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.

Date of Patent:
Apr. 12, 2011

Filed:

Jun. 27, 2006
Applicants:

Karl Kammerer, Fluorn-Winzeln, DE;

Bernhard Mossmann, Schramberg-Waldmössingen, DE;

Inventors:

Karl Kammerer, Fluorn-Winzeln, DE;

Bernhard Mossmann, Schramberg-Waldmössingen, DE;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21C 35/197 (2006.01);
U.S. Cl.
CPC ...
Abstract

A circular-shank tool including a shank held in a bore of a tool holder by a locking sleeve, the shank being rotatably held in the locking sleeve. The locking sleeve has one or more retaining elements that project inwards and engage in a peripheral groove in the shank of the tool, thus indisplaceably securing the locking sleeve in an axial direction on the shank of the tool. Because the locking sleeve is mirror-symmetrical to the central transversal plane, the locking sleeve can be fixed to the shank in a position that is rotated through 180°.


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