ALEXANDRIA, Va., April 21 -- United States Patent no. 12,607,078, issued on April 21, was assigned to FORUM US INC. (Houston).
"Hydraulic spider system and methods for use thereof" was invented by Arne Pross (Hamburg, Germany) and Rumen Mittelstadt (Hamburg, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "An insert for a slip in a hydraulic spider, including an engagement body. The engagement body including an engagement surface. The engagement surface including a first concave surface portion and a second concave surface portion. The first concave surface portion including teeth with a first radius of curvature. The second concave surface portion including teeth with a second radius of curvature that...