Electric heating – Heating devices – Combined with container – enclosure – or support for material...
Patent
1983-01-03
1985-10-22
Envall, Jr., Roy N.
Electric heating
Heating devices
Combined with container, enclosure, or support for material...
219386, 219371, 219375, F27D 1100, F24H 304, H05B 100
Patent
active
045490724
ABSTRACT:
A proofing or heating cabinet is provided having an enclosure with an interior and a pair of oppositely disposed side walls forming elongate heat ducts therein; the heat ducts having openings in their mutually facing surfaces. A modular heating assembly is removably disposed in the enclosure and has aligned end openings communicating with the heat ducts. Placed within the modular heating assembly at one end opening thereof is an electric heating element extending substantially thereacross, and at the other end thereof a blower device substantially extending thereacross to maintain generally laminar the airflow through the modular assembly.
REFERENCES:
patent: 1171059 (1916-02-01), Loguin
patent: 2172059 (1939-09-01), Chilton
patent: 2318027 (1943-05-01), Sykes
patent: 2396455 (1946-03-01), Booth
patent: 3199579 (1965-08-01), Foster
patent: 3861378 (1975-01-01), Rhoads
patent: 3895215 (1975-07-01), Gordon
patent: 4030476 (1977-06-01), Hock
patent: 4401883 (1983-08-01), Watson
Brist Kenneth
Klein Robert D.
Envall Jr. Roy N.
Hoffman John F.
Jeffers Albert L.
Lincoln Manufacturing Company, Inc.
Walberg Teresa J.
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