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:
Feb. 12, 1985
Filed:
Dec. 23, 1983
Ramon Pareja, Edina, MN (US);
Lear Siegler, Inc., Santa Monica, CA (US);
Abstract
Improved multi-cylinder pumps wherein a plurality of co-planar positioned connecting rods are radially disposed about a crankshaft and wherein a plurality of generally cylindrical spool-like wrist pins are rotatively coupled to the connecting rods. The improvement comprises an assembly wherein the wrist pins have opposed end regions bordering a smaller diameter central region that contains one or more ring receiving grooves and which wrist pins are mountable in overlapping relation to retainer ring containing grooves formed in the connecting rods. Upon mounting retainer rings in the connecting rod grooves and inserting and rotatively locking the wrist pins in the connecting rods, the connecting rods, wrist pins and retainer rings are integrally locked together in radially extending relation.