Spherical seal element
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United States of America Patent
Stats
-
Mar 16, 1982
Grant Date -
N/A
app pub date -
Feb 27, 1980
filing date -
Aug 11, 1978
priority date (Note) -
Expired
status (Latency Note)
Importance
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.
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Cited Art Landscape
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