Metal working – Method of mechanical manufacture – Electrical device making
Patent
1994-02-08
1995-12-05
Echols, P. W.
Metal working
Method of mechanical manufacture
Electrical device making
29848, 29850, 219457, 219464, H05B 300, H05B 368
Patent
active
054717370
ABSTRACT:
A radiant electric heater is manufactured by a method which involves providing a base of microporous thermal and electrical insulation material having a substantially continuous surface, and providing a heating element in the form of an elongate electrically conductive strip. The strip is urged edgewise into the continuous surface of the base of microporous thermal and electrical insulation material so as to embed and support the strip edgewise in the insulation material along substantially the entire length of the strip to a depth corresponding to at least part of the height of the strip.
REFERENCES:
patent: 2570975 (1951-10-01), Osterheld
patent: 3612829 (1971-10-01), Evans et al.
patent: 3986416 (1976-10-01), Wade
patent: 4292504 (1981-09-01), Gebarowski et al.
patent: 4713527 (1987-12-01), Kicherer et al.
patent: 4789773 (1988-12-01), Mikschl
Ceramaspeed Limited
Dorman Ira S.
Echols P. W.
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