Professional Records
License Records
Max E Oberlin
License #:
89949 - Expired
Issued Date:
May 1, 1974
Expiration Date:
Oct 10, 1990
Type:
Broker
Max Oberlin Phones & Addresses
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Londonderry, NH
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Derry, NH
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28 Catherine Dr, Peabody, MA 01960 (978) 535-6081
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Sarasota, FL
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7 Kendall Pond Rd UNIT 120, Derry, NH 03038
Publications
Us Patents
Ceramic Enveloped Electrical Heating Element
View pageUS Patent:
41032772, Jul 25, 1978
Filed:
Dec 17, 1976
Appl. No.:
5/751660
Inventors:
Robert M. Griffin - South Hamilton MA
Max E. Oberlin - Lynn MA
Robert P. Bonazoli - Hamilton MA
Max E. Oberlin - Lynn MA
Robert P. Bonazoli - Hamilton MA
Assignee:
GTE Sylvania Incorporated - Danvers MA
International Classification:
H01C 1024
US Classification:
338237
Abstract:
An electrical heating element for ovens, furnaces and other infrared light applications comprises an elongate tubular envelope of thermally translucent refractory material such as pure alumina enclosing an elongate coiled refractory metal conductor which is capable of carrying a linear power loading of at least one hundred watts per inch. Refractory spacers along the coiled conductor and envelope hold the conductor spaced from the envelope and coaxial therewith so that the conductor attains heat in excess of the temperature limit of the envelope.