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.

Date of Patent:
Jun. 07, 2011

Filed:

Aug. 26, 2006
Applicants:

Ralf Buschbeck, Mockmuhl, DE;

Johannes Sperman, Bad Wimpfen, DE;

Albert Haberl, Bad Friedrichshall, DE;

Klaus Lormes, Bad Wimpfen, DE;

Inventors:

Ralf Buschbeck, Mockmuhl, DE;

Johannes Sperman, Bad Wimpfen, DE;

Albert Haberl, Bad Friedrichshall, DE;

Klaus Lormes, Bad Wimpfen, DE;

Assignee:

KS Kolbenschmidt GmbH, Neckarsulm, DE;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16J 1/04 (2006.01); F01B 31/10 (2006.01);
U.S. Cl.
CPC ...
Abstract

A piston has a piston head that is provided with a field of rings and a piston shaft which is disposed thereupon. The piston shaft is equipped with supporting shaft wall sections and rear connecting walls which interconnect the shaft wall sections, have an arched shape, and are fitted with a bolt bore. An undercut free space is provided below the annular field in the area of the bolt bore in the region of the piston head. An arched zone is disposed in the interior of the piston at the transition from the bolt bore in the direction of the shaft wall session.


Find Patent Forward Citations

Buschbeck, Ralf. (2011). Lightweight piston (U.S. Patent No. 7954421). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7954421

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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