Torsional vibrational dampener device

Claim 1

A TORSIONAL VIBRATION DAMPENING DEVICE COMPRISING: A HUB HAVING A RADIALLY EXTENDING FLANGE; A PLATE ASSEMBLY COMPRISING A PAIR OF DISC PORTIONS DISPOSED ON OPPOSITE SIDES OF SAID HUB FLANGE AND SPACED THEREFROM, SAID FLANGE AND DISC PORTIONS EACH HAVING MEANS DEFINING A PLURALITY OF OPENINGS THEREIN WITH ADJACENT OPENINGS ON SAID FLANGE AND PORTIONS BEING ARRANGED IN GENERAL ALIGNMENT SO AS TO COOPERATE IN FORMING A PLURALITY OF VARIABLE RECEPTACLES; AND RESILIENT MEANS DISPOSED IN EACH OF SAID RECEPTACLES AND ADAPTED TO BE FLEXED UPON RELATIVE ROTATION BETWEEN SAID FLANGE AND DISC PORTIONS, SAID RESILIENT MEANS HAVING A GENERALLY RECTANGULAR CONFIGURATION WITHIN THE PLANE OF EACH OF SAID OPENINGS, SAID OPENING DEFINING MEANS PROVIDING A RADIALLY OUTERMOST WALL FOR EACH OF SAID DISC PORTION OPENINGS AND A RADIALLY OUTERMOST WALL FOR EACH OF SAID FLANGE OPENINGS, EACH SAID DISC PORTION OUTERMOST WALL BEING DISPOSED AT AN ANGLE WITH RESPECT TO EACH GENERALLY ALIGNED FLANGE OPENING OUTERMOST WALL AS VIEWED IN AN AXIAL DIRECTION, SAID OUTERMOST WALLS IN EACH OF SAID ALIGNED OPENINGS COOPERATING TO MAINTAIN ENGAGEMENT WITH SAID RESIIENT MEANS AT SUBSTANTIALLY THE SAME AREAS UNDER ALL OPERATING CONDITIONS WHEREBY PARASITIC FRICTION BETWEEN SAID RESILIENT MEANS AND OUTERMOST OPENING WALLS, TENDING TO REDUCE THE ELASTIC RESPONSE OF SAID RESILIENT MEANS, IS SUBSTANTIALLY ELIMINATED AND SAID OPENING DEFINING MEANS AND RESILIENT MEANS COOPERATING TO SUPPORT SAID DISC PORTIONS INDEPENDENT OF SAID HUB WHEREBY HERETOFORE PARASITIC FRICTIONS LOSSES DUE TO INTERENGAGEMENT BETWEEN THE HUB AND DISC PORTIONS MAY BE SUBSTANTIALLY ELIMINATED.