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:
Feb. 18, 1992
Filed:
May. 25, 1990
Hiroshi Yoshioka, Hiroshima, JP;
Shingo Iwai, Hiroshima, JP;
Mitsubishi Denki K.K., Tokyo, JP;
Abstract
A motor-operated pump of the in-tank type including a motor for driving the pump, the motor having a commutator; a bracket covering one end of the motor disposed adjacent to the commutator; a brush held against the commutator through a through hole formed in the bracket; and a bearing for supporting a shaft of the motor. An annular projection is formed on a central portion of a surface of bracket disposed in opposed relation to the commutator, and the annular projection is formed integrally with the bracket. Alternatively, an annular projection is formed on a central portion of the commutator disposed in opposed relation to the bearing, and the annular projection is made of an electrically insulating material constituting the commutator, and is formed integrally with the commutator.