Stoves and furnaces – Stove hoods
Patent
1984-05-21
1988-11-15
Jones, Larry
Stoves and furnaces
Stove hoods
126299R, 126299D, 744248NA, 55DIG36, F21C 1520
Patent
active
047841141
ABSTRACT:
A cooking or ventilating system has an extraction unit connected through an exhaust duct with the outside atmosphere, and a damper which is shiftable between positions operatively opening or closing the exhaust duct. A mechanism for opening and closing the damper under power includes an electric motor and a ball screw linear actuator driven by the motor. Air flow through the system is controlled to prevent exhausted grease from being carried up the exhaust duct. The damper is mounted for closing in the direction of air flow through the system and, when opened, for shielding the drive mechanism from smoke and grease, etc., in the air flow. Control circuits provide automatically timed normal operation of the motor as well as control operation of detergent and spray wash apparatus of the ventilating system. The control circuits also include a thermosatic sensor arrangement for sensing temperatures within the extraction unit. In the event of a fire, the damper is closed by automatically initiated operation of the motor and water spray through the spray wash apparatus is initiated.
REFERENCES:
patent: 2739491 (1956-03-01), Russell
patent: 2813477 (1957-11-01), Gaylord
patent: 2961941 (1960-11-01), Graswich et al.
patent: 2971452 (1961-02-01), Graswich et al.
patent: 3065687 (1962-11-01), Graswich et al.
patent: 3566585 (1971-03-01), Voloshen et al.
patent: 3785124 (1974-01-01), Gaylord, II.
patent: 3834135 (1974-09-01), Jordan
patent: 4050446 (1977-09-01), Giuffre
patent: 4066064 (1978-01-01), Vandas
patent: 4103676 (1978-08-01), Kastner
patent: 4273097 (1981-06-01), Szwartz
Muckler Frank
Vandas Edward B.
Jones Larry
Muckler Richard F.
Price Carl D.
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