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. 01, 2005
Filed:
Jan. 17, 2003
Masahiko Kusama, Wentzville, MO (US);
Masahiko Kusama, Wentzville, MO (US);
S.P. Air Kabusiki Kaisha, Nagano Pref., JP;
Abstract
A hand-held power tool for inhibiting uncalled-for rotation of the output shaft and for self-compensating for wear. The tool comprises a housing, a braking member fixedly mounted in the housing and an output shaft mounted in the housing for rotation. The output shaft has an outer end portion for reception of an attachment. A ratchet wheel on the output shaft is adapted to be driven in one direction or the other, has a side face facing a first surface of a wear member, and has a plurality of recesses extending inward from the side face. The wear member is keyed to the output shaft for conjoint rotation. A plurality of engagement members are received one in each recess and biased outward against the first surface to bias a second surface of the wear member against the braking member for holding the ratchet wheel against rotation opposite the driven direction.