Communications: electrical – Condition responsive indicating system – Specific condition
Patent
1980-01-14
1981-06-09
Waring, Alvin H.
Communications: electrical
Condition responsive indicating system
Specific condition
340576, G08B 2100
Patent
active
042727642
ABSTRACT:
Self contained head mountable sleep inhibiting device comprising a container having two interfitting parts for housing the electrical and mechanical components of the device and employing an L-shaped clamp member pivotally mounted at the intersection of the legs of the clamp on a corner of the housing. The clamp firmly grips the stem of glasses or the rim or band of a hat for ease in mounting the device on a user.
REFERENCES:
patent: 2713159 (1955-07-01), Morrison
patent: 2910679 (1959-10-01), Baldwin
patent: 3076186 (1963-01-01), Greene
patent: 3208062 (1965-09-01), Gregory
patent: 3906478 (1975-09-01), Smey
patent: 3999177 (1976-12-01), Greene
Elmore Austin E.
Herr Myron R.
Lindsley Warren F. B.
Miller Oliver A.
Waring Alvin H.
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