ALEXANDRIA, Va., Dec. 9 -- United States Patent no. 12,492,687, issued on Dec. 9, was assigned to Caterpillar Inc. (Peoria, Ill.).
"Insert and method for manufacturing fluid pump" was invented by Ron L. Sale (Mapleton, Ill.), Curtis J. Graham (Peoria, Ill.) and Luis A. Vazquez (Edwards, Ill.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A cylinder block for a fluid pump includes a cylindrical body having a hub bore and a plurality of cylinder bores arranged about the hub bore, a hub insert disposed in the hub bore, and an anti-rotation body configured to prevent rotation of the hub insert relative to the cylindrical body. The cylindrical body and the hub insert together define a channel in which the anti-ro...