Movable or removable closures – With traffic director or controller; e.g. – one-way
Reexamination Certificate
2007-11-06
2010-10-26
Mitchell, Katherine W (Department: 3634)
Movable or removable closures
With traffic director or controller; e.g., one-way
Reexamination Certificate
active
07818920
ABSTRACT:
Disclosed is an apparatus for a barrier gate designed to control vehicular travel through a passageway. The invention disclosed employs a barrier arm, a housing, a motor and transmission, a rotary encoder, and a torque limiter assembly. The torque limiter assembly comprises a hub, spindle, brake disk, rotor, and a gland nut. The torque limiter assembly is mounted to the motor and transmission as well as connected to the barrier arm. The torque limiter assembly provides sufficient friction to rotate the barrier arm and also protects the internal gears and linkages of the transmission and motor from costly repair/replacement by preventing any unwanted rotation. In the event an outside force rotates the barrier arm, the rotary encoder in cooperation with a controller instantly recognizes the position of the barrier arm and further acts as a limit switch to send a signal to the motor to stop when the barrier arm is in place.
REFERENCES:
patent: 438620 (1890-10-01), Gillette
patent: 1654606 (1928-01-01), Sawyer
patent: 1952641 (1934-03-01), Vincent
patent: 2228909 (1941-01-01), Glowka
patent: 3069118 (1962-12-01), Bernard
patent: 4101235 (1978-07-01), Nelson
patent: 4227344 (1980-10-01), Poppke
patent: 4232484 (1980-11-01), Buchmann
patent: 5823705 (1998-10-01), Jackson et al.
patent: 6179517 (2001-01-01), Nelson
patent: 6312188 (2001-11-01), Ousterhout et al.
patent: 6487818 (2002-12-01), Hamann et al.
patent: 6796084 (2004-09-01), Gagnon
patent: 6896443 (2005-05-01), Ousterhout et al.
patent: 7062879 (2006-06-01), Wenzl et al.
patent: 7065923 (2006-06-01), Parsadayan et al.
patent: 7125197 (2006-10-01), Krewson et al.
patent: 7195419 (2007-03-01), Gelfand
patent: 7210873 (2007-05-01), Gelfand
patent: 7263803 (2007-09-01), Herwich et al.
patent: 7367746 (2008-05-01), Hosokawa
patent: 2002/0109131 (2002-08-01), Smith et al.
patent: 2003/0029090 (2003-02-01), Gillingham
patent: 2004/0182005 (2004-09-01), Basio
patent: WO/2006083429 (2006-08-01), None
Causey Lynn R.
Causey Roger D.
Kelly Catherine A
Mitchell Katherine W
Schultz & Associates P.C.
LandOfFree
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