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:
Dec. 07, 1993
Filed:
Nov. 17, 1992
Applicant:
Inventors:
Assignee:
ZEXEL Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23P / ;
U.S. Cl.
CPC ...
2988804 ; 2988802 ; 29890128 ;
Abstract
A process for machining a lead of a plunger to be used in a variable fuel injection rate type in-line fuel injection pump includes machining a plunger blank to form a port hole and then hardening. After this, the plunger blank is additionally machined, while being chucked by a NC machine, to form a shallow hole overlapping the lower end portion of the port hole. The plunger body is then machined in the chucked state with the machining reference of the shallow hole to form a longitudinal groove and a lead.
Wada, Yukio. (1993). Plunger lead machining process for fuel injection pumps (U.S. Patent No. 5267396). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5267396
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile