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:
Oct. 21, 2014
Filed:
Jun. 29, 2011
Roland Schmitz, Vaihingen, DE;
Roland Schmitz, Vaihingen, DE;
EMAG Holding GmbH, Salach, DE;
Abstract
An apparatus for grinding a cam having an outer surface with outwardly convex and outwardly concave portions has a frame and a main drive on the frame for holding the cam and rotating it about a main axis. A pair of drive motors having respective output axes generally diametrally flank the main axis. Respective carriages carrying the drive motors are shiftable on the frame radially of the main axis. One of the motors is shiftable into an inner position in which the main axis extends through the one drive motor. Respective grinding wheels are rotatable by the motors about the respective axes, and the wheel of the one motor is of substantially smaller diameter than the wheel of the other motor.