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. 04, 2003
Filed:
Mar. 22, 2002
Applicant:
Inventors:
Gerd Nebe, Wuppertal, DE;
Herbert Casel, Wuppertal, DE;
Assignee:
Robert Schröder GmbH & Co. KG, Wuppertal, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23B 3/1173 ;
U.S. Cl.
CPC ...
B23B 3/1173 ;
Abstract
A miniature drill chuck has a drill chuck housing and a thrust member positioned in the interior for moving clamping jaws into their clamping position during a threading movement of the drill chuck housing onto a machine spindle. The thrust member is longitudinally moveable in a guide bore of the drill chuck housing while being centered circumferentially about its entire stroke. A pair of truncated cone surfaces is provided between the machine spindle and the thrust member, wherein the machine spindle centers the thrust member via the pair of truncated cone surfaces when loading the thrust member.