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:
Jul. 11, 1978
Filed:
May. 31, 1977
Applicant:
Inventor:
Kenneth J Nisper, Spring Lake, MI (US);
Assignee:
Questor Corporation, Toledo, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16F / ; F02F / ;
U.S. Cl.
CPC ...
277139 ; 267-15 ; 277143 ; 277218 ;
Abstract
The disclosure embraces a piston ring construction particularly an oil control ring construction comprising a parted oil control ring or rings and a parted compressible spacer-expander ring or spring member, the spacer-expander member configurated with strut portions, pairs of the strut portions having their end regions integrally joined by connectors, the connectors being formed with inwardly extending portions, the spacer-expander member being arranged to exert substantially uniform outward radial pressure against one or more oil control rings, the spacer-expander member being adapted to accommodate a latch member for bridging the ends of the member.