Damper actuator for a ventilation system

Details Damper actuator for a ventilation system Damper actuator for a ventilation system

1975-05-30

1977-11-01

Ostrager, Allen M.

Power plants

Motor operated by expansion and/or contraction of a unit of...

Mass is a solid

98 40VT, F03G 706

Patent

active

040559548

ABSTRACT:
A damper actuator for use in a ventilation system typically used in an air conditioning system to activate the damper or damper assembly in response to an electrical signal. More particularly, a heat motor rotatably coupled at one end to a lever or lever assembly and rotatably coupled at its other end to a stationary frame. A spring may also be coupled to the lever or lever assembly and to the frame when necessary to provide a force to return the lever or lever assembly to its initial position or configuration. By means of a rotatable coupling at each end of the heat motor, stresses transverse to the longitudinal axis of the heat motor, are substantially eliminated and the operational life of the heat motor is significantly increased.

REFERENCES:
patent: RE22870 (1947-04-01), Peple, Jr.
patent: 1783574 (1930-12-01), Lawler
patent: 2117529 (1938-05-01), Wile et al.
patent: 2380935 (1945-08-01), Boyle
patent: 3029595 (1962-04-01), Sherwood
patent: 3836073 (1974-09-01), Evans

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