Electric heating – Heating devices – Combined with container – enclosure – or support for material...
Patent
1982-07-28
1985-07-23
Envall, Jr., Roy N.
Electric heating
Heating devices
Combined with container, enclosure, or support for material...
219347, 219355, 219358, 219548, 219553, 338268, H05B 344
Patent
active
045310475
ABSTRACT:
An electric heater has an elongated cylindrical quartz tube provided at each end with a terminal and a heater coil having one end connected at each terminal has a helical portion disposed within the tube and extending the length thereof. A ceramic support disposed in the tube extends the length of the helical portion of the coil and is formed with a heat-reflecting longitudinal groove having mutually inclined opposing sides which flank at least a portion of the circumference of the turns of the helical portion. Each of the opposing sides of the groove engage the turns of the helix tangentially in point contact, the support holding the helical portion with the turns thereof in tangential point contact with the inner surface of the tube. Each turn of the helical portion is supported at three separate points.
REFERENCES:
patent: 631360 (1899-08-01), Creveling
patent: 1431407 (1922-10-01), McClatchie
patent: 1652503 (1927-12-01), Sutherland
patent: 2034612 (1936-03-01), Fogg
patent: 2051637 (1936-08-01), Goldbert et al.
patent: 2209832 (1940-07-01), Schurig
patent: 2658984 (1953-11-01), Mohn
patent: 2894107 (1959-07-01), Lefebvre
patent: 2953670 (1960-09-01), Kelley
patent: 3217139 (1965-11-01), Barber
patent: 3303324 (1967-02-01), Appleman
patent: 3335261 (1967-08-01), Siegla et al.
patent: 3461275 (1969-08-01), Poole
patent: 3699309 (1972-10-01), Eck
patent: 3718497 (1973-02-01), Rice
patent: 3846621 (1974-11-01), Roos
patent: 4241292 (1980-12-01), Kreick et al.
patent: 4349727 (1982-09-01), Churchill
Canfield Douglas M.
Gialanella Joseph
Casso-Solar Corporation
Dubno Herbert
Envall Jr. Roy N.
Evans Geoffrey S.
Ross Karl F.
LandOfFree
Clip-mounted quartz tube electric heater does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Clip-mounted quartz tube electric heater, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Clip-mounted quartz tube electric heater will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-635726