Sliding contact for a propeller ice protection system

Details Sliding contact for a propeller ice protection system Sliding contact for a propeller ice protection system

1994-04-29

1997-06-03

Paumen, Gary F.

Electrical connectors

Interrelated connectors relatively movable during use

Movement about axis

310232, 244134D, H01R 3910

Patent

active

056348002

ABSTRACT:
An improved sliding contact for use with a propeller ice protection system is provided. According to an aspect of the invention, a silver graphite brush forms a sliding contact with a hardened copper alloy slip ring. A sliding contact according to the invention demonstrates improved performance in an oil contaminated environment.

REFERENCES:
patent: 4136295 (1979-01-01), Sweet
patent: 4386749 (1983-06-01), Sweet et al.
patent: 5020741 (1991-06-01), Ziegler et al.
patent: 5479060 (1995-12-01), Giamati et al.
BF Goodrich Co., Ice Protection Systems Division, "Slip Ring Material Review and Suggestions", Jul. 29, 1991, 2 pages.
National Electrical Carbon Corporation, "The National Brush Digest", cover and p. 1., Operating Conditions, Chapter 11, pp. 50-56.
Union Carbide Corporation, W. C. Kalb & F. K. Lutz, "Carbon Brushes for Electrical Equipment", Chapter 3, pp. 20-21.
"Effects of Humidity and of Impurities in the Atmosphere on the Behaviour of Brushes", Oil And Grease, pp. 10-12.
National Electrical Carbon Corporation, "Electrical Products", Grade Data Sheet, 1 page.

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