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:
May. 30, 1995
Filed:
Oct. 06, 1992
Roger Girardin, Vernier, CH;
Charmilles Technologies, Meyrin, CH;
Abstract
Tool-holder (5) makes it possible to rotate a tool at high speed around its axis of symmetry. Its tapered end (26) is engaged in the tapered bore (16) provided in the spindle (6). In a bore of suitable shape a clamp (2) is engaged, adapted to secure the electrode tool end (1) rigidly. An injection chamber (28) communicates with the bore and is connected by radial channels (27) to a fluid inlet. The clamp (2) has radial grooves to bring the cooling fluid (25) from the injection chamber (28) to the surface of the tool (1). A sealed circuit (12,13,15) channels the liquid; it is connected by an input channel of small diameter which passes through the spindle body (10) to a small liquid inlet in the mobile element of the machining head or in the intermediary fixing element mounted on said mobile element. An annular seal (14) of small diameter is mounted in the spindle body around said channel (11').