Combined writing and signaling instrument

Details Combined writing and signaling instrument Combined writing and signaling instrument

1987-03-24

1988-08-09

Schreyer, Stafford D.

Telephonic communications

Supervisory or control line signaling

Substation originated

379361, 379110, 340384E, H04M 150

Patent

active

047633557

ABSTRACT:
The present invention provides a pen or mechanical pencil capable of producing telephonic sound tones. A housing is equipped with either ink and ink dispensing means or pencil lead and lead dispensing means. An electronic memory/logic circuit is placed within the housing and is connected to a speaker which generates and transmits audible tones. A battery or batteries within the housing provides power and a switch completes the circuit and actuates tone generation.

REFERENCES:
patent: 4130738 (1978-12-01), Sandstedt
patent: 4335377 (1982-06-01), Bostic
patent: 4337460 (1982-06-01), Smith, III et al.
patent: 4459474 (1984-07-01), Walton

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