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. 09, 1990
Filed:
Jul. 28, 1988
Fritz Rosch, Schwabach, DE;
Bernd Otte, Zirndorf, DE;
Alcan International Ltd., Montreal, CA;
Abstract
A component subjected to zonally differential thermal stress for engines, machinery or other devices, in particular a component for combustion engines. In these components, in order to arrange more favourably the stress variation as a function of temperature in the thermally highly stressed parts or regions, so that the adjoining colder regions do not reduce or hinder its expansion, in the material of the component, for example a piston of a combustion engine, in the neighbourhood of the zones of higher thermal loading, at least one closed hollow chamber is provided which is completely filled with a substance which has a higher coefficient of thermal expansion than that of the material of the component surrouding the chamber.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile