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:
Oct. 08, 1991
Filed:
Jan. 18, 1990
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
A starter motor which is improved in waterproof performance. The starter motor comprises an output rotary shaft, a stationary frame, a ball bearing secured to the frame, and a clutch pinion moving member mounted in a coaxial relationship to the rotary shaft between an outer periphery of the rotary shaft and the ball bearing for sliding movement over a predetermined distance in an axial direction thereof. The clutch pinion moving member has a pinion at a front end thereof, and an oil seal is mounted at a location on the frame forwardly of the ball bearing and extending toward the clutch pinion moving member to seal a location between the frame and the clutch pinion moving member. The oil seal has a radial section of an L-shape having an axial side and a radial side extending from a front end of the axial side. It may have a plurality of axially extending drain slots or drain holes formed in a circumferentially spaced relationship on an inner periphery of the axial side thereof. Various other forms of starter motors are also disclosed.