670Underwater breathing apparatus
2920637Valve structure for a demand oxygen regulator
Foreign References:
GB145296A
FR942351A