Title:
Fire protection system
United States Patent 2586797


Inventors:
James, Dunlop
Forrest, Durang Edwin
Application Number:
US75614047A
Publication Date:
02/26/1952
Filing Date:
06/21/1947
Assignee:
WESTINGHOUSE ELECTRIC CORP
OTIS ELEVATOR CO
Primary Class:
Other Classes:
169/54, 169/61
International Classes:
A62C99/00; F24F7/06
View Patent Images:
US Patent References:
2299833Louver mechanism for attic ventilation1942-10-27
2222365Fire extinguishing and alarm system1940-11-19
2087637Ventilating system1937-07-20
2073744Refrigeration1937-03-16
1905243Method of and apparatus for removing fumes from buildings1933-04-25
1847736Method and apparatus for exhausting moisture laden gases1932-03-01
0991909N/A1911-05-09
0983877N/A1911-02-14
0980471N/A1911-01-03
0832247N/A1906-10-02
0821416N/A1906-05-22
0268822N/A1882-12-12
0237901N/A1881-02-15
Foreign References:
GB481991A1938-03-22