Washer with collapsible protrusions for accommodating pivot gap material thickness
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United States of America Patent
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Dec 29, 2015
Grant Date -
Aug 15, 2013
app pub date -
Feb 8, 2013
filing date -
Feb 9, 2012
priority date (Note) -
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Abstract
A deformable washer incorporated into a pivot assembly including a support sector and a rotatable sector pivotally mounted to the support sector by aligning apertures in the sectors which receive a widthwise inserting pin. The washer includes a disk shaped body defining an open interior and such that the body is supported by the pin in a desired sandwiching arrangement between the sectors. Protrusions extend from either or both of first and second annular extending faces of the body exhibiting deformable characteristics such that, a laterally applied compressive force associated with the stacking assembly results in collapse of the protrusions without otherwise affecting the structural integrity of the underlying body and allows for variations in material thickness resulting in a lateral gap at the pivot while reducing instances of lateral play.
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