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:
Oct. 10, 2000
Filed:
Sep. 27, 1999
Applicant:
Inventor:
Markus Umierski, Stolberg, DE;
Assignee:
FEV Motorentechnik GmbH, Aachen, DE;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
F02F / ;
U.S. Cl.
CPC ...
1231936 ;
Abstract
A piston for an internal-combustion engine has a longitudinal axis, a crown and an outer crown face. The crown face includes a dished depression; a surface region surrounding the dished depression and being elevated relative thereto; and a plurality of substantially radially extending clefts subdividing the surface region into a plurality of elevated partial surface regions.