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:
Jan. 29, 1980
Filed:
Feb. 17, 1978
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 ...
310178 ; 310219 ;
Abstract
A current collector for an electrical machine employs a rotor collector ring encircled by a stator collector ring to which a compliant brush of U-shaped cross section and fabricated of an electrically conductive, liquid metal-permeable material is attached. The region enclosed between the stator collector ring and the brush is filled with liquid metal which seeps outward through the brush interstices, forming on the brush a thin liquid metal film which makes sliding contact with the rotor collector ring, enhancing conductivity between the rotor and stator collector rings through the brush filaments.