Next Generation Bare Wire Water Heater
First Claim
1. A heating unit comprising:
- a tube having a flange and at least one indexed groove located along a length of the cylindrical tube and forming a continuous recession across a circumference of the cylindrical tube, wherein the at least one indexed groove contains a retention clip; and
at least one electrical resistance heating element positioned outside the indexed grooves and having a first end connected to the tube via the flange and a second end connected to the tube via the retention clip.
2 Assignments
0 Petitions
Accused Products
Abstract
A heating unit for heating fluid is described having at least one electrical resistance heating element on an outer surface of a tube. At least one indexed groove is provided around a surface of the tube allowing for at least one retention clip to hold the electrical resistance heating element. A heating chamber is also provided to enclose a portion of the tube and to provide a flow channel therebetween. The heating chamber includes an optical sensor to detect overheating of the at least one electrical resistance heating element. Fluid is heated by flowing over the surface of the at least one electrical resistance heating element and through the tube.
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Citations
1 Claim
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1. A heating unit comprising:
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a tube having a flange and at least one indexed groove located along a length of the cylindrical tube and forming a continuous recession across a circumference of the cylindrical tube, wherein the at least one indexed groove contains a retention clip; and at least one electrical resistance heating element positioned outside the indexed grooves and having a first end connected to the tube via the flange and a second end connected to the tube via the retention clip.
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Specification