Cushioned drive cap for a pile driver

Details Cushioned drive cap for a pile driver Cushioned drive cap for a pile driver

1982-01-04

1984-08-14

Yost, Frank T.

Tool driving or impacting

Impacting devices

Impact transmitting anvil

173 1, 173139, 267137, B25D 900, E21B 1102

Patent

active

044651457

ABSTRACT:
A force-transmitting a drive caps is interposable between a pile driver hammer and a pile to be driven. This cap is formed with an upwardly open cylinder which is of smaller area than the striking face of the hammer. A piston is vertically reciprocal in this cylinder and has an upper surface which is engageable with the striking face of the hammer. The chamber below the piston in the drive cap contains a body of liquid and a body of gas. The gas is pressurized so as to urge the piston into a raised position extending upwardly from the upper face of the drive cap. The piston and hammer are dimensioned so that the hammer first strikes the piston, driving it downwardly in the cylinder, and thereafter strikes the upper surface of the drive cap. The gas body may be held in a separate container within the chamber in te drive cap and the pressure of the gas body is established by the amount of liquid in this chamber.

REFERENCES:
patent: 886193 (1908-04-01), Dewitt
patent: 3417828 (1968-12-01), Duyster et al.
patent: 3456741 (1967-07-01), James
patent: 3498391 (1970-03-01), Guild et al.
patent: 3797585 (1974-03-01), Ludvigson
patent: 3991833 (1976-11-01), Ruppert
patent: 4036310 (1977-07-01), Schnell

Affiliated with

Also associated with

Rating

Cushioned drive cap for a pile driver does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Cushioned drive cap for a pile driver, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Cushioned drive cap for a pile driver will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-109482