Electric heating – Microwave heating – Tunnel furnace
Patent
1988-07-11
1989-09-26
Joyce, Harold
Electric heating
Microwave heating
Tunnel furnace
98 4001, 219400, F24F 13068
Patent
active
048691550
ABSTRACT:
An airflow distribution system for discharging air from a thin plenum chamber into a relatively larger space such as the work chamber of an industrial oven. A distribution plate separating the chambers has discharge openings arranged in pairs, having diagonally oriented louvers sufficiently closely spaced to direct individual air streams toward one another where they combine as a resultant air stream flowing transversely outwardly from the distribution plate. The louvers are illustrated as circular or rectangular tabs partly punched from the plate in forming the discharge openings and are adjustable by bending to vary the direction and volume of the resultant air streams. The example disclosed is an industrial oven.
REFERENCES:
patent: 3452447 (1969-07-01), Gardner
patent: 3570385 (1971-03-01), Heisterkamp
patent: 3823488 (1974-07-01), Houben et al.
patent: 3957187 (1976-05-01), Puigrodon
patent: 3979038 (1976-09-01), Karlsson
patent: 4085522 (1978-04-01), Stroszynski
patent: 4501553 (1985-02-01), Imose et al.
patent: 4726285 (1988-02-01), Kelley
Photo No. 225-Grieve-Hendry Co., Inc.
Photo No. 434-The Grieve Corporation.
Photo No. 501-The Grieve Corporation.
"Grieve Ovens and Furnaces", General Catalog of The Grieve Corporation.
Joyce Harold
The Grieve Corporation
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