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:
Aug. 12, 2003
Filed:
Aug. 29, 2002
Applicant:
Inventors:
Assignee:
Usui Kokusai Sangyo Kabushiki Kaisha, Shizuoka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01L 1/14 ;
U.S. Cl.
CPC ...
F01L 1/14 ;
Abstract
An oil-through type push rod for, for instance, internal combustion engines including a metal pipe and a metal end fitting which has an oil hole formed therein and is welded to the end of the metal pipe, the metal pipe being provided with a covering layer of a low-melting-point metal for fixing a welding spatter generated during welding, and such a low-melting-point metal covering layer being disposed on at least an inside wall surface of the metal pipe so as to be near an area where the metal end fitting is welded.