GREASE GUN COUPLER
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United States of America Patent
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Issued Date -
Apr 30, 2015
app pub date -
May 17, 2013
filing date -
May 29, 2012
priority date (Note) -
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Abstract
A grease gun coupler for delivering grease from a tube of a grease gun to a grease fitting is provided. Insertion of a grease fitting in the coupler pushes in a piston, allows a bias or an operator to push an outer sleeve towards the grease fitting, which biases the ball bearings inwards, thus securing the grease fitting in the coupler. Retraction of the outer sleeve releases the ball bearings, thus allowing another bias to push back the piston and expel the grease fitting.
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