US Patent Issued to ERGOSEAL on Aug. 25 for "Cartridge seal" (Illinois Inventor)

ALEXANDRIA, Va., Aug. 25 -- United States Patent no. 12,716,499, issued on Aug. 25, was assigned to ERGOSEAL INC. (Carol Stream, Ill.).

"Cartridge seal" was invented by Bryan Callaway (Carol Stream, Ill.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A cartridge seal assembly includes a rotatable seal ring and a non-rotatable seal ring forming a mechanical face seal. A plurality of resilient elements disposed in a housing between a stop surface and the non-rotatable seal ring provide a biasing force to urge the non-rotatable seal ring towards the rotatable seal ring. The non-rotatable seal ring includes an inner axial side opposite the annular non-rotatable seal face that forms a plurality of slots that are ...