Patent GB312932A successfully refreshed from Google Patents.
GB312932A
Expired / Lapsed
GB
⏱️ 0.0 years remaining
Heating device for attaining high temperatures by means of electric heating resistances
Assignee: Individual
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Filing: 1929-05-31
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Granted: —
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Expires: 1949-05-31
Abstract
Abstract 312,932. Neumann, F. May 31, 1929. [A Specification was laid open to inspection under Sect. 91 of the Acts, June 3, 1929]. Wire resistances, enclosed; cored. -High temperature metallic heating resistances are wound on a core 2 in a casing 3 which can be evacuated or filled with an inert gas, the core and casing comprising a difficultly fusible ceramic material such as that composed of a high percentage of aluminium oxide fusible at 2050‹ C. and without measurable vapour pressure up to 1500‹ C.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
GB
Data Source
google_patents
Last Synchronized
2026-10-22 22:08
CPC Classifications
H; H05; H05B; H05B3/00; H05B3/40; H05B3/42; H05B3/44; H05B3/46
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