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:
Nov. 26, 1991
Filed:
Jul. 23, 1990
Applicant:
Inventor:
Enrico Ronzoni, Bergamo, IT;
Assignee:
Gildemeister Italiana S.p.A., Brembate Sopra, IT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23B / ;
U.S. Cl.
CPC ...
279 / ; 279 / ; 279 50 ; 279 51 ;
Abstract
A clamping device for locking the workpiece-carrying collet of an automatic machine tool has a spring made of flexible plastic material. The spring has a flat elasticity characteristic and cooperates with an adjusting nut and an indicator nut. Pivotable closing levers that cooperate with a profiled abutment sleeve are also provided.