Concrete foundation pile and device for driving the same into the ground
OwnerPieter Faberinventor
Life of this patent
Estimating the term…
Abstract
A concrete foundation pile and a device for driving the pile into the ground. The pile is provided with an outer surface having a screw thread element extending over a considerable part thereof, and a cavity extending from an opposite end of the pile forming an internal engaging surface extending over the part of the pile over which the screw thread element extends. A rotational driving force is transferred over said internal engaging surface substantially along the full length over which the screw thread element extends.
Claims22
A concrete foundation pile comprising:
- an elongated body;
- a screw thread element extending helically over a considerable part of the length of an outer surface of said body from an end thereof;
- and a cavity extending from an opposite end of said body;
- said cavity having a non-circular, lengthwise substantially constant cross-section, at least in the part of the pile over which the screw thread element extends, and forming an internal engaging surface extending over the part of the pile over which the screw thread element extends, wherein said internal engaging surface is the wall of the cavity and wherein a rotational driving force is transferred over said internal engaging surface substantially along the full length of the pile over which the screw thread element extends.
A device for driving a foundation pile in combination with the foundation pile, wherein the foundation pile comprises:
- an elongated body;
- a screw thread element extending helically over a considerable part of a length of an outer surface of said body from an end thereof;
- and a cavity extending from an opposite end of said body;
- said cavity having a non-circular, lengthwise substantially constant cross-section, at least in the part of the pile over which the screw thread element extends, and forming an internal engaging surface extending over the part of the pile over which the screw thread element extends wherein said internal engaging surface is the wall of the cavity and wherein a rotational driving force is transferred over substantially the full length of the pile over which the screw thread element extends;
- said device comprising:
- a frame,
- a rotation drive means connected to said frame, said rotation drive means further comprising a rod-shaped element having a cross-section complementary with said cross-section of said cavity of said foundation pile and having a length at least equal to said length of said cavity, the stiffness in torsion of said rod-shaped element being larger than that of said pile, and
- wherein said rod-shaped element comprises a cavity engaging outer tube element and an inner elongate element connected to said drive means, said inner elongate element at least at its lower end drivingly engaging said outer tube element.
Dependencies are inferred from the claim text.