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. 11, 1997
Filed:
Feb. 16, 1995
Martin Lauterwald, Frankfurt, DE;
Black & Decker Inc., Newark, DE (US);
Abstract
A tool holder for a rotary and/or chisel hammer is provided with a sleeve body with a central opening for receiving a tool bit with a least one axial locking groove which is closed at both ends for engaging a cylindrical locking body which is located in a through opening in the sleeve body. The sleeve body is surrounded by a displaceable adjustment sleeve which has an area for preventing an outward radial movement of the locking body and which in a displaced position permits the radial outward movement of the at least one locking body. A ring element consisting of several ring segments is located behind the locking body and extends with a support portion into the through opening. With the movement of the locking body it can be displaced to the rear against spring pressure and in its displaced position permits a radially outward movement of the at least one locking body.