Communications: electrical – Condition responsive indicating system – Specific condition
Patent
1999-07-14
2000-08-22
Hofsass, Jeffrey A.
Communications: electrical
Condition responsive indicating system
Specific condition
340575, 340571, 340572, 340573, 340461, 200 52, G08B 2300
Patent
active
061079227
ABSTRACT:
A self-contained head set based sleep or fatigue alarm for a driver of a vehicle contains a set of arms extending from the alarm housing around the driver's head to the area under the driver's lower jaw. Involuntary relaxation of the driver's lower jaw causes rotation of the arms which in turn urges the movable contact against the stationary contact and therefore leads to the completion of the electrical circuit. After a predetermined delay, a buzzer or vibrator is activated to awaken the driver. In another embodiment, two relaxation motions, jaw lowering and head tilting, are used at the same time to trigger the alarm. In a third embodiment, either one of these two relaxation motions is used to trigger the alarm independently thus increasing the sensitivity of the alarm.
REFERENCES:
patent: 2747038 (1956-05-01), Perkovich
patent: 2842628 (1958-07-01), James
patent: 3045225 (1962-07-01), Baldwin
patent: 3054868 (1962-09-01), Phillians
patent: 3999177 (1976-12-01), Greene
patent: 4234051 (1980-11-01), Morris, Jr.
patent: 4259665 (1981-03-01), Manning
patent: 4354179 (1982-10-01), Fourcade
patent: 4359724 (1982-11-01), Zimmerman et al.
patent: 4361834 (1982-11-01), King
patent: 4555697 (1985-11-01), Thackrey
patent: 5353013 (1994-10-01), Estranda
patent: 5402109 (1995-03-01), Mannik
patent: 5522092 (1996-06-01), Streb
patent: 5585785 (1996-12-01), Gwin
patent: 5684461 (1997-11-01), Jones
patent: 5745038 (1998-04-01), Vance
patent: 5841354 (1998-11-01), Bae
Hofsass Jeffrey A.
Leschinsky Boris
Nguyen Tai T.
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