Movable or removable closures – With traffic director or controller; e.g. – one-way
Reexamination Certificate
2005-07-26
2005-07-26
Redman, Jerry (Department: 3634)
Movable or removable closures
With traffic director or controller; e.g., one-way
C307S066000
Reexamination Certificate
active
06920718
ABSTRACT:
A system is disclosed for providing a backup power supply for a security gate system. In a preferred embodiment it includes a primary power supply, an AC motor and an auxiliary DC motor that share the same accessory devices including controller, movement mechanism, sensors, communication unit, etc. The auxiliary DC motor has its own independent DC power supply. If the primary power supply fails the auxiliary power supply takes over and moves the barrier between the open and closed positions as needed without interruption of service.
REFERENCES:
patent: 3950686 (1976-04-01), Randall
patent: 4423364 (1983-12-01), Kompelien et al.
patent: 4490624 (1984-12-01), Luker
patent: 4630395 (1986-12-01), Nasatka
patent: 4711608 (1987-12-01), Ghusn
patent: 4904880 (1990-02-01), Yoshida
patent: 5144153 (1992-09-01), Scheppmann, II
patent: 6847130 (2005-01-01), Belehradek et al.
patent: 2003/0029089 (2003-02-01), Wenzl et al.
patent: 2003/0052627 (2003-03-01), Raimondi
Hom Wayne C.
Parsadayan Walter
Perez Daniel
Fitch Even Tabin & Flannery
Redman Jerry
The Chamberlain Group, Inc.
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