Damper device

Details Damper device Damper device

1994-04-20

1996-08-13

Schwadron, Martin P.

Valves and valve actuation

Permanent or constantly energized magnet actuator

25112901, F16K 3108

Patent

active

055448534

ABSTRACT:
The present invention relates to a damper device adapted for controlling the flow of cooled air in freezing machines, refrigerators and air conditioners. The damper device according to one preferred embodiment includes a damper casing having a damper opening of a predetermined size, an opening/closing member slidable in the damper casing for opening/closing the damper opening, a guide mechanism provided at both sides of the opening/closing member, an electromagnet fixed at an end of the opening/closing member having coils therearound, a permanent magnet fixed to one side of the damper casing, and a plurality of elastic members along the inner wall of the damper casing for elastically supporting the opening/closing member.

REFERENCES:
patent: 3203628 (1965-08-01), Schoch
patent: 4559971 (1985-12-01), Bradshaw
patent: 4681298 (1987-07-01), Bodine et al.
patent: 4690371 (1987-09-01), Bosley et al.

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