Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Edward W. Esau0
Thomas G. Schrag0
Michael J. Dresher0
Jeffrey S. Funk0
Date of Patent
July 7, 2009
0Patent Application Number
116203940
Date Filed
January 5, 2007
0Patent Primary Examiner
Patent abstract
The vertically swingable header of a farm machine utilizes a flotation mechanism having a torsion bar as the source of lifting force. The torsion bar is mounted on the header rather than the base machine and is operably coupled with the base machine through loading apparatus that includes a cam and cam follower system. An alternative embodiment utilizes a cam track fixedly mounted on the base machine.
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