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. 14, 1978
Filed:
Mar. 08, 1976
Applicant:
Inventor:
George C Derbyshire, Sheffield, EN;
Assignee:
The Jacobs Manufacturing Company, Limited, Sheffield, EN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23B / ;
U.S. Cl.
CPC ...
279 62 ; 279 / ;
Abstract
A drill chuck of the angularly sliding jaw type having an integral nut and bevel gear element formed as an unbroken ring and then split in halves, the halves being held together by a chuck sleeve; and the teeth of the bevel gear being 'blind', that is, to say the teeth are connected at their radially inner ends by an integral strengthening collar. The collar forms one of two bearing faces to maintain axial alignment of the integral nut and bevel gear element in the chuck body element.