Electric heating – Heating devices – Combined with container – enclosure – or support for material...
Patent
1988-06-13
1989-09-05
Pellinen, A. D.
Electric heating
Heating devices
Combined with container, enclosure, or support for material...
55208, 55269, 55316, 55387, 123519, 123549, 219202, 219504, 219505, B01D 5100
Patent
active
048641030
ABSTRACT:
A cover for an automotive vapor canister has a heat-spreading member heated by a self-regulating electrical resistance heater of positive temperature coefficient of resistivity for heating air which is periodically introduced into the canister for purging the canister. The cover has a first cover of thermally insulating material defining a thin inner air flow path section to pass air being introduced into the canister over the heat-spreading member for transferring heat to the air and to receive additional heat within the first cover and has a second cover of thermally insulating material defining a thin outer air flow path section overlying and connected with the inner air flow path section to pass the air over the first cover prior to being advanced into the inner flow path section for withdrawing said additional heat from the first cover to preheat the air and improve air heating efficiency.
REFERENCES:
patent: 3476293 (1969-11-01), Marcoux
patent: 4108125 (1978-08-01), Marcoux
patent: 4193383 (1980-03-01), Rogers
patent: 4206645 (1980-06-01), Orcutt
patent: 4406785 (1983-09-01), Siefer
patent: 4473054 (1984-09-01), Marcoux et al.
patent: 4598686 (1986-07-01), Lupoli et al.
Berg Peter G.
Bishop Robert P.
Offiler Stephen B.
Gaffin Jeffrey A.
Haug John A.
McAndrew James P.
Pellinen A. D.
Sharp Melvin
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