Electric heating – Heating devices – With heating unit structure
Patent
1975-01-24
1977-01-11
Mayewsky, Volodymyr Y.
Electric heating
Heating devices
With heating unit structure
219270, 313340, 313344, 338296, H05B 310
Patent
active
040028844
ABSTRACT:
A small heater wire winding for a fast warm up indirectly heated cathode includes a spacer wire wound over the heater wire. The main winding and spacer wire are coated with insulation to insure spacing between closely wound turns.
REFERENCES:
patent: 2831140 (1958-04-01), Blickwedel et al.
patent: 2935638 (1960-05-01), Farrow
patent: 3029360 (1962-04-01), Etter
patent: 3231715 (1966-01-01), Hall
patent: 3474229 (1969-10-01), Rump
patent: 3495121 (1970-02-01), Katz
patent: 3737714 (1973-06-01), Theodosopoulas et al.
patent: 3869692 (1975-03-01), Larson
International Standard Electric Corporation
Marshall Thomas M.
Mayewsky Volodymyr Y.
O'Halloran John T.
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