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:
Sep. 06, 1983
Filed:
Jan. 08, 1982
Kenneth Preece, Solihull, GB;
Lucas Industries Limited, Birmingham, GB;
Abstract
A pair of brushes respectively slidably engage radially outer surfaces of first and second electrically conductive rings which are disposed co-axially and are rotatable about their common axis. The first ring surrounds an axial portion of the second ring and is electrically insulated therefrom by a thin layer of insulating material, while the second ring is mounted on a rotary shaft and is electrically insulated therefrom similarly by a thin layer of insulating material. The second ring may be axially stepped so that it has a smaller diameter portion which is surrounded by the first ring and a larger diameter portion which is engaged by the respective brush.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile