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:
Jan. 29, 1980
Filed:
Jun. 23, 1978
Horst Beyer, Burscheid, DE;
Ulrich Buran, Burscheid, DE;
Hans-Joachim Neuhauser, Bergisch-Gladbach, DE;
Goetze AG, Burscheid, DE;
Abstract
A machine part, such as a piston ring or sealing strip for an internal combustion engine, having one surface arranged to be in sliding contact with a cooperating part to thus be subjected to friction wear, the machine part being provided with a recess extending inwardly from the one surface and presenting at least one lateral wall, and the machine part comprising a layer of material different from the material of the machine part, which layer is disposed in the recess at the sliding surface, in which the layer is held in the recess in a manner such that no bond exists between the layer and the lateral wall.