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:
Sep. 13, 2005
Filed:
Feb. 26, 2004
Applicants:
Anh Le, Lockport, NY (US);
Roy Allan Plew, Tonawanda, NY (US);
John F. Quesada, Williamsville, NY (US);
Inventors:
Anh Le, Lockport, NY (US);
Roy Allan Plew, Tonawanda, NY (US);
John F. Quesada, Williamsville, NY (US);
Assignee:
Delphi Technologies, Inc., Troy, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04B027/08 ;
U.S. Cl.
CPC ...
Abstract
A unitary, 'hollow out' piston is molded or forged with only two tools, which move along a single parting direction, with a pair of arcuate side walls that provide maximal outer surface area with minimal thickness and weight. The thin walls are internally fortified by a cruciform support structure that is molded integrally by the same tools. No post forming machining steps are needed to reduce weight.