Sealed axially displaceable slip joint
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United States of America Patent
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Mar 8, 2005
Grant Date -
Nov 18, 2004
app pub date -
May 13, 2003
filing date -
May 13, 2003
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A slip joint includes first and second shafts that are connected for concurrent rotational movement and for relative axial movement, such as by respective pluralities of axially extending spline. A seal can is secured to the first shaft and extends about a portion of the second shaft. A seal assembly is secured to the second shaft and engages a portion of the seal can. The seal assembly includes first and second seals that are each generally concave in shape. Each of the first and second seals is generally V-shaped in cross section, having a radially innermost end, an intermediate portion, and a radially outermost end, wherein the radially innermost and outermost ends are located closer to one another than the radially intermediate portions. the first and second seals are axially spaced apart from one another so as to define an annular space therebetween that can be filled with a sealing material, such as a waterproof grease. The first and second seals can be secured to a backing member that is secured to the second shaft.
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