Pile driving device

Details Pile driving device Pile driving device

1977-02-22

1978-07-25

Staab, Lawrence J.

Tool driving or impacting

Automatic control of power operated means

173125, 173131, 61 535, E02D 534

Patent

active

041024087

ABSTRACT:
A gas cushion impact cap, used in connection with pile driving, is connected to an external pressure chamber holding an additional volume of gas, whereby there will be no appreciable change in the gas pressure during the impact. The gas pressure is primarily determined by varying the volume of a liquid contained in the pressure chamber, in response to the resistance met by the pile while penetrating the ground. The impact cap may be pre-loaded during an upwards movement, the pre-load being released upon the impact, to throw the hammer upwards again.

REFERENCES:
patent: 3417828 (1968-12-01), Duyster et al.
patent: 3446293 (1969-05-01), Guild et al.
patent: 3498391 (1970-03-01), Guild et al.
patent: 3797585 (1974-03-01), Ludvigson
patent: 4029158 (1977-06-01), Gerrish

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1416943