Fluid reaction surfaces (i.e. – impellers) – With measuring – testing – signalling or inspection means
Patent
1975-02-12
1976-09-21
Powell, Jr., Everette A.
Fluid reaction surfaces (i.e., impellers)
With measuring, testing, signalling or inspection means
307145, 416226, B64C 2732
Patent
active
039816117
ABSTRACT:
In an electrical system requiring an electrical interconnection between a rotating body and a relatively stationary body, a circuit provides a highly reliable electrical interconnection between the bodies through the use of multiple rotary electrical connection assemblies connected in parallel across the rotating interface during normal operation, and connected in series, from the relatively stationary body through one of the rotary electrical connection assemblies to the rotating body and returning to the stationary body through another one of the rotary electrical connection assemblies, for verification of the electrical continuity of the interconnection during a testing operation.
REFERENCES:
patent: 1780431 (1930-11-01), McCarroll
patent: 2551649 (1951-05-01), Taylor
patent: 2838694 (1958-06-01), Hider
patent: 3317759 (1967-05-01), Grobel
patent: 3547555 (1970-12-01), Jensen
patent: 3793533 (1974-02-01), Ginsberg
patent: 3896446 (1975-07-01), Kondoh et al.
Chiantera Dominic J.
Powell Jr. Everette A.
United Technologies Corporation
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