Title:
Oro-nasal face mask with improved sealing cuff
United States Patent 3330273


Inventors:
Ray, Bennett V.
Application Number:
US40412164A
Publication Date:
07/11/1967
Filing Date:
10/15/1964
Assignee:
PURITAN COMPRESSED GAS CORP
Primary Class:
Other Classes:
49/475.1
International Classes:
A62B18/02; A61M16/06
View Patent Images:
US Patent References:
2969252Seal1961-01-24
2931356Oxygen mask having detachable face seal cushion1960-04-05
2875757Marginal shaping and sealing means for respiratory masks1959-03-03
2647792Closure seal of cantilever type for vehicle bodies and the like1953-08-04
2555780Weather strip1951-06-05
2546049Wind stop or sealing strip1951-03-20
2263063Baggage rack head cushion1941-11-18
0902961N/A1908-11-03
0577956N/A1897-03-02