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. 09, 2001
Filed:
Sep. 26, 2000
Applicant:
Inventor:
Nobuyuki Izumisawa, Tokyo, JP;
Assignee:
Kabushiki Kaisha Shinano Seisakusho, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B25B 1/346 ;
U.S. Cl.
CPC ...
B25B 1/346 ;
Abstract
In a ratchet wrench, power generated by an air motor is transmitted to a ratchet mechanism via a reduction gear mechanism, so that a rotary tightening member connected to the ratchet mechanism is operated. A flywheel is fitted onto a shaft of the air motor in order to increase the tightening torque.