Modular system of mutli-purpose rods for drilling soil
AssigneeSoilmec S.p.A.
InventorEzio Biserna
Life of this patent
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Abstract
A modular system of multipurpose rods for drilling soil is constituted by rods (1) crossed by an internal passage (2) for the passage of concrete, of substantially cylindrical shape, that completely crosses the rod; each of the rods is provided at the endings with a male insert (5) and a female insert (6) respectively, adapted to be plugged in one to the other for permitting the assembly in batteries of any length. The inserts (5, 6) are provided with transmitters (11, 11a) for transmitting the rotation along the whole battery of rods (1) and arranged for fixing elements that reduce the internal passage (2).
Claims14
A modular system of multipurpose rods for drilling soil comprising:
- a plurality of rods crossed by an internal passage for the passage of at least a cemented mixture, of substantially cylindrical shape and constant, that completely crosses the rod;
- each of the rods being provided at the endings with a male insert and a female insert respectively, adapted to be plugged in one to the other for permitting the assembly in batteries of any length;
- the inserts of the endings of each rod being provided with means adapted for transmitting the rotation along the whole battery and arranged for fixing hollow elements that reduce the section of the rods for their whole length.
Dependencies are inferred from the claim text.