Driving head for pneumatic pile drivers

Details Driving head for pneumatic pile drivers Driving head for pneumatic pile drivers

1983-07-15

1985-04-02

Novosad, Stephen J.

Boring or penetrating the earth

Boring without earth removal

175414, E21B 1102

Patent

active

045081816

ABSTRACT:
A driving head which can be used for pneumatic pile drivers and can serve as an attachment head for rods or pipes which are to be driven in pile drivers. The driving head has an essentially circular front end and a conically expanding surface over the periphery of which are uniformly distributed a plurality of longitudinal grooves which start from the front end. Also provided is at least one transversely extending section which extends around the surface in a circle. The longitudinal grooves have a V-shaped cross section, and the surface of the driving head is formed by a plurality of conical sections which are offset in the manner of steps via jumps in the diameter. The end faces formed between the individual conical sections are disposed at an angle in a range of from 45.degree. relative to 90.degree. to the longitudinal center line of the driving head.

REFERENCES:
patent: 661798 (1900-11-01), Glossop
patent: 730786 (1903-06-01), Murphy
patent: 753503 (1904-03-01), Martin
patent: 3926267 (1975-12-01), Svirschevsky et al.
patent: 4144941 (1979-03-01), Ritter
patent: 4193461 (1980-03-01), Lamberton et al.

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