Communications: electrical – Condition responsive indicating system – Specific condition
Patent
1996-06-06
1998-01-27
Swarthout, Brent A.
Communications: electrical
Condition responsive indicating system
Specific condition
340551, 340941, 32420716, 32420724, G08B 1308
Patent
active
057126216
ABSTRACT:
A security system that includes an inductive sensor commonly known as a "proximity sensor" or "variable reluctance sensor", an alarm unit, and a controller that allows a user to position the movable structure on which the sensor is mounted, e.g., a door or window, at a selected position and then arm the security system with the structure in that position to detect movement of the structure away from the selected position. For example, the user may open a window on which the sensor is mounted and then arm the alarm to trigger upon detection of movement of the window from that position or, alternatively, only upon detection of further opening of the window or, alternatively, only upon detection of closing of the window. A user could thus open a window a small, selected amount to admit fresh air without triggering the security system or open a door a small, selected amount to receive a caller or allow pets to enter or leave the premises without triggering the security system.
REFERENCES:
patent: 3087145 (1963-04-01), Fruh
patent: 3233054 (1966-02-01), Shoffstall
patent: 3967262 (1976-06-01), Reich et al.
patent: 4030089 (1977-06-01), Wurfel
patent: 4092636 (1978-05-01), Shepherd, Jr.
patent: 4209777 (1980-06-01), Morrison
patent: 4438430 (1984-03-01), Young et al.
patent: 4647910 (1987-03-01), Torre
patent: 4658241 (1987-04-01), Torre
patent: 4672230 (1987-06-01), Spahn
patent: 4864288 (1989-09-01), Cross
patent: 4999608 (1991-03-01), Galomb
patent: 5007199 (1991-04-01), Dunagan et al.
patent: 5012206 (1991-04-01), Tigges
patent: 5107211 (1992-04-01), Rose
patent: 5111139 (1992-05-01), Rose
patent: 5164705 (1992-11-01), Dunagan et al.
patent: 5331277 (1994-07-01), Burreson
patent: 5376921 (1994-12-01), Trikilis
patent: 5469054 (1995-11-01), Bicking
patent: 5489888 (1996-02-01), Jagiella et al.
patent: 5504425 (1996-04-01), Fericean et al.
patent: 5534849 (1996-07-01), McDonald et al.
Swarthout Brent A.
Trieu Van T.
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