Boom of excavator

- Komatsu Ltd.
Description

FIG. 1 is a front view of a boom of excavator showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a cross sectional view taken along line 6--6 in FIG. 1;

FIG. 7 is a cross sectional view taken along line 7--7 in FIG. 1;

FIG. 8 is a reduced front, left perspective view of the boom of excavator; and,

FIG. 9 is a reduced front, right perspective view thereof.

Referenced Cited
U.S. Patent Documents
D159160 June 1950 Mork
D339813 September 28, 1993 Houkom
4161369 July 17, 1979 Moreno
4193734 March 18, 1980 Williams
4301607 November 24, 1981 Inui
4392314 July 12, 1983 Albrecht et al.
5152659 October 6, 1992 Waka
5611657 March 18, 1997 Peterson
Patent History
Patent number: D410240
Type: Grant
Filed: Dec 23, 1997
Date of Patent: May 25, 1999
Assignee: Komatsu Ltd. (Tokyo)
Inventor: Hidetoshi Sasaki (Kawasaki)
Primary Examiner: Sandra L. Morris
Law Firm: Kanesaka & Takeuchi
Application Number: 0/81,154
Classifications
Current U.S. Class: Scraper Blade Or Loader Element (D15/32)
International Classification: 1504;