Soil displacement tools

Details Soil displacement tools Soil displacement tools

1987-02-27

1989-06-20

Taylor, Dennis L.

Hydraulic and earth engineering

Foundation

Columnar structure

175 20, 175 21, 405232, 405240, E02D 536

Patent

active

048405175

ABSTRACT:
A soil displacement tool, or mole, comprises a hollow cylindrical body in which is provided an hydraulically reciprocal piston the movement of which drives the tool through the soil to form a hole, the body and piston being annular such that the tool is hollow.

REFERENCES:
patent: 977356 (1910-11-01), Withrow
patent: 3137483 (1964-06-01), Zinkiewicz
patent: 3151687 (1964-10-01), Sato et al.
patent: 3344611 (1967-10-01), Philo
patent: 3420067 (1969-01-01), Bjerking
patent: 3465834 (1969-09-01), Southworth
patent: 3869869 (1975-03-01), Paochen
patent: 4026370 (1977-05-01), Foster et al.
patent: 4078619 (1978-03-01), Sudnishnikov et al.
patent: 4648746 (1987-03-01), Abinett

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