Tightenable electrical sleeve heater
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Oct 5, 1999
Grant Date -
N/A
app pub date -
Jun 5, 1998
filing date -
Oct 21, 1997
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An electrical heater for heating an object having a generally cylindrical outer surface has a helicoidal coil having a plurality of turns centered on an axis and inner and outer ends and adapted to fit around the object in contact with the outer surface thereof. A source of electricity is connected to the inner end for supplying electricity thereto and thereby heating the coil. An anchor fixed on one of the turns adjacent the outer end is connected to an element extending to the anchor for drawing the outer end and anchor together and thereby reducing an inside diameter of at least an outer turn of the coil and tightening the outer turn around the object around which the coil is fitted.
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Family
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Cited Art Landscape
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