Alarm system for indicating the removal of plug from a receptacl

Details Alarm system for indicating the removal of plug from a receptacl Alarm system for indicating the removal of plug from a receptacl

1996-11-01

1998-02-03

Hofsass, Jeffery

Communications: electrical

Condition responsive indicating system

Specific condition

340687, 340568, 340571, 340691, 340693, G08B 2100

Patent

active

057149429

ABSTRACT:
An alarm system for indicating the removal of a plug from a receptacle including an alarm adapted to actuate upon the receipt of an activation signal. Further provided is an actuation mechanism coupled between a power source and the alarm having a first orientation when a conventional plug is properly inserted within associated prong apertures of the electrical receptacle for precluding the transmission of the activation signal. The actuation mechanism further has a second orientation when a conventional plug is removed from the associated prong apertures of the electrical receptacle for allowing the transmission of the activation signal.

REFERENCES:
patent: 3192518 (1965-06-01), Sliman
patent: 3484775 (1969-12-01), Cline
patent: 4002397 (1977-01-01), Wang et al.
patent: 4028691 (1977-06-01), Zeder
patent: 4037223 (1977-07-01), Tucci et al.
patent: 4157542 (1979-06-01), Smith
patent: 4195290 (1980-03-01), Magil et al.
patent: 5418521 (1995-05-01), Read

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