ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,455,036, issued on Oct. 28, was assigned to Subsurface Inc. (Fargo, N.D.).

"CIPP liner feed roller" was invented by Jason M. Homrighaus (Canton, S.D.), Brandon G. Strom (Vergas, Minn.) and Gary H. Strom (Moorhead, Minn.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A CIPP liner feed roller for manipulating and feeding CIPP liner by pulling CIPP liner from a liner source and feeding it to where it is needed. The CIPP liner feed roller generally includes a main roller attached to a frame, a clamping roller attached to the frame and configured to be in parallel with the main roller, wherein the distance between the clamping roller and the main roller can ...