Electrical heating pad
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Nov 29, 1988
Grant Date -
N/A
app pub date -
Jan 7, 1987
filing date -
May 7, 1985
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An electrical heating pad, in particular a mattress to be placed under a patient during surgery, comprising a number of partially overlapping resistor elements (11-18). The foil elements cover different regions of the pad and are positioned in an overlapping configuration such that in substantially all portions of the pad there are at least two overlapping foil element parts. Each foil element is fed separately from control circuitry so as to maintain a uniform temperature at all portions of the pad, irrespective of the heating load at different portions.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
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