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:
Jun. 13, 1978
Filed:
May. 07, 1976
Applicant:
Inventor:
Kenneth E Kueny, North Muskegon, MI (US);
Assignee:
Johnson Products Div. of Sealed Power Corporation, Muskegon, MI (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01L / ;
U.S. Cl.
CPC ...
123 9051 ;
Abstract
A roller tappet includes a central valve lifter body having a bifurcated end. A roller is supported at the bifurcated end and adapted for engagement by the lobes of a cam shaft. The valve lifter body reciprocates within a cylindrical bore defined by a cast iron engine block. The roller tappet body is formed from a ductile iron material thereby decreasing side wall wear and substantially eliminating galling between the valve lifter body and the wall of the cast iron tappet bore.