Electric heating – Heating devices – Combined with diverse-type art device
Patent
1980-02-20
1981-04-28
Mayewsky, Volodymyr Y.
Electric heating
Heating devices
Combined with diverse-type art device
73361, 219209, 219510, 361334, 236 1F, H05B 100
Patent
active
042648025
ABSTRACT:
An improved oven (10) for maintaining the junctions of a plurality of reference thermocouples at a common and contant temperature. The oven (10) is characterized by a cylindrical body (12) defining a heat sink having an axially extended cylindrical cavity (14), a singularized heating element comprising a unitary cylindrical heating element consisting of a resistence heating coil (20) wound about the surface of a metallic spool (18) having an axial bore (22) defined therein and seated in the cavity, an annular array of radially extended bores (30) defined in the cylindrical body (12) and a plurality of reference thermocouple junctions (32) seated in the bores in uniformly spaced relation with the heating element, and a temperature sensing device (28) seated in the axial bore for detecting temperature changes as they occur in the spool and circuit (46) for applying a voltage across the coil in response to detected drops in temperatures of the spool.
REFERENCES:
patent: 2785860 (1957-03-01), Harrison et al.
patent: 3069909 (1962-12-01), Hines
patent: 3244371 (1966-04-01), Bishop
patent: 3345540 (1967-10-01), Sutherland et al.
patent: 3444399 (1969-05-01), Jones
patent: 3648523 (1972-03-01), Kemper
patent: 3690177 (1972-09-01), Fluegel
patent: 3986082 (1976-10-01), Land
Manning John R.
Mayewsky Volodymyr Y.
McCaul Paul F.
Mott Monte F.
The United States of America as represented by the Administrator
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