Pile driving apparatus

Details Pile driving apparatus Pile driving apparatus

1975-08-04

1977-06-14

Purser, Ernest R.

Tool driving or impacting

Impacting devices

Impact transmitting anvil

61 535, 173139, 267113, E02D 1100

Patent

active

040291588

ABSTRACT:
Apparatus for use in driving a pile by means of successive hammer blows at the same time as a vibratory force is to be applied to the pile comprises means for simultaneously transmitting, to a pile to be driven, a force produced by a hammer blow and a vibrating force which is generated by the application of the hammer blow. Preferably the apparatus comprises a housing including an elongate enclosed chamber containing an electro viscous fluid, the housing being adapted to be mounted on the upper end of a pile to be driven with the chamber longitudinally orientated in the direction in which the pile is to be driven; a transfer hammer having a part which slidingly extends into the chamber through the housing for transmitting the force produced by a hammer blow applied to the transfer hammer to the pile to be driven by movement of said part of the transfer hammer into the chamber along the length of the chamber; and means for developing a vibratory force when the said part of the transfer hammer moves along the chamber as a result of a hammer blow, said means comprising a gap containing said electro viscous fluid surrounding the said part of the transfer hammer between said part of the transfer hammer and the walls of the chamber and means for applying an alternating electrical field across the gap.

REFERENCES:
patent: 2886151 (1957-05-01), Winslow
patent: 3270672 (1966-09-01), Haines et al.
patent: 3304446 (1967-02-01), Martinek et al.
patent: 3797585 (1974-03-01), Ludvigson

Affiliated with

Also associated with

Rating

Pile driving apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Pile driving apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pile driving apparatus will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4952