Automatic door closing device

Details Automatic door closing device Automatic door closing device

2006-04-11

2006-04-11

Thompson, II, Hugh B. (Department: 3634)

Movable or removable closures

Time controlled

C049S030000, C049S025000

Reexamination Certificate

active

07024819

ABSTRACT:
A system includes a transmitter, a receiver, and a processor. The processor detects a trigger event. In response to the trigger event, the transmitter transmits a detection signal. If the receiver receives a reflected detection signal, the processor determines that a door is in a first position. Additionally, if the receiver receives a reflected detection signal, the processor signals an opener to move the door to a second position.

REFERENCES:
patent: 4035702 (1977-07-01), Pettersen et al.
patent: 4365250 (1982-12-01), Matsuoka et al.
patent: 4463292 (1984-07-01), Engelmann
patent: 5027553 (1991-07-01), Vergara
patent: 5191268 (1993-03-01), Duhame
patent: 5584145 (1996-12-01), Teich
patent: 5752343 (1998-05-01), Quintus
patent: 5864134 (1999-01-01), Burgess
patent: 5878530 (1999-03-01), Eccleston et al.
patent: 6046562 (2000-04-01), Emil
patent: 6388559 (2002-05-01), Cohen
patent: 6469464 (2002-10-01), McCall
patent: RE37986 (2003-02-01), Heitschel et al.
patent: 6563278 (2003-05-01), Roman
patent: 6634408 (2003-10-01), Mays
patent: 6860065 (2005-03-01), Griffin et al.
patent: 6911898 (2005-06-01), Chung
patent: 6914401 (2005-07-01), Semelka

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