Bi-directional connections for daisy-chained dampers

Details Bi-directional connections for daisy-chained dampers Bi-directional connections for daisy-chained dampers

2006-04-11

2006-04-11

Lu, Jiping (Department: 3749)

Ventilation

Having inlet airway

Including automatic control means

C236S049300, C137S614110

Reexamination Certificate

active

07025672

ABSTRACT:
A damper unit for an air circulation system. The damper unit includes an air flow opening, a damper vane for opening and closing the air flow opening, and a motor for moving the damper vane between the open and closed positions. The damper also includes at least two ports, each port being operable in an input and an output mode. When a control signal is received on one port, the signal is sent out on the other port, and vice versa. The ports can be identical in shape to receive the same shaped plug.

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patent: 0632234 (1995-01-01), None
“Small Precision Motors—PM42L-048,”Minebea Electronics Co., Ltd., 1 pg. (©2001-2002).

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