US Patent Issued to Wallis Engineers on May 12 for "Movable drill rod spacer assembly" (Australian Inventors)

ALEXANDRIA, Va., May 12 -- United States Patent no. 12,624,600, issued on May 12, was assigned to Wallis Engineers Pty Ltd (Midvale WA, Australia).

"Movable drill rod spacer assembly" was invented by Jesse David Pleysier (Beckenham WA, Australia) and Paul Kalisch (Darch WA, Australia).

According to the abstract* released by the U.S. Patent & Trademark Office: "A drill rod spacer assembly is formed of a plurality of spacer members each movable to a first position, and a drive transfer arrangement configured operable for receiving a drive for moving a body. The body is configured for interacting with a spacer member while moving so as to move same to its first position. The drill rod spacer mover has a detent member configured operable for ...