Electric heating – Heating devices – Combined with container – enclosure – or support for material...
Patent
1986-05-05
1988-01-12
Goldberg, E. A.
Electric heating
Heating devices
Combined with container, enclosure, or support for material...
219400, 219411, H05B 362, F27D 704
Patent
active
047193328
ABSTRACT:
A conveyor oven including an insulated housing having entry and exit openings, an endless open mesh conveyor having its upper run extending through the entry and exit openings and its lower run extending below the housing, an A.C. motor for driving the conveyor, a partition dividing the housing into first and second chambers, a heating element in the first chamber, a fan mounted on the housing and having its outlet in communication with the first chamber and having its inlet in communication with the second chamber, a deflector in the first chamber for directing air from the fan outlet toward the heating element and the conveyor, a lowermost portion on the partition for causing the air to be directed at the conveyor before passing into the second chamber for entry into the fan inlet, a first control arrangement for causing the conveyor to move in precisely timed increments through the housing and to have variable pause times between increments to thereby vary the time of conveyor passage through the housing, and a second control arrangement for varying the temperture in the housing by varying the length of time the heating element is energized at full power.
REFERENCES:
patent: 2391195 (1945-12-01), Ross
patent: 2504110 (1950-04-01), Davis
patent: 2669068 (1954-02-01), Wambreuze
patent: 3539316 (1970-11-01), Trethewey
patent: 3869249 (1975-03-01), Frische
patent: 3947241 (1976-03-01), Caridis
patent: 4333003 (1982-06-01), Rivera
patent: 4486172 (1984-12-01), Dunning
Goldberg E. A.
Strategic Products, Inc.
Walberg Teresa J.
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