Motor-operated damper device

Details Motor-operated damper device Motor-operated damper device

2005-04-12

2005-04-12

Look, Edward K. (Department: 3751)

Valves and valve actuation

Electrically actuated valve

Rotary electric actuator

C251S157000, C251S284000, C251S298000

Reexamination Certificate

active

06877716

ABSTRACT:
A motor-operated damper device includes a baffle driving device equipped with a motor, a baffle that is driven by the baffle driving device, a frame defining an opening section that is closed and opened by the baffle, the opening section having a peripheral edge section, and a buffer member that is attached to the baffle and that resiliently deforms and contacts the peripheral edge section of the opening section when the opening section is closed by the baffle. A detent torque of the motor is used to maintain a stopping state in which the buffer member is resiliently deformed to provide a close contact with the peripheral edge section of the opening section. The motor-operated damper device includes a stopper that allows an appropriate amount of elastic deformation of the buffer member and yet prevents the peripheral edge section of the opening section from excessively sinking into the buffer member.

REFERENCES:
patent: 5876014 (1999-03-01), Noritake et al.
patent: 5975051 (1999-11-01), Yamada et al.
patent: 6069466 (2000-05-01), Noritake et al.
patent: 06-109354 (1994-04-01), None
patent: 09-264652 (1997-10-01), None

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