Pile grabber apparatus

Details Pile grabber apparatus Pile grabber apparatus

1993-02-17

1994-04-19

Corbin, David H.

Hydraulic and earth engineering

Foundation

Columnar structure

405256, 4147452, E02D 706

Patent

active

053040155

ABSTRACT:
A pile grabbing apparatus comprising a steel I-beam of appropriate length supporting two claw assemblies. The claw assemblies are each driven by two hydraulic cylinders to grab and hold a concrete pile. A pair of steel support plates are welded onto the I-beam and with a "quick coupler", the I-beam is attached to the arm of a mobile excavating apparatus, such as a dirt excavator. The hydraulic cylinders are connected to hydraulic hoses and controlled by a control module. The operator at the control module may manipulate the claw assemblies to open and close.

REFERENCES:
patent: 2880031 (1959-03-01), Dark
patent: 3019608 (1962-02-01), Marmion
patent: 3207326 (1965-09-01), Enix
patent: 3529731 (1970-09-01), Penny
patent: 3561615 (1971-02-01), Forsberg et al.
patent: 3860122 (1975-01-01), Cernosek
patent: 4697959 (1987-10-01), Kinnan
patent: 4709764 (1987-12-01), Gibbons
patent: 4755080 (1988-07-01), Cortlever et al.

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