The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 17, 2000
Filed:
Jul. 10, 1998
John A Chapman, Wahoo, NE (US);
Valmont Industries, Inc., Valley, NE (US);
Abstract
A drive tower for a self-propelled irrigation system is described which is of the track type. The drive tower includes an elongated frame having opposite ends. A drive pulley is mounted at one end of the frame while a tail pulley is mounted at the other end of the frame. The drive pulley comprises a pair of spaced-apart, disc-shaped plates having spaced-apart rods secured thereto and extending therebetween at the periphery thereof for engagement with the interior surface of the belt. The interior surface of the traction belt is provided with a plurality of longitudinally spaced-apart lugs which are received between the rods on the drive wheel. The tail pulley and the idler pulleys have peripheries which receive the lugs on the inner surface of the belt. The exterior surface of the belt is also provided with a plurality of transversely extending traction lugs. The belt is driven by means of a double reduction gear drive.