Seal device
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Mar 11, 2003
Issued Date -
N/A
app pub date -
Oct 31, 2000
filing date -
May 21, 1993
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A system for providing a seal between a housing and a shaft is formed of at least two ring members connected to each other by relative diametrical expansion with reduced or eliminated axial resilient deformation. The ring members may be held together by an annular protrusion located within a recess. To eliminate play between the protrusion and the recess, the device may be assembled by heating the recess and inserting the protrusion into the recess while the recess is expanded. The improved system can be accurately assembled, with the ring members located very close to each other. The system has improved oil retention and water exclusion properties.
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