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. 06, 1979
Filed:
Apr. 22, 1977
Horst Behnke, Zorneding, DE;
Carl Hurth Maschinen-und Zahnradfabrik, Munich, DE;
Abstract
A mandrel for receiving the tool of a tool machine which has cones on both ends thereof for centering the mandrel in a tool machine spindle. Securing structure is provided for securing the mandrel to the tool machine spindle so that rotational drive is provided therefor. A stop is provided on one end of the mandrel intermediate the two cones and a cylinder-like device is provided at the end remote therefrom but also spaced inwardly from the cones. A piston is reciprocably mounted in the cylinder and engages a tool mounted on the mandrel. An application of pressure to the cylinder will cause an axial movement of the piston to engage the tool to effect a clamping of the tool between the stop and the aforementioned piston.