Fluid handling – Ambient condition change responsive – Atmospheric
Patent
1994-11-21
1996-12-17
Look, Edward K.
Fluid handling
Ambient condition change responsive
Atmospheric
454257, 251279, F24F 1306
Patent
active
055843123
ABSTRACT:
A protective damper for controlling the flow of fluid through a ceiling diffuser has a frame defining an opening through which the fluid flows. A barrier has a closed position which prevents the flow of fluid through the opening and an open position which allows fluid flow through the opening. The barrier is restricted to linear movement between the open and closed positions. A spring is operably coupled with a shaft and exerts a bias on the shaft tending to rotate the shaft on its longitudinal axis in one direction. An actuator is operably coupled with the shaft and rotates the shaft about its longitudinal axis in the opposite direction when the actuator is energized. An elongated rigid element is pivotally coupled with the shaft and with the barrier, respectively. The rigid element is for pulling the barrier by the shaft into the closed position when the shaft is rotated in the one direction and for pushing the barrier into the open position when the shaft is rotated by the actuator in the opposite direction.
REFERENCES:
patent: 3346013 (1967-10-01), Reichow
patent: 3580321 (1969-04-01), Root
patent: 3606245 (1969-06-01), Reichow
patent: 3677517 (1972-07-01), Root
patent: 3718081 (1973-02-01), Root
patent: 3738254 (1973-06-01), Root
patent: 3817485 (1974-06-01), Root
patent: 3996952 (1976-12-01), Root
patent: 4366830 (1983-01-01), Van Becelaere
patent: 4397223 (1983-08-01), Maxson
patent: 4432272 (1984-02-01), Van Becelaere
patent: 4559867 (1985-12-01), Van Becelaere
patent: 4610197 (1986-09-01), Van Becelaere
patent: 4800804 (1989-01-01), Symington
patent: 4911065 (1990-03-01), Van Becelaere
patent: 5238220 (1993-08-01), Shell et al.
patent: 5310021 (1994-05-01), Hightower
Lee Michael S.
Look Edward K.
Tomkins Industries Inc.
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