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:
Apr. 18, 1989
Filed:
Feb. 09, 1988
Applicant:
Inventor:
Alessandro Lunazzi, Bologna, IT;
Assignee:
C.I.M.A. Costruzioni Italiane Macchine Attrezzi S.p.A., Bologna, IT;
Primary Examiner:
Int. Cl.
CPC ...
B23F / ;
U.S. Cl.
CPC ...
409 11 ; 409 15 ;
Abstract
Problems connected with control of the worktable in automatic gear cutting machinery are overcome by adoption of a drive system incorporating two speed reductions, the first of which a worm and wheel, the second consisting in a cylindrical gear pair with parallel shafts, one of the two members of which is backlash-compensating and split into two coaxial sections; the larger of the two cylindrical gears turns as one with the worktable.