Electrical resistors – Incased – embedded – or housed – With gaseous or vacuum spacing between element and casing or...
Patent
1989-08-18
1991-03-26
Reynolds, Bruce A.
Electrical resistors
Incased, embedded, or housed
With gaseous or vacuum spacing between element and casing or...
338235, 392407, H01C 1024
Patent
active
050032844
ABSTRACT:
An infrared radiator includes a non-circular jacket tube made of quartz material, which may be quartz glass, the length of which is a multiple of the larger interior diameter and the interior of whch, in a sectional view, is separated into two areas, in each of which a heating wire extends in the direction of the tube axis. The heating wires are electrically conductive and connected to each other at one end of the jacket tube and lead to the exterior via connecting pieces at the other end. Two cross pieces which protrude from the inside wall of the jacket tube face each other and are directed toward the direction of the axis of the jacket tube so as to form the two areas.
REFERENCES:
patent: 1525831 (1925-02-01), Steiner et al.
patent: 1680104 (1928-08-01), Head
Heraeus Quarzschmelze GmbH
Lateef Marvin M.
Reynolds Bruce A.
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