Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
September 26, 2006
Patent Application Number
11033519
Date Filed
January 11, 2005
Patent Primary Examiner
Patent abstract
A spring biased pivot assembly for operative connection across a lower edge of a self-returning door structure. An adjustable spacer projects outwardly from a downwardly extending shoulder structure and towards a tension pin in tangential relation to the axis of rotation. The spacer contacts the tension pin when the door structure is in its normal position thereby maintaining separation between the tension pin and the shoulder structure and blocking complete release of spring tension.
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