Occupancy indication device and method

Details Occupancy indication device and method Occupancy indication device and method

2007-03-16

2009-08-11

Johnson, Amy Cohen (Department: 2841)

Signals and indicators

Indicators

Magnetically actuated

C116S307000, C040S459000

Reexamination Certificate

active

07571694

ABSTRACT:
An occupancy indicator for a door, and a method of use, one embodiment comprising a magnet a switching apparatus activatable by a person, a signaling device adapted to indicate one of at least two states, and a biasing mechanism. One embodiment may not be comprised of a magnet but may be comprised of a bolt assembly having a plurality of biasing mechanisms. The magnet or bolt assembly, switching apparatus, signaling device, and biasing mechanism are operatively coupled to automatically provide a signaling device state upon the door opening.

REFERENCES:
patent: 369639 (1887-09-01), Goodhue
patent: 590418 (1897-09-01), Langford
patent: 720871 (1903-02-01), Allen et al.
patent: 747252 (1903-12-01), Smith
patent: 1337401 (1920-04-01), Heberling
patent: 2315102 (1943-03-01), Adams
patent: 2565669 (1951-08-01), Smith
patent: 2586900 (1952-02-01), Alderman
patent: 2623310 (1952-12-01), Raught
patent: 2955368 (1960-10-01), Winsett
patent: 3751088 (1973-08-01), Schlage et al.
patent: 3919869 (1975-11-01), Fromm
patent: 3948067 (1976-04-01), Peterson
patent: 3975724 (1976-08-01), Schultz
patent: 4262507 (1981-04-01), Flack et al.
patent: 4312198 (1982-01-01), Sedley
patent: 4490999 (1985-01-01), Castle et al.
patent: 4559796 (1985-12-01), De Forrest, Sr.
patent: 4854061 (1989-08-01), Khoshkish
patent: 4881335 (1989-11-01), Khoshkish
patent: 4976215 (1990-12-01), Lee et al.
patent: 5235933 (1993-08-01), Pare et al.
patent: 5253908 (1993-10-01), Leonard, III
patent: 5377513 (1995-01-01), Miyamoto et al.
patent: 5608298 (1997-03-01), Frolov et al.
patent: 5861806 (1999-01-01), Vories et al.
patent: 6135512 (2000-10-01), Galvin
patent: 6588811 (2003-07-01), Ferguson
patent: 6615629 (2003-09-01), Bates et al.
patent: 6731200 (2004-05-01), Wagner et al.
patent: 2006/0144103 (2006-07-01), Blanch

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