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. 16, 1986
Filed:
Oct. 29, 1984
Martin Morsbach, Burscheid, DE;
Bert Brauers, Blecher-Odenthal, DE;
Goetze AG, Burscheid, DE;
Abstract
An oil scraper piston ring assembly includes an oil scraper ring received in a piston groove and being in circular contact with a first side wall of the groove; and a spring ring received in the groove between the oil scraper ring and a second side wall of the groove. The spring ring has circumferentially distributed resilient tongues oriented alternatingly radially inwardly and radially outwardly. The spring ring has a radially outer circular part situated axially adjacent the oil scraper ring and a radially inner circular part bent with respect to the radially outer circular part and extending at least partially radially adjacent an inner periphery of the oil scraper ring. The oil scraper ring is a steel band ring of relatively small axial height, the spring ring is a resilient band ring also of relatively small axial height, and the oil scraper ring and the spring ring have approximately identical thicknesses of material.