Electric heating – Heating devices – Combined with container – enclosure – or support for material...
Patent
1976-06-23
1979-05-01
Bartis, A.
Electric heating
Heating devices
Combined with container, enclosure, or support for material...
137341, 138 33, 165181, 219311, 219535, 219536, 219549, 338212, F16L 5300, H05B 100, F28F 1300
Patent
active
041525779
ABSTRACT:
A method for improving the heat transfer between an elongated electric resistance heating element and a pipe on which the heating element is mounted without use of heat transfer cement comprises utilizing a close fitting elongated rigid channel member to directly cover and press into direct contact with the outer surface of the pipe an elongated electric resistance element arranged lengthwise of the pipe. The heating element has a flat pipe contacting surface and comprises parallel resistance wires encased in a resilient electrically insulating sheath. The channel member is coextensive in length with the heating element and is pressed down against the heating element with substantially uniform pressure and contact to ensure that at least about 25% of the heating element is in continuous contact with the surface of the pipe. The channel member and heating element are entirely devoid of heat transfer cement.
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Bartis A.
Rauchfuss, Jr. George W.
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