Alarm system

Details Alarm system Alarm system

2006-06-13

2006-06-13

Crosland, Donnie L. (Department: 2612)

Communications: electrical

Condition responsive indicating system

Specific condition

C340S545100, C340S569000

Reexamination Certificate

active

07061377

ABSTRACT:
A door/window/mailbox alarm system comprising a switch, a transmitter unit, a receiver unit and a warning means. A user is reminded to check and close an opened door/window/mailbox by the warning means on the receiver unit which is located away from the door/window/mailbox and in a close proximity to the user's active area such that the user could see or hear a warning signal from the warning means easily. The transmitter unit comprises a timer device that enables the transmitter unit to send out a preset signal every “x” amount of seconds to the receiver saying the door/window/mailbox is still open and serves as a reminder.

REFERENCES:
patent: 4583081 (1986-04-01), Schmitz
patent: 4868543 (1989-09-01), Binkley
patent: 5402105 (1995-03-01), Doyle et al.
patent: 5499014 (1996-03-01), Greenwaldt
patent: 5781107 (1998-07-01), Ji
patent: 5883579 (1999-03-01), Schreiner et al.
patent: 6831558 (2004-12-01), Andrew

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