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:
Jan. 08, 1980
Filed:
Jun. 26, 1978
Applicant:
Inventors:
Michael Earle, Mapleton, IL (US);
Glenn H Lenzen, Peoria, IL (US);
Assignee:
Caterpillar Tractor Co., Peoria, IL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01L / ; F01L / ;
U.S. Cl.
CPC ...
1231 / ; 1231 / ; 2915 / ;
Abstract
An engine valve has a valve body, a valve head, an annular metallic valve seat layer fusibly bonded to the valve head that has a relatively fine crystalline structure, and a thinner region of interstitial bond between the valve head and the valve seat layer than heretofore known.