Seal for a joint or juncture – Seal between relatively movable parts – Relatively rotatable radially extending sealing face member
Patent
1985-11-07
1987-09-22
Ward, Robert S.
Seal for a joint or juncture
Seal between relatively movable parts
Relatively rotatable radially extending sealing face member
277152, 277208, F16J 1532
Patent
active
046950630
ABSTRACT:
A seal ring has an annular sealing lip of a polymeric material which bears resiliently about a shaft rotatable relative thereto with a sealing strip and hydrodynamically acting backfeed ribs to one side of the sealing strip. An annular projection projects from the other side of the sealing strip with a radial clearance between a cylindrical or conical interior surface of the annular projection and the shaft. The annular projection is united with the sealing strip in a bending-resistant manner. Damming ribs protrude uniformally about the interior surface of the annular projection. Each damming rib has a leading surface which makes an obtuse angle with the interior surface and is parallel to the axis thereof.
REFERENCES:
patent: 2446380 (1948-08-01), Meyers et al.
patent: 3482845 (1969-12-01), Bertrandi et al.
patent: 3729204 (1973-04-01), Augustin
patent: 3913925 (1975-10-01), Gyory
patent: 4427205 (1984-01-01), Holzer et al.
Forch Hans
Schmitt Wolfgang
Firma Carl Freudenberg
Ward Robert S.
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