LUBRICANT CARTRIDGE FOR WHEEL END ASSEMBLIES
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United States of America Patent
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Issued Date -
Jan 31, 2008
app pub date -
Jul 26, 2007
filing date -
Jul 27, 2006
priority date (Note) -
Abandoned
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Abstract
A wheel end assembly of a heavy-duty vehicle includes a pair of bearings mounted on an axle spindle, and a wheel hub rotatably mounted on the bearings so that the bearings, the axle spindle, and the wheel hub generally define a cavity in the wheel end assembly. The wheel hub is formed with a port that communicates with the cavity and atmosphere. A lubricant cartridge includes a generally rigid body defining a chamber for containing a predetermined amount of semi-fluid grease. The cartridge also includes a generally rigid nozzle that is connected to the body and is in fluid communication with the chamber. The nozzle defines an opening and is formed with features for removably connecting the cartridge to the wheel hub port. Semi-fluid grease is urged from the cartridge chamber through the nozzle, through the port, and into the cavity to lubricate the wheel end assembly.
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