Engine piston

Description

FIG. 1 is an isometric view of a first engine piston.

FIG. 2 is a top view thereof.

FIG. 3 is a bottom view thereof.

FIG. 4 is a front view thereof, which is the same as a rear view thereof; and,

FIG. 5 is a right side view thereof, which is the same as a left side view thereof.

The broken lines are for purposes of illustrating portions of the engine piston that form no part of the claimed design.

Claims

CLAIM The ornamental design for an engine piston, as shown and described.

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Inventors:	He; Jie (Aurora, IL), Buening; Jeffrey Paul (Dunlap, IL)
Applicant:	Name City State Country Type He; Jie Buening; Jeffrey Paul Aurora Dunlap IL IL US US
Assignee:	Caterpillar Inc. (Peoria, IL)
Appl. No.:	D/346,462
Filed:	October 30, 2009

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Current U.S. Class:	D15/5
Current International Class:	1501
Field of Search:	;D15/1-5,7 ;123/193.6,47A,47R,41.35,661,659

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References Cited [Referenced By]

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U.S. Patent Documents

D56347	October 1920	Farmer
1783477	December 1930	Mansfield
1883637	October 1932	Edwards
1961886	June 1934	Larger
2046789	July 1936	Norton
D122922	October 1940	Flammang et al.
2244166	June 1941	Marien
D138548	August 1944	Toce et al.
2511458	June 1950	Bramberry, Sr.
3104922	September 1963	Baster
3123899	March 1964	Townhill
3190273	June 1965	Bachle et al.
3221722	December 1965	Bachle
3906923	September 1975	Harker
3943908	March 1976	Kubis et al.
4180027	December 1979	Taylor
4359973	November 1982	Shimada
D286781	November 1986	Collyear et al.
D287599	January 1987	Murray
4756241	July 1988	Sakurahara et al.
5040454	August 1991	Ballheimer et al.
D322969	January 1992	Ballheimer et al.
5179916	January 1993	Schonfeld
5331932	July 1994	Watanabe et al.
D377493	January 1997	Oda et al.
D383761	September 1997	Huntzinger
D399212	October 1998	Roderweiss et al.
5839352	November 1998	Ribeiro et al.
5901678	May 1999	Bielaga
6220215	April 2001	Morimoto
6223710	May 2001	Franz
6345599	February 2002	Pfestorf et al.
6491013	December 2002	Gaiser et al.
6502539	January 2003	Ribeiro et al.
6539910	April 2003	Gaiser et al.
6557514	May 2003	Gaiser
6862976	March 2005	Gaiser et al.
6892689	May 2005	Bischofberger et al.
6957638	October 2005	Scharp
D515590	February 2006	Freitas
7383807	June 2008	Azevedo et al.
7387100	June 2008	Fiedler et al.
7406941	August 2008	Zhu et al.
7533649	May 2009	Kemnitz et al.
7607414	October 2009	Kamada et al.
D609247	February 2010	Naegele et al.
D633529	March 2011	Hamada et al.
7946268	May 2011	Messmer
8220432	July 2012	Iwata et al.
8225765	July 2012	Kortas et al.
8528513	September 2013	Haug et al.
8544441	October 2013	Azevedo
8695560	April 2014	Issler et al.
8739755	June 2014	Stan et al.
8807109	August 2014	Muscas et al.
8813357	August 2014	Kopchick et al.
8813712	August 2014	Bing et al.
D713422	September 2014	Muscas
8899208	December 2014	Bischofberger
2003/0101958	June 2003	Han
2004/0003793	January 2004	Saruwatari et al.
2006/0096557	May 2006	Christain et al.
2007/0074695	April 2007	Gildemeister et al.
2009/0145394	June 2009	Nigro et al.
2009/0151688	June 2009	Matsui et al.
2011/0100317	May 2011	He et al.

Foreign Patent Documents

	03-008640		Jan 1991		JP
	1996-034883		Nov 1996		KR
	10-0450441		Sep 2004		KR
	03/036045		May 2003		WO

Primary Examiner: Nelson; T. Chase
Assistant Examiner: Aman; Ania
Attorney, Agent or Firm: Leydig, Voit & Mayer, Ltd.