Electric heating – Heating devices
Patent
1980-08-21
1982-12-21
Envall, Jr., Roy N.
Electric heating
Heating devices
219201, 219443, 219449, H05B 103
Patent
active
043651380
ABSTRACT:
A flat plate of thermally conductive material, such as aluminum, has mounting holes for connecting it on one side on a support and on the other side to an instrument which is to be thermally stabilized. The plate is internally traversed by a heating wire and is recessed near one of its edges to provide a platform on which temperature-sensing control elements such as a thermostat, a heat limiter and an alarm indicator can be positioned in close proximity to the wire. The platform is encased by a housing in which these elements and their connections are embedded in synthetic potting resin.
REFERENCES:
patent: 931605 (1909-08-01), Hermansen et al.
patent: 1458940 (1923-06-01), Hynes
patent: 1703640 (1929-02-01), Schmidt-Predari
patent: 1803310 (1931-05-01), Basseches
patent: 2487161 (1949-11-01), Melton
patent: 2680185 (1954-06-01), Basile
patent: 3286082 (1966-11-01), Norton
patent: 3600552 (1971-08-01), Tolmie
patent: 3606019 (1971-09-01), Dubiel
patent: 3610878 (1971-10-01), Thomas et al.
Envall Jr. Roy N.
Roskoski Bernard
Ross Karl F.
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