Seal unit
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United States of America Patent
Stats
-
Jul 14, 1981
Grant Date -
N/A
app pub date -
Oct 15, 1979
filing date -
Mar 11, 1978
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A seal unit for providing a fluid seal between a shaft and a housing. THe seal unit includes a seal element screw threadedly received within an annular casing. The seal is made of a rigid but resilient material so that on rotation of the seal element within the casing the seal element is caused to deflect to bring it into sealing engagement with the shaft. Such an arrangement makes it possible to use a seal element having an internal diameter larger than the shaft to be sealed so that the seal element may be slid over the shaft without causing damage to the sealing surface of the seal element.
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Family
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Cited Art Landscape
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