Rammer

Details Rammer Rammer

1988-02-26

1989-10-03

Watts, Douglas D.

Tool driving or impacting

Impacting devices

175 19, 405154, E21B 100

Patent

active

048710342

ABSTRACT:
In a rammer for driving in pipes open in the direction of ramming, in which a piston, axially reciprocated in a housing having an impact head, imparts its thrust to the housing, making the impact head integral with the housing allows a shorter rammer to be used without loss of thrust.

REFERENCES:
patent: 4160486 (1979-07-01), Kostylev et al.
patent: 4609052 (1986-09-01), Lewin

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