Service vehicle with a walk-through to the outside

Excavating – Ditcher

Reexamination Certificate

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C037S466000

Reexamination Certificate

active

10613556

ABSTRACT:
A hydraulic excavator is equipped with one or more downsizing scheme including at least one of: (i) a bubble removing device for removing bubbles in hydraulic fluid, (ii) a hydraulic tank including a main tank and a variable capacity tank arranged separately from each other, and (iii) a variable capacity tank or hydraulic tank which is fitted to the rear surface of the upper cover of the seat-side block. Thus, the lateral section of the seat can be ultimately downsized to provide a large space around the seat. Then, unlike the prior art, a canopy or a cab of a larger hydraulic excavator can be securely arranged on the upper swing body of a small hydraulic excavator. Since such large parts can be commonly used with large hydraulic excavators, it is possible to significantly reduce the cost of the hydraulic excavator.

REFERENCES:
patent: 2316729 (1943-04-01), Tryon
patent: 2418231 (1947-04-01), Kimm et al.
patent: 3217469 (1965-11-01), Eckert
patent: 3397512 (1968-08-01), Webb
patent: 3452518 (1969-07-01), Skaug et al.
patent: 3844743 (1974-10-01), Jones
patent: 4039305 (1977-08-01), Livesay
patent: 4541850 (1985-09-01), Oda et al.
patent: 4617031 (1986-10-01), Suh et al.
patent: 4865632 (1989-09-01), Yano et al.
patent: 4878924 (1989-11-01), Yano et al.
patent: 5202026 (1993-04-01), Lema
patent: 5755965 (1998-05-01), Reiber
patent: 5975833 (1999-11-01), Yamada et al.
patent: 6134816 (2000-10-01), Murakami et al.
patent: 2002/0007736 (2002-01-01), Hearn et al.
patent: 2002/0056675 (2002-05-01), Hegde
patent: 2002/0108486 (2002-08-01), Sannomiya et al.
patent: 2003/0233942 (2003-12-01), Konishi et al.
patent: 2004/0163865 (2004-08-01), Shimokakiuchi et al.
patent: 56-083602 (1981-07-01), None
patent: 61-124701 (1986-06-01), None
patent: 61-124701 (1986-08-01), None
patent: 02-052013 (1990-02-01), None

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