Glide ring seal for rotary piston motors

Claim 1

A GLIDE RING SEAL ARRANGEMENT FOR SEALING BETWEEN FIRST AND SECOND RELATIVELY ROTATING RADIALLY SPACED MACHINE PARTS AND ADAPTED FOR INSERTION AS A SINGLE INTEGRAL UNIT BETWEEN SAID MACHINE PARTS, SAID SEAL ARRANGEMENT COMPRISING; RESILIENT ANNULAR DISK-LIKE SPRING MEANS HAVING INNER AND OUTER MARGINAL REGIONS, A METAL GLIDE RING FIXEDLY CONNECTED TO ONE SIDE OF SAID SPRING MEANS AT ONE OF SAID INNER OR OUTER MARGINAL REGIONS AND PROJECTING AXIALLY THEREFROM, SAID GLIDE RING HAVING AN ANNULAR FACE ON THE SIDE FACING AWAY FROM SAID SPRING MEANS OPERABLE FOR SLIDINGLY SEALINGLY ENGAGING A RADIAL SURFACE ON ONE OF SAID MACHINE PARTS, THE OTHER OF SAID MARGINAL REGIONS BEING RADIALLY SPACED FROM THE OTHER OF SAID MACHINE PARTS, A SECOND RING AT SAID OTHER OF SAID MARGINAL REGIONS FORMING A PART OF SAID SEAL ARRANGEMENT AND ADAPTED FOR SEALING ENGAGEMENT WITH A RADIAL SURFACE OF THE OTHER OF SAID MACHINE PARTS AND ALSO OPERABLE FOR TENSIONING SAID SPRING MEANS TO HOLD SAID GLIDE RING IN PRESSURE ENGAGEMENT WITH SAID ONE MACHINE PART, AND MEANS MAINTAINING A SEAL BETWEEN SAID SECOND RING AND SAID GLIDE RING.