Spherical seal element

Details Spherical seal element Spherical seal element

1980-02-27

1982-03-16

Smith, Robert I.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277205, 277214, 403131, 403137, F16J 1532

Patent

active

043197566

ABSTRACT:
The present invention relates to a seal which is capable of sealing against and rotatably supporting a spherical formation.
The seal 10 has at least one annular lip portion 12 which has at least one sealing surface 18, 19 which is spherically contoured to sealingly engage the spherical formation 40. The lip portion is resilient in an axial direction but rigid enough to resist compressive deformation.
The seal is particularly useful for sealingly supporting a hopper stirring member which extends through a wall of the hopper.

REFERENCES:
patent: 2176355 (1939-10-01), Otis
patent: 2192805 (1940-03-01), Seamark
patent: 3028183 (1962-04-01), Phillips
patent: 3356333 (1967-12-01), Scaramucci
patent: 3445087 (1969-05-01), Priese
patent: 3776558 (1973-12-01), Maurer
patent: 3778070 (1973-12-01), Shimura

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