Digital control air heating electric blanket

Details Digital control air heating electric blanket Digital control air heating electric blanket

2005-07-05

2005-07-05

Evans, Robin O. (Department: 3742)

Electric heating

Heating devices

Combined with diverse-type art device

C219S529000, C219S549000

Reexamination Certificate

active

06914216

ABSTRACT:
A digital control wet heating type of electric blanket for heating air, comprised of a mattress containing a tenacious, air permeable cotton cloth consistently paved with hearing wires, cotton strip on the heating wires, a compression strip passing through the cotton fabric to compress the cotton strip on the heating wires, multiple temperature sensors provided between cotton fabric and cotton strip, a temperature protection circuit disposed to the heating wires, signals from sensor and protection circuit being externally connected to a digital control box; and the mattress being sealed and placed into a surface fluffed flannelette cover.

REFERENCES:
patent: 2432785 (1947-12-01), Moberg
patent: 2998502 (1961-08-01), Woodling
patent: 3193664 (1965-07-01), Beery
patent: 3334216 (1967-08-01), Illingworth
patent: 3437792 (1969-04-01), Lauck
patent: 3564203 (1971-02-01), Naoi et al.
patent: 3739142 (1973-06-01), Johns
patent: 3889101 (1975-06-01), Woods
patent: 4106477 (1978-08-01), Feld
patent: 6653607 (2003-11-01), Ellis et al.

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