Pile-driving ram

Details Pile-driving ram Pile-driving ram

1981-04-08

1984-01-24

Kazenske, E. R.

Tool driving or impacting

Impacting devices

Hammer head comprises plural parts or diverse materials

173103, 173139, B25D 904

Patent

active

044270780

ABSTRACT:
A ram for driving elongated objects into the ground including a piston jacket, an anvil disposed on the object to be driven, a mechanism located within the jacket for directly impacting with the anvil and for reciprocating at least substantially in a direction of driving the elongated object during driving operation wherein the mechanism for impacting further includes a plurality of cup springs arranged in series in the direction of driving the object and which are in contact with one another and wherein a lowermost cup spring directly impacts the anvil during driving operation.

REFERENCES:
patent: 2812745 (1957-11-01), Pyk
patent: 3245482 (1966-04-01), Williams
patent: 3305034 (1967-02-01), Koeln
patent: 3823786 (1974-07-01), Voitsekhovsky

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