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:
Jul. 12, 1994
Filed:
Apr. 02, 1993
Applicant:
Inventors:
Karl Rehm, Mindelheim, DE;
Markus Grob, Bad Worishofen, DE;
Assignee:
Grob-Werke GmbH & Co. KG, Mindelheim, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23B / ;
U.S. Cl.
CPC ...
408125 ; 82-13 ; 409231 ;
Abstract
A tool spindle for machining or producing elliptical surfaces, particularly elliptical bores, includes a housing (1) of two parts (31 32), a sleeve (2) rotatable mounted in the housing, a tool carrier shaft (3) rotatably mounted in the interior of the sleeve (2) for carrying a machining tool on the outer end thereof, the tool carrier shaft having an axis of rotation (13) in parallel spaced relationship with respect to the axis of rotation (12) of the sleeve, and a drive mechanism (4, 5, 6, 7, 8, 9, 11, 18, 21, 30) for driving the tool carrier shaft and the sleeve at the same speed in opposite directions.