Method and device for detection of a blanket or the like being k

Details Method and device for detection of a blanket or the like being k Method and device for detection of a blanket or the like being k

1984-04-09

1986-09-30

Swann, III, Glen R.

Communications: electrical

Condition responsive indicating system

Specific condition

340540, 340568, G08B 2100

Patent

active

046149392

ABSTRACT:
A blanket covers a light-sensing device that is attached to a portion of a sleeping person which is to be protected against cold. A weak light source is furnished. The light-sensing device is electrically connected with an alarm by means of an extension cable, if necessary. Upon the blanket being kicked off, the light-sensing device will be exposed to the weak light source to generate a signal which is passed to a current amplifier for amplification and activation of the alarm.

REFERENCES:
patent: 2908899 (1959-10-01), Crafts
patent: 4411034 (1983-10-01), Williams

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