H - Electricity – 05 – B
Patent
H - Electricity
05
B
26/123, 123/199
H05B 3/44 (2006.01) B22F 7/08 (2006.01) B23P 15/00 (2006.01) F23Q 7/00 (2006.01) H05B 3/48 (2006.01)
Patent
CA 1095221
ELECTRIC HEATER AND METHOD OF MAKING Abstract of the Disclosure A sheathed electric heater for use as an engine glow plug or the like is formed by providing a closed end metal sheath, installing a centered electric heating element that approaches the sheath closed end, adding a small amount of sinterable metal powder covering the end of the heating element at the closed end of the sheath, filling the remaining volume around the element with granular electrical insulating material, swaging the assembly to reduce its diameter, extend its length and compact the insulation, and sintering the metal powder by passing electric current therethrough to provide a low resis- tance electrical connection between the heating coil and the closed end of the sheath.
313147
General Motors Corporation
Gowling Lafleur Henderson Llp
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