ALEXANDRIA, Va., April 15 -- United States Patent no. 12,601,404, issued on April 14, was assigned to Konzelmann GmbH (Lochgau, Germany).
"Internally clamping rectangular seal" was invented by Matthias Heine (Stuttgart, Germany), Michail Michailidis (Bonnigheim, Germany) and Heino Kramp (Besigheim, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "A seal for sealing a shaft with respect to a housing can be inserted into a groove disposed circumferentially on a shaft bore. The seal is interrupted along its circumferential direction at a joint and two ring-end sections are formed. The seal has an outer surface facing radially outwards, an inner clamping surface facing radially inwards and opposing flank s...