US Patent Issued to KENNAMETAL on Jan. 13 for "Hydraulic chuck assembly and expansion sleeve therefor" (American, German Inventors)

ALEXANDRIA, Va., Jan. 13 -- United States Patent no. 12,521,800, issued on Jan. 13, was assigned to KENNAMETAL INC. (Latrobe, Pa.).

"Hydraulic chuck assembly and expansion sleeve therefor" was invented by Ruy Frota De Souza Filho (Latrobe, Pa.), Austin Baer (Irwin, Pa.) and Dominik Schmid (Furth, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "A hydraulic chuck assembly includes a tool support member having an axial bore. An expansion sleeve is received within the axial bore of the tool support member. The expansion sleeve comprises an inner surface, an outer surface and a front flange extending radially outward from the outer surface. A primary pressure chamber is formed between the axial bore of the...