Communications: electrical – Condition responsive indicating system – Specific condition
Patent
1999-11-01
2000-11-28
Hofsass, Jeffery A.
Communications: electrical
Condition responsive indicating system
Specific condition
340576, 3405736, 340689, 340571, 340439, G08B 2300
Patent
active
061541419
ABSTRACT:
A sleep alert apparatus adapted to be worn upon the head of the operator of a transportation vehicle includes a baseball-type cap, a flexible pouch attached to the exterior surface of a side portion of the cap, and having an upwardly directed entrance opening, and a tilt monitoring device removably insertable into the pouch. The tilt monitoring device includes a housing confining a gravity activated switch, a noise generator, and a battery power source.
REFERENCES:
patent: 3999177 (1976-12-01), Greene
patent: 4272764 (1981-06-01), Herr et al.
patent: 5522092 (1996-06-01), Streb et al.
patent: 5684461 (1997-11-01), Jones
patent: 5845987 (1998-12-01), Painter
patent: 5923263 (1999-07-01), Rodriguez
Prater Charles B.
Vaught E. Clifford
Hofsass Jeffery A.
Nguyen Hung
Rainer Norman B.
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