Portable door signal

Details Portable door signal Portable door signal

1983-09-26

1985-07-16

Groody, James J.

Communications: electrical

Systems

Portable self-contained

200 6162, G08B 2300

Patent

active

045299625

ABSTRACT:
A portable door signal apparatus is provided and consists of a thin flexible insulating strap having a removably mounted housing with a battery and signaling device at top of one end with a push button switch mounted to top of other end. The push button switch is operatively connected to the battery and signaling device. The strap is bent around the edge of the door and held against the door so that a person can activate the push button on one side of the door to operate the signaling device on the other side of the door.

REFERENCES:
patent: 1464788 (1923-08-01), Wakefield
patent: 1892073 (1932-12-01), Nicholas
patent: 1900906 (1933-03-01), Brown
patent: 2136677 (1938-11-01), Doeppel
patent: 2350413 (1944-06-01), Ordman
patent: 3327300 (1967-06-01), Birrenkett
patent: 3824576 (1974-07-01), Pioch
patent: 4012731 (1977-03-01), Solomon

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