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:
Nov. 16, 1976
Filed:
Jan. 30, 1975
Applicant:
Inventor:
George Cecil Derbyshire, Sheffield, EN;
Assignee:
The Jacobs Manufacturing Company Limited, Sheffield, EN;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B23B / ;
U.S. Cl.
CPC ...
279 16 ; 279 60 ; 279 61 ;
Abstract
A drill chuck having converging slidable jaws which are extendible and retractible relative to the body of the chuck by means of a key operable bevel gear part and an associated nut rotatable relative to the body, together with a driving component for the chuck for detachably mounting the chuck to the spindle of a power tool, and further provided with means for producing a self-centering action between the body part and the driving component. Various modifications of the components of the chuck, particularly the nut, bevel gear part, driving component and the self-centering means are also disclosed.