Title:
Pneumatic suspension for safety helmet
United States Patent 2759186


Inventors:
Dye, Edward R.
Application Number:
US36646053A
Publication Date:
08/21/1956
Filing Date:
07/07/1953
Assignee:
CORNELL AERONAUTICAL LABOR INC
Primary Class:
Other Classes:
2/DIG.3
International Classes:
A42B3/14
View Patent Images:
US Patent References:
2597924Self-sealing valve for inflatable pneumatic bladders or the like1952-05-27
2398561Suspension device for safety headgear1946-04-16
2365422Suspension mounting for safety headgear1944-12-19
2184043Safety helmet1939-12-19
2150290Athletic helmet1939-03-14
2145289Swimming belt1939-01-31
2136678Protective headgear1938-11-15
2028060Protector1936-01-14
0882686N/A1908-03-24
Foreign References:
IT375391B
GB449905A1936-07-06
GB530434A1940-12-11
GB536246A1941-05-07
GB539577A1941-09-16