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:
Mar. 18, 2025
Filed:
Jul. 06, 2021
Applicant:
Tris Inc., Matsusaka, JP;
Inventors:
Taisuke Hattori, Matsusaka, JP;
Yuma Fukuta, Matsusaka, JP;
Assignee:
TRIS INC, Matsusaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01R 39/64 (2006.01); B60R 16/06 (2006.01);
U.S. Cl.
CPC ...
H01R 39/64 (2013.01); B60R 16/06 (2013.01); H01R 2201/26 (2013.01);
Abstract
A carbon grounding brush has a sliding surface that slides on and grounds a driving shaft transmitting driving force and exposed to an insulating liquid. A slit is provided on the sliding surface, and at least one end of the slit is located on one side of the sliding surface. The slit introduces into the slit the insulating liquid pressed towards the sliding surface by the rotation of the driving shaft and discharges the insulating liquid from the one end of the slit. Thus, the contact resistance between the driving shaft and the sliding surface is made small, and electrical corrosion and electromagnetic noises are reduced.