Abstract: An improved sealing assembly arranged to be used with a bearing shaft and housing. The sealing assembly is positioned in between the shaft and housing and includes a multi-ring structure journaled to the housing and arranged in between the shaft and housing. The improvement comprises a pressure and self-compensating radial-contact sealing device mounted within an enclosure of the multi-ring sealing structure and positioned radially to the bearing shaft. The radial-contact sealing device consists of a cover and a support spring partially capsulated by the cover.

Abstract: A continuous two-stage process for the production of heteropolysaccharide by Xanthomonas bacteria on selected cereal grain carbohydrate substrates. The growth phase and the cell population of the bacteria are totally separated from the polymerization of the biopolymer product.

Abstract: There is disclosed an improved unitary sealing ring that is used on the shafts of rotating elements. The ring has first and second axial faces. The second face has a recess forming a flange therein. At least one annular groove extends along the inwardly radially extending surface. A first axially and longitudinally extending groove communicating between the annular groove or grooves and the axial face. A second longitudinally extending groove extends from the first face to the second face on the outer surface of said ring. The annular groove or grooves function as an oil groove or grooves and the axially and longitudinally extending grooves are designed to accumulate foreign particles that may be incursive with respect to the journalling means of a driving or driven device. These foreign particles are then expelled to the second axially and longitudinally extending groove due to the centrifugal force when the device is being operated.

Abstract: There is disclosed improved sealing rings having two complementary parts. The sealing rings are used on the shafts of rotating elements. The first ring has an annular face with a recess therein and adapted and constructed to mate with an axially extending flange which extends from the annular face of the second ring. The flange has grooves on the radially outwardly facing surface. The inwardly facing wall of the recess also possesses grooves. Additionally, there is a communicating orifice through the first ring to communicate with the recess. The various grooves are designed to accumulate foreign particles that may be incursive with respect to the journalling means of a driving or driven device. These foreign particles are then expelled through the aforementioned orifice due to centrifugal forces while the device is being employed.