Electrical sleeve heater
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United States of America Patent
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-
Apr 24, 2001
Grant Date -
N/A
app pub date -
May 5, 2000
filing date -
May 6, 1999
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A sleeve heater is made by first cutting in one face of a flat metal plate a continuous groove and then fitting to the groove a heater wire with at least one end of the wire projecting past an edge of the plate. The plate is then plastically deformed with the wire to a tubular shape centered on an axis with the one face directed radially inward. The installation on a body to be heated is completed by fitting the deformed plate over the body to be heated and tightening the plate on the body to grip it snugly. The plate is formed of a heat-conducting metal, for instance brass, copper, or aluminum. The face of the plate from which the wire projects is directed radially inward so the wire directly engages the body. The tightener, which can be a band that circumferentially surrounds the sleeve or fittings provided at edges of the sleeve, bridges edges of the plate.
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