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:
Apr. 06, 1999
Filed:
Jan. 27, 1998
Stephan Thieme, Hersbruck, DE;
Edgar Martin, Nurnberg, DE;
Alcan Deutschland GmbH, Gottingen, DE;
Abstract
A liquid-cooled internal combustion engine piston (10) comprises on the one hand at least one annular segment-shaped coolant duct (12a, 12b) formed within an upper piston member and having openings (16a, 16b, 18) at sites symmetrical relative to the gudgeon pin axis (14) for supplying and discharging oil. On the other hand, an approximately radial communicating duct (20) enclosed in its course toward the crank chamber and connected to the annular segmented ducts (12a, 12b) in the region of the openings (16a, 16b, 18) is provided.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile