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. 27, 2007
Filed:
Jan. 18, 2005
Applicants:
James A. Rinner, Racine, WI (US);
Hua Gao, Fox Point, WI (US);
Inventors:
James A. Rinner, Racine, WI (US);
Hua Gao, Fox Point, WI (US);
Assignee:
Pilling Weck, Incorporated, Horsham, PA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B25B 13/00 (2006.01); B25B 13/46 (2006.01);
U.S. Cl.
CPC ...
Abstract
A ratchet screwdriver and method of making same wherein there is a handle and there is a ratchet gear and pawls inside the handle. An adjuster is inside the handle and is movable by a tool extending into the handle for positioning the adjuster relative to the gear and thereby eliminating play between the gear and the handle. Ball bearings are interposed between the handle and the gear and the bearings rotatably support the gear and transmit the anti-play forces that act on the gear.