ALEXANDRIA, Va., Dec. 31 -- United States Patent no. 12,508,680, issued on Dec. 30, was assigned to Mid-States Oilfield Machine LLC (Oklahoma City).
"Gearbox case with wear sleeve" was invented by John Floyd Bossa (El Reno, Okla.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A gearbox may include a gearbox case with a wear sleeve disposed within a shaft bore, and a gear assembly mounted on a shaft and disposed within the shaft bore. The gear assembly may include a bearing that engages the wear sleeve. A method of repairing a gearbox case may include uncoupling a top piece and a bottom piece of the gearbox case, forming an oversize bore in a shaft bore of the gearbox case to remove a damaged area, and instal...