Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Gerald J. Heber0
Date of Patent
March 25, 2008
Patent Application Number
10970776
Date Filed
October 20, 2004
Patent Citations Received
Patent Primary Examiner
Patent abstract
An improved spiral conveyor self-stacking drive system designed to increase the life of a multiple link conveyor belt by reducing the stresses exerted on the belt when disposed in a spiral configuration. The drive system includes a conical guide ring upon which the belt is wound when disposed in a spiral configuration. During use, the belt is tightly wrapped around the guide ring. The slope of the conical guide ring's sidewall is sufficient so that the upper tiers are stacked slightly inward and offset over the lower tiers over the entire length of the guide ring, thus gradually reducing the lateral forces exerted on the unsupported upper tiers.
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