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:
Dec. 20, 1988
Filed:
Apr. 01, 1987
Applicant:
Inventors:
Marcel P D'Haem, New Hartford, NY (US);
Pradip K Paul, Whitesboro, NY (US);
Assignee:
Chicago Pneumatic Tool Company, Utica, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B25B / ;
U.S. Cl.
CPC ...
81 5739 ; 81 5713 ; 81 5729 ;
Abstract
An improved ratchet wrench tool ratcheting mechanism is provided wherein springs encased in the shank spindle have balls at each end of the springs to abut fixed washer surfaces so that tool operation and life is improved by increasing the frictional force and reducing the spring stress, unbalanced load, and housing yoke wear experienced by prior art mechanisms.