Electric heating – Heating devices – With power supply and voltage or current regulation or...
Patent
1983-10-24
1987-03-17
Paschall, M. H.
Electric heating
Heating devices
With power supply and voltage or current regulation or...
219549, 219494, 219301, 340642, 340650, 340652, H05B 102
Patent
active
046509712
ABSTRACT:
An optical indicator apparatus includes an optical output device for producing a light output in response to an electrical input thereto, a hollow housing for supporting the optical output device relative to another device to permit viewing of light output by the optical output device, electrical input leads extending through at least a portion of the housing for receiving such electrical input and coupling the same to cause the optical output device to produce an output indicating receipt of such electrical input, and seal material for sealing in substantially fluid-tight relation in the hollow housing at least part of the optical output device and at least part of the electrical input leads while holding the same in relatively fixed position in the hollow housing. A method of identifying the energized condition of an electrical device, such as heat trace cable or the like, includes mounting a plurality of indicators with respect to such heat trace cable or the like at a plurality of locations along the length thereof and electrically connecting such indicators thereto for energization in response to power received at such connection thereof, whereby failure of energization of such an indicator represents a failure in the energization of such heat trace cable or the like.
REFERENCES:
patent: 839690 (1906-12-01), Zapf
patent: 2287109 (1942-06-01), Kollath
patent: 2609432 (1952-09-01), Steen
patent: 2611008 (1952-09-01), Wilcock et al.
patent: 3069538 (1962-12-01), Hobson
patent: 3116480 (1963-12-01), Fernquist
patent: 3321730 (1967-05-01), Schlangen
patent: 3686531 (1972-08-01), Decker et al.
patent: 3727123 (1973-04-01), Smith
patent: 3851149 (1974-11-01), Daley
patent: 4066870 (1978-01-01), Colten
patent: 4110683 (1978-08-01), Cason et al.
patent: 4170004 (1979-10-01), Portinaro
patent: 4314140 (1982-02-01), Hughes
Manecci John V.
Pajer Jerry D.
Paschall M. H.
PGM, Inc.
LandOfFree
Energization indicator and method for heat trace cable and the l does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Energization indicator and method for heat trace cable and the l, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Energization indicator and method for heat trace cable and the l will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1789719