Title:
Forced air, fuel fired heater with scroll enclosed multiple annular heat transfer element
United States Patent 2564257


Inventors:
Herbster, George B.
Application Number:
US78745547A
Publication Date:
08/14/1951
Filing Date:
11/21/1947
Assignee:
8600 DENISON COMPANY
Primary Class:
Other Classes:
165/125
International Classes:
F24H3/06
View Patent Images:
US Patent References:
1884898Air circulating and temperature changing unit1932-10-25
1877905N/A1932-09-20
Foreign References:
GB185531A1922-09-14
GB307161A1929-03-07
FR530879A1922-01-03