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:
Sep. 26, 1978
Filed:
Jan. 11, 1978
Applicant:
Inventor:
Glenn H DePagter, Spring Lake, MI (US);
Assignee:
Gardner-Denver Company, Dallas, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B25B / ;
U.S. Cl.
CPC ...
81 5739 ;
Abstract
The drive mechanism of a power ratchet wrench includes a rotary cam which engages a drive ball which in turn is engaged with a push rod for rotating the wrench socket. The push rod is formed with a spherical seat for engaging the drive ball and the cam includes an annular surface which is concavely curved to provide a seat for the drive ball. The drive ball reciprocates in an axial bore in the wrench housing.