Pipe puller

Details Pipe puller Pipe puller

2005-11-29

2005-11-29

Lee, Jong-Suk James (Department: 3673)

Hydraulic and earth engineering

Subterranean or submarine pipe or cable laying, retrieving,...

Plural pipe sections

C405S154100, C405S184000, C414S745400, C414S746500

Reexamination Certificate

active

06969217

ABSTRACT:
An apparatus for pulling a first pipe into contact with a stationary second pipe includes a frame and a strut pivotally mounted to the frame about a first pivot axis, the strut having a first end and second end. A pivot assembly is pivotally mounted to the frame about the first pivot axis. A pair of wheels is rotatably mounted to the pivot assembly about a wheel axis. A force generating apparatus is also mounted to the frame, the force generating apparatus configured for pulling the first pipe relative to the second pipe.

REFERENCES:
patent: 1195147 (1916-08-01), Mitchell
patent: 3760595 (1973-09-01), Stewart et al.
patent: 3958704 (1976-05-01), Wire et al.
patent: 4209269 (1980-06-01), Martinez
patent: 4384636 (1983-05-01), Hillemacher
patent: 4594027 (1986-06-01), Becker
patent: 4969677 (1990-11-01), Melegari
patent: 5368413 (1994-11-01), Moore
patent: 5653293 (1997-08-01), Ellis
patent: 6227765 (2001-05-01), von Trepka
patent: 3404724 (1985-09-01), None

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