Land vehicles – Wheeled – Attachment
Reexamination Certificate
2007-03-13
2007-03-13
Dickson, Paul N. (Department: 3616)
Land vehicles
Wheeled
Attachment
Reexamination Certificate
active
10789157
ABSTRACT:
A counterweight for a hydraulic shovel, which is applicable to a compact to large-sized hydraulic shovels, and is capable of realizing favorable engine maintainability and assurance of sufficient mass, is provided. For this purpose, supporting column portions (12b, 12c) are vertically provided at left and right of a counterweight (12). The left and right supporting column portions are constituted as an increase amount of mass of the counterweight. At least one of a floor frame (30), a canopy (40), outer casings (14, 16) and engine partition walls (33a, 33b) is supported at the left and right supporting column portions. Further, an engine (13) is placed at a position fronting to between the left and right supporting column portions.
REFERENCES:
patent: 3567049 (1971-03-01), Guinot
patent: 3687484 (1972-08-01), Cosby
patent: 5671820 (1997-09-01), Kobayashi et al.
patent: 6481748 (2002-11-01), Okuda et al.
patent: 6922925 (2005-08-01), Watanabe et al.
patent: 2003/0226293 (2003-12-01), Takemura et al.
patent: 2004/0172863 (2004-09-01), Otsuka et al.
patent: 1413684 (2004-04-01), None
patent: 08-068075 (1996-03-01), None
patent: 2000-309946 (2000-11-01), None
patent: 2001-106479 (2001-04-01), None
patent: 2001-279722 (2001-10-01), None
Andou Takenobu
Ohmura Junichi
Sugiyama Kiyoshi
Dickson Paul N.
Frishauf Holtz Goodman & Chick P.C.
Komatsu Ltd.
Wilhelm Timothy D.
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