Electric resistance heating devices – Heating devices – Immersion heater details
Patent
1996-12-16
1999-07-27
Walberg, Teresa
Electric resistance heating devices
Heating devices
Immersion heater details
392500, 219523, 219544, H05B 378, H05B 328
Patent
active
059304596
ABSTRACT:
Electrical resistance heating elements are provided which are useful in heating fluid mediums, such as air and water. The heating elements include an element body having a supporting surface and a resistance wire wound onto the supporting surface which is connected to a pair of terminal end portions. Disposed over the resistance wire, and over most of the supporting surface, is a thermally-conductive polymeric coating which hermetically encapsulates and electrically insulates the resistance wire from the fluids to be heated. This thermally-conductive polymer coating has a thermal conductivity value of at least about 0.5 W/m .degree.K. Improved properties are preferably provided by ceramic powder, such as Al.sub.2 O.sub.3 and MgO, and glass fiber additives.
REFERENCES:
patent: 1043922 (1912-11-01), Gold
patent: 2146402 (1939-02-01), Morgan
patent: 2846536 (1958-08-01), Drugmand
patent: 3614386 (1971-10-01), Hepplewhite
patent: 3621566 (1971-11-01), Welsh
patent: 3683361 (1972-08-01), Salzwedel
patent: 3860787 (1975-01-01), Strobach
patent: 3927300 (1975-12-01), Wada et al.
patent: 3943328 (1976-03-01), Cunningham
patent: 3952182 (1976-04-01), Flanders
patent: 4272673 (1981-06-01), Semanaz et al.
patent: 4326121 (1982-04-01), Welsby et al.
patent: 4354096 (1982-10-01), Dumas
patent: 4436988 (1984-03-01), Blumenkranz
patent: 4617456 (1986-10-01), Richards
patent: 4687905 (1987-08-01), Cunningham et al.
patent: 4707590 (1987-11-01), Lefebvre
patent: 5013890 (1991-05-01), Gamble
patent: 5129033 (1992-07-01), Ferrara et al.
patent: 5155800 (1992-10-01), Rezabek et al.
patent: 5159659 (1992-10-01), Cameron
patent: 5305419 (1994-04-01), Cameron
patent: 5371830 (1994-12-01), Wachenheim
patent: 5586214 (1996-12-01), Eckman
"Polymers", Guide to Selecting Engineered Materials, a special issue of Advanced Materials & Processes, Metals Park, OH, ASM International, 1989, pp. 92-93.
"Makroblend Polycarbonate Blend, Tedur Polyphenylene Sulfide", Machine Design: Basics of Design Engineering, Cleveland, OH, Penton Publishing, Inc., Jun. 1991, pp. 820-821, 863, 866-867.
Eckman Charles M.
Hochberg Arie
Roden James S.
Campbell Thor S.
Energy Converters, Inc.
Rheem Manufacturing Co
Walberg Teresa
LandOfFree
Immersion heating element with highly thermally conductive polym does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Immersion heating element with highly thermally conductive polym, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Immersion heating element with highly thermally conductive polym will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-889257