ALEXANDRIA, Va., Sept. 23 -- United States Patent no. 12,421,683, issued on Sept. 23, was assigned to John Lawrie Inc. (Houston).
"Coupler for coupling driven steel pipe piles" was invented by Victor Arthur Sinclair (Houston).
According to the abstract* released by the U.S. Patent & Trademark Office: "A coupler for coupling together a lead pile segment and an extension pile segment of a driven pile comprises: a cylindrical pipe segment, having first and second formed ends and a cylindrical body extending therebetween, each of the first and second formed ends having an inner diameter that is greater than an inner diameter of the cylindrical body. The first formed end is sized to snugly receive an end of the lead pile segment and the second...