Lipped sealing ring

Claim 1

A SEALING DEVICE COMPRISING, (A) A CONTINUOUSLY FORMED RING-LIKE MEMBER MADE OF A RESILIENT FLOWABLE MATERIAL SUCH AS RUBBER THROUGHOUT AND ADAPTED TO BE FITTED INTO A SEALING GROOVE OF RING-LIKE CONFIGURATION, (B) SAID RING-LIKE MEMBER IN ITS FREE FORM BEING OF UNIFORM CROSS-SECTION THROUGHOUT AND HAVING INNER AND OUTER CIRCUMFERENTIAL SURFACES, (C) AND IN ITS FREE FORM HAVING IN CROSS-SECTION A GENERALLY SQUARE SHAPED MAJOR PORTION AND A MINOR PORTION CONSTITUTING A LIP EXTENDING LATERALLY FROM ONE SIDE OF SAID MAJOR PORTION AND IN A DIRECTION AWAY FROM ONE OF SAID CIRCUMFERENTIAL SURFACES TOWARD THE OTHER OF SAID CIRCUMFERENTIAL SURFACES, (D) SAID MAJOR PORTION HAVING CONVEXLY SHAPED LOBES AT EACH OF ITS CORNERS AND CONCAVELY SHAPED SURFACES AT EACH OF ITS SIDES BETWEEN SAID LOBES EXCEPT FOR SAID SIDE AT WHICH SAID MINOR PORTION IS CONNECTED TO SAID MAJOR PORTION, (E) SAID MINOR PORTION HAVING A CONVEXLY SHAPED LOBE AT SAID CIRCUMFERENTIAL SURFACE TOWARD WHICH IT EXTENDS AND A CONCAVE SURFACE BETWEEN ITS SAID LOBE AND THE LOBE AT THE ADJACENT CORNER OF SAID MAJOR PORTION, (F) SAID LIP TERMINATING SHORT OF THE OPPOSITE SIDE OF SAID MAJOR PORTION TOWARD WHICH IT EXTENDS AT A POINT AXIALLY REMOVED FROM SAID MAJOR PORTION, (G) SAID LIP BEING CONNECTED TO SAID MAJOR PORTION BY A RESTRICTED AREA HAVING TRANSVERSE DIMENSIONS LESS THAN THE TRANSVERSE THICKNESS OF SAID LIP AND CONSTITUTING A FLEXIBLE SUPPORT MOUNTING FOR SAID LIP.