Crusher for use with a power shovel

Description

FIG. 1 is a front elevational view of a crusher for use with a power shovel, showing my new design;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom view thereof;

FIG. 5 is a left side elevational view thereof;

FIG. 6 is a right side elevational view thereof; and

FIG. 7 is a perspective view thereof.

Referenced Cited
U.S. Patent Documents
D306599 March 13, 1990 Hunter
4283866 August 18, 1981 Ogawa
4403431 September 13, 1983 Ramun et al.
4635386 January 13, 1987 Kobayasi
4776524 October 11, 1988 Sakato
4838493 June 13, 1989 LaBounty
Patent History
Patent number: D323169
Type: Grant
Filed: Oct 11, 1989
Date of Patent: Jan 14, 1992
Assignee: Nippon Pneumatic Manufacturing Co., Ltd. (Osaka)
Inventor: Tadashi Saito (Higashiosaka)
Primary Examiner: Bernard Ansher
Assistant Examiner: Sandra Morris
Law Firm: Wenderoth, Lind & Ponack
Application Number: 7/420,005