Is a
Patent attributes
Patent Applicant
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
David W. Bogle0
Casper Fedde Talsma0
Date of Patent
July 17, 2018
Patent Application Number
15337147
Date Filed
October 28, 2016
Patent Citations Received
Patent Primary Examiner
Patent abstract
A spiral conveyor for positively driving a conveyor belt along a helical path. The spiral conveyor includes a rotating cylindrical tower with parallel drive members extending from the bottom to the top of the tower on its periphery. Each drive member includes an outwardly protruding ridge that varies in height from the bottom to the top of the tower. The variations in height facilitate the belt's entry onto and exit from the tower and robust, positive driving engagement with the inside edge of the belt along the majority of its path along the tower.
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