US Patent Issued to The Charles Machine Works on May 5 for "Apparatus for capturing axial force on an inner drive member" (Oklahoma Inventor)

ALEXANDRIA, Va., May 5 -- United States Patent no. 12,618,289, issued on May 5, was assigned to The Charles Machine Works Inc. (Perry, Okla.).

"Apparatus for capturing axial force on an inner drive member" was invented by Max A. Metcalf (Stillwater, Okla.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A spindle with a mechanism for transferring axial force from an inner drive assembly to an outer drive assembly. The spindle's inner drive shaft is connected to an inner member of a dual-rod pipe by a drive rod having a sliding sleeve. The sleeve is fixed rotationally with the drive shaft, but not axially. When axial force drives the drive rod toward the drive member of the spindle, the sleeve contacts a stop m...