Sprocket wheel

- Chuhn Chuan Corporation

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Description

FIG. 1 is a front elevational view of a sprocket wheel showing my new design;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a left side elevational view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof;

FIG. 7 is a front perspective view thereof; and,

FIG. 8 is a rear perpective view thereof.

Referenced Cited
U.S. Patent Documents
36318 August 1862 Woodworth
D178422 July 1956 Paybert et al.
D366017 January 9, 1996 Boone
4642075 February 10, 1987 Nagashima
5224903 July 6, 1993 Langhof et al.
5348515 September 20, 1994 Miller
Patent History
Patent number: D397966
Type: Grant
Filed: Sep 19, 1997
Date of Patent: Sep 8, 1998
Assignee: Chuhn Chuan Corporation (Changhua)
Inventor: Wen-Yao Chang (Changhua)
Primary Examiner: Sandra L. Morris
Assistant Examiner: Nanda Bondade
Law Firm: Beveridge, DeGrandi, Weilacher & Young, LLP
Application Number: 0/76,777
Classifications
Current U.S. Class: Crank Or Sprocket (D12/123); Element Or Attachment (D15/5)
International Classification: 1211;