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:
Aug. 04, 1998
Filed:
Apr. 10, 1997
Peter Grund, Trossingen, DE;
Rudolf Haninger, Seitingen, DE;
Chiron-Werke GmbH & Co. KG, Tuttlingen, DE;
Abstract
A holder for a tool comprises a tapered hollow shaft, having an upper opening, for clamping into a tool receptacle, and a coolant tube arranged in the interior of the tapered hollow shaft for delivery of coolant to the tool. The coolant tube comprises an inlet opening for coolant, facing the upper opening, as well as an upper tube section having a cylindrical outer enveloping surface with which, when the holder is clamped into the tool receptacle, a sealing ring, which is arranged in a delivery tube for coolant which then at least partly overlaps the coolant tube, is in contact. A cover for the inlet opening is provided, which prevents chips from getting into the coolant tube. In addition, a further tube section, the outside diameter of which is smaller than that of the upper tube section, adjoins the upper tube section at the bottom. Upon coupling of the holder, the sealing ring is located in the region of the further tube section, and is not brought into sealing contact with the enveloping surface of the upper tube section until clamping occurs.