Subsea pile driver

Details Subsea pile driver Subsea pile driver

1980-02-26

1983-01-11

Schroeder, Werner H.

Tool driving or impacting

Impacting devices

Hammer head comprises plural parts or diverse materials

405228, 173DIG1, E02D 702, E02D 706

Patent

active

043678009

ABSTRACT:
The hammer of an underwater pile driving apparatus is movable upwards and downwards in a housing which, in operation, is filled with a liquid which is present both above and below the hammer, the hammer being driven at least on the upwards direction by a driving liquid which is pressurized by a motor driven pump located on or adjacent the housing and which is the same as the liquid in which the hammer moves.

REFERENCES:
patent: 1846804 (1932-02-01), Hansen
patent: 3547207 (1970-12-01), Warrington
patent: 3800548 (1974-04-01), Wisotsky
patent: 3820346 (1974-06-01), Wisotsky
patent: 3970156 (1976-07-01), Niskin
patent: 4033139 (1977-07-01), Frederick
patent: 4043405 (1977-08-01), Kuhn
patent: 4238166 (1980-12-01), Gendron

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