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. 05, 1978
Filed:
May. 18, 1977
Applicant:
Inventor:
George Cecil Derbyshire, Sheffield, GB;
Assignee:
The Jacobs Manufacturing Company, Limited, Sheffield, GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B25B / ;
U.S. Cl.
CPC ...
81 9 / ; 279 / ;
Abstract
A drill chuck key with ejector means for disengaging at least its geared head part or at least its pilot portion from the chuck when released by the user.