ALEXANDRIA, Va., June 19 -- United States Patent no. 12,331,476, issued on June 17, was assigned to OLIVER NV (Roeselare, Belgium).
"System for coupling of piles" was invented by Gerdi Vankeirsbilck (Rumbeke, Belgium) and Dimitry Vankeirsbilck (Roeselare, Belgium).
According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed is an attachment system for detachably coupling a female tube end and a male tube end to each other to form foundation piles. The system includes corresponding cylindrical sleeve holes in tube sleeves of the tube ends; a coupling element which is fittable in the sleeve holes and rotatable through an angle therein; a blocking pin on the coupling element or on one of the sleeve holes; and a bloc...