Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Date of Patent
June 2, 2009
Patent Application Number
11451784
Date Filed
June 13, 2006
Patent Primary Examiner
Patent abstract
In a plastic hydraulic tensioner having an oil reservoir formed as a recess in a portion of a synthetic resin tensioner body adapted to engage a tensioner mounting surface on an engine block, metal bushings are insert-molded in the synthetic resin tensioner body for receiving mounting bolts by which the tensioner is secured to an engine block. The outer circumferential surface of each bushing is provided with at least one flat portion or at least one concave groove, and a protruding portion of the bushing is formed adjacent the end of the flat or groove remote from the engine block-contacting end of the bushing.
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