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:
Sep. 03, 1991
Filed:
Jul. 20, 1990
Applicant:
Inventors:
Leonard W Biera, Ortonville, MI (US);
William F Crawford, Sterling Heights, MI (US);
John Kobane, Jr, Sterling Heights, MI (US);
Jack R Settimo, Shelby Township, Macomb County, MI (US);
Assignee:
Litton Industrial Automation Systems, Inc., Florence, KY (US);
Primary Examiner:
Int. Cl.
CPC ...
B23B / ;
U.S. Cl.
CPC ...
408 36 ; 82-14 ; 408 42 ; 408118 ; 408158 ; 409233 ;
Abstract
Apparatus for machining a valve seat and valve stem guide all from the valve seat side of a head or block. The valve seat is machined in one pass by a single point cutting tool which is moved on two axes and, the valve guide bore is machined by a reamer. The movements of the single point cutting tool and reamer are numerically controlled.