The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 05, 1981
Filed:
Apr. 19, 1979
Applicant:
Inventor:
Robert A Marshall, Schenectady, NY (US);
Assignee:
General Electric Company, Schenectady, NY (US);
Primary Examiner:
Int. Cl.
CPC ...
H02K / ;
U.S. Cl.
CPC ...
310219 ; 310178 ;
Abstract
A current collector for an electrical machine employs a rotor collector ring encircled by a stator collector ring to which a compliant brush fabricated of an electrically-conductive, liquid metal-permeable material is attached. Liquid metal saturates said liquid metal-permeable material and forms a thin liquid metal film which makes sliding contact with the rotor collector ring, completing contact between the rotor and stator collector rings through the compliant brush. Adequate liquid metal is maintained in the collector by pumping means supplying liquid metal through the stator collector ring.