Crawler frame for construction machine

Excavating – Cable-operated – Boom-type

Reexamination Certificate

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Details

C037S395000, C212S180000, C180S311000, C280S797000

Reexamination Certificate

active

10789160

ABSTRACT:
In a crawler frame in which legs in a center frame are formed from cast steel, a simple structure is achieved by reducing the number of components. To this end, the crawler frame, which has a center frame composed of a central frame section for supporting a swing bearing and legs located on the right and left sides of the central frame section; and track frames disposed on the sides of the distal ends of the legs, respectively, of the center frame, is designed such that each of the legs is bifurcated into front and rear leg sections and the front and rear leg sections are respectively formed from cast steel.

REFERENCES:
patent: 1629890 (1927-05-01), Ronk
patent: 2134866 (1938-11-01), Esters
patent: 3757881 (1973-09-01), Short et al.
patent: 3894597 (1975-07-01), Wagner
patent: 4231699 (1980-11-01), Thompson
patent: 4249625 (1981-02-01), Palm
patent: 4361242 (1982-11-01), Dion et al.
patent: 4391341 (1983-07-01), Taghon
patent: 4397481 (1983-08-01), Dion et al.
patent: 4625820 (1986-12-01), Christian
patent: 5823279 (1998-10-01), Petzold
patent: 6322104 (2001-11-01), Duppong et al.
patent: 6588521 (2003-07-01), Porubcansky et al.
patent: 6637111 (2003-10-01), Sasaki et al.
patent: 6719075 (2004-04-01), Kamikawa
patent: 2004/0107607 (2004-06-01), Fukushima
patent: 1 426 497 (2004-06-01), None
patent: 1479833 (2004-11-01), None
patent: 05319320 (1993-12-01), None
patent: 08-072615 (1996-03-01), None
patent: 09209402 (1997-08-01), None
patent: 11-0932309 (1999-04-01), None
patent: 11-278321 (1999-10-01), None
patent: 2000-230252 (2000-08-01), None
patent: 2001106128 (2001-04-01), None
patent: 2003182653 (2003-07-01), None
patent: WO 03/042022 (2003-05-01), None

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