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. 01, 1989
Filed:
Oct. 05, 1987
Applicant:
Inventor:
Pierre Harmand, 74000 Annecy, FR;
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B24B / ;
U.S. Cl.
CPC ...
5124 / ; 5124 / ;
Abstract
The present invention relates to a toolholder device for a machine tool. A device according to the invention integral with a table (3) moveable in two directions perpendicular to one another comprises a toolholder spindle (1), a sleeve (2) with a lower bearing surface (2a) of convex sphericity, a housing (3) with a seat (3a) of concave sphericity, and means (4) for generating a magnetic field which repel or attract the bearing surface of the sleeve and which are associated with the seat (3a). The invention is used particularly in toolholder spindles for valve-seat grinders.