Fluid seal

Claim 1

A SEAL FOR SEALING A SHAFT ROTATABLY SUPPORTED IN AN OPENING IN A LIQUID BARRIER WALL, SAID SEAL CHARACTERIZED BY SEALING THE SHAFT UNDER BOTH STATIC AND DYNAMIC CONDITIONS, COMPRISING: A RADIAL DISC MEMBER AFFIXED TO THE SHAFT HAVING ONE FACE THEREOF IN CLOSE PROXIMITY TO THE LIQUID BARRIER WALL, SAID DISC MEMBER ADAPTABLE TO CENTRIFUGALLY EXPEL LIQUID AWAY FROM THE OPENING WHEN THE SHAFT IS ROTATED; A TUBULAR CENTRIFUGALLY DISTORTABLE RESILEINT SEAL MEMBER SUPPORTED COAXIALLY TO THE SHAFT AND AFFIXED AT ONE END THEREOF TO SAID DISC MEMBER; A TUBULAR SEAL CUP MEMBER SUPPORTED COAXIALLY OF SAID SHAFT AND SEALABLY AFFIXED AT ONE END THEREOF TO THE LIQUID BARRIER WALL, A PORTION OF SAID SEAL CUP MEMBER EXTENDING TELESCOPICALLY WITHIN AT LEAST A PORTION OF SAID TUBULAR RESILIENT SEAL MEMBER, SAID SEAL MEMBER NORMALLY SEALABLY CONTACTING SAID TELESCOPED PORTION OF SAID TUBULAR SEAL CUP MEMBER AT THE FULL CIRCUMFERENCE THEREOF; A CIRCULAR COIL SPRING MEMBER SUPPORTED COAXIALLY OF SAID TUBULAR RESILIENT SEAL MEMBER AND IN FULL CIRCUMFERENTIAL CONTACT WITH THE EXTERIOR SURFACE THEREOF TO NORMALLY CONSTRAIN SAID MEMBER IN SEALING CONTACT WITH SAID SEAL CUP MEMBER; AND A MULTIPLICITY OF WEIGHTS SUPPORTED AT SPACED INTERVALS WITHIN SAID COILED SPRING MEMBER, SAID WEIGHTS ADAPTABLE TO CENTRIFUGALLY EXTEND SAID SPRING MEMBER AS SAID SEAL MEMBER IS ROTATED BY THE SHAFT WHEREBY SAID SPRING RELEASES CONSTRAINT ON SAID RESILIENT SEAL MEMBER AT A PREDETERMINED SPEED OF ROTATION.