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. 04, 2008
Filed:
Apr. 15, 2004
Kazushige Okumoto, Kariya, JP;
Masami Niimi, Handa, JP;
Tsutomu Shiga, Nukata-gun, JP;
Denso Corporation, Kariya, JP;
Abstract
A starter for cranking an internal combustion engine is composed of an electric motor, an output shaft driven by the electric motor, a pinion gear unit helical-spline-coupled to the output shaft, and a magnetic switch for supplying electric power to the electric motor in an ON-and-OFF fashion and for engaging or disengaging the pinion gear unit with a ring gear of the engine. The pinion gear unit is made by fixedly connecting a pinion gear, a rotation-restricting ring and a bearing member together. These components are separately formed from one another and then assembled to a unitary body of the pinion gear unit. Therefore, they can be forged with simple dies, or may be manufactured by other methods such as machining.