Piston ring for internal combustion engine

Description

FIG. 1.1 is a front view of a piston ring for an internal combustion engine of the present invention.

FIG. 1.2 is a rear view thereof.

FIG. 1.3 is a bottom plan view thereof.

FIG. 1.4 is a front perspective view showing the left side thereof.

FIG. 1.5 is a front perspective view showing the right side thereof.

FIG. 1.6 is an enlarged view defined by the circle 1.6 of FIG. 1.1.

FIG. 1.7 is an enlarged view defined by the circle 1.7 of FIG. 1.2.

FIG. 1.8 is an enlarged view defined by the circle 1.8 of FIG. 1.3.

FIG. 1.9 is an enlarged view defined by the circle 1.9 of FIG. 1.4.

FIG. 1.10 is an enlarged view defined by the circle 1.10 of FIG. 1.5.

The dash-dash broken lines depict portions of the piston ring which form no part of the claimed design and the dot-dash-dot broken lines depict the boundary of the claimed design and form no part thereof.

Claims

CLAIM The ornamental design for a piston ring for an internal combustion engine, as shown and described.

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Inventors:	Shimizu; Hiroshi (Kashiwazaki, JP)
Applicant:	Name City State Country Type KABUSHIKI KAISHA RIKEN Tokyo N/A JP
Assignee:	KABUSHIKI KAISHA RIKEN (Tokyo, JP)
Appl. No.:	35/507,464
Filed:	March 25, 2019

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International Registration

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Int'l Reg. No.	Int'l Reg. Date	Int'l Reg. Publication Date	Hague Int'l Filing Date
DM/202398	Mar 25, 2019	Sep 27, 2019	Mar 25, 2019

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Foreign Application Priority Data

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Sep 25, 2018 [JP]			2018-020802
Sep 25, 2018 [JP]			2018-020803

Current U.S. Class:	D15/148
Current International Class:	1599
Field of Search:	;D15/148 ;D23/269 ;D30/131 ;D6/352 ;D8/14,71

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References Cited [Referenced By]

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U.S. Patent Documents

3655208	April 1972	Walker
4192051	March 1980	Bergeron
4251083	February 1981	Montes
4449721	May 1984	Tsuge
5253878	October 1993	Miura
D394866	June 1998	Lee
5836589	November 1998	Sakata
5934685	August 1999	Danzer
6470792	October 2002	Michel
D881958	April 2020	Han
2001/0045703	November 2001	Scarlett
2013/0305918	November 2013	Okazaki
2014/0246835	September 2014	Stiehler
2016/0305545	October 2016	Okazaki
2019/0195363	June 2019	Shimizu
2020/0018395	January 2020	Shimizu

Primary Examiner: Buckner; Nathaniel D.
Attorney, Agent or Firm: Leydig, Voit & Mayer, Ltd.

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