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:
Mar. 28, 1978
Filed:
Mar. 07, 1977
Allan J Heffron, Freeland, MI (US);
Henry J Garnaat, Jackson, MI (US);
Laverne H Kennedy, Saginaw, MI (US);
CM Systems, Inc., Bay City, MI (US);
Crankshaft Machine Co., Jackson, MI (US);
Abstract
The invention pertains to the method and apparatus for machining crankshaft bearing and cheek surfaces wherein the cheek surfaces are turned by tungsten carbide tools in a dry-cutting operation and the bearing surface is turned by high-speed steel tools. The cheek and bearing machining is sequentially performed, the rate of crankshaft rotation and rate of tool movement during cheeking being considerably higher than during bearing machining, and the carbide and high speed tools are mounted upon a common tool carrier shiftable between two operative positions to permit the sequential turning operations to be rapidly sequentially performed during a single translation of the slide upon which the tools are mounted.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile