Adjustable alarm device for sliding doors and windows

Details Adjustable alarm device for sliding doors and windows Adjustable alarm device for sliding doors and windows

2005-09-13

2005-09-13

Mullen, Thomas (Department: 2632)

Communications: electrical

Condition responsive indicating system

Specific condition

C340S693500

Reexamination Certificate

active

06943686

ABSTRACT:
An adjustable alarm device for windows and doors is installed between the door or window frame and the door or window sash. The longitudinal axis of the alarm device is preferably horizontal. When engaged, movement of the door or window in an open direction will activate the alarm. The body of the alarm device is elongate, tubular and telescoping. The body comprises an outer tube that receives an inner tube. The body of the alarm device may be locked in an extended position by way of a cam mounted on the inner tube and positioned within the body so that when the inner and outer tubes of the body are twisted about their longitudinal axis, the cam body will engage the inner surface of the outer tube in a releasable frictional locking engagement. The alarm device is coupled to one end of the inner tube.

REFERENCES:
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patent: 4358758 (1982-11-01), Morton
patent: 4442427 (1984-04-01), Morton
patent: 4472709 (1984-09-01), White
patent: 4553134 (1985-11-01), Holt
patent: 4607253 (1986-08-01), Wooten et al.
patent: 4837557 (1989-06-01), Striebel
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patent: 6388572 (2002-05-01), Salter
patent: 6417770 (2002-07-01), Sturznickel
patent: 2188676 (1987-10-01), None

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