Thermal limiter

Details Thermal limiter Thermal limiter

1984-10-15

1986-12-23

Goldberg, E. A.

Electric heating

Heating devices

Combined with container, enclosure, or support for material...

337394, 219512, H05B 372

Patent

active

046313907

ABSTRACT:
A thermal limiting device for controlling one or more sources of infra-red radiation, preferably tungsten-halogen lamps, mounted in heating apparatus, consists of a metallic wire arranged to de-energize the sources when it is subjected to a predetermined temperature. The wire is accommodated within a quartz tube, which selectively transmits and absorbs infra-red radiation of different wavelengths. An infra-red reflective coating is applied either to the wire or to the inner surface of the quartz tube to prevent infra-red radiation transmitted through the quartz tube from reaching the wire, while infra-red radiation of a particular wavelength, which is absorbed by the quartz tube, heats the wire by thermal conduction and convection, so that the limiter is primarily responsive to radiation only of that particular wavelength.

REFERENCES:
patent: 2469801 (1949-05-01), Vogel et al.
patent: 2799748 (1957-07-01), Stump
patent: 2816200 (1957-12-01), Mudge
patent: 2836698 (1958-05-01), Fry
patent: 2910605 (1959-10-01), Hodge
patent: 3355574 (1967-11-01), Bassett et al.
patent: 3364378 (1968-01-01), Beesley
patent: 3663798 (1972-05-01), Speidal et al.
patent: 3732518 (1973-05-01), Them et al.
patent: 3735185 (1973-05-01), Bonazoli et al.
patent: 4135081 (1979-06-01), Fischer
patent: 4350875 (1982-09-01), McWilliams
Electrovac Brochure, Electrovac Gesellschaft m.b.H., Rampengrasse 5, A-1194, Wien, Austria, 1/1984.
New Product Bulletin, Thermo-Disc, Incorporated, Mansfield, OH, 7/25/83.

Affiliated with

Also associated with

Rating

Thermal limiter does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Thermal limiter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Thermal limiter will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-172785