US Patent 7581374 Grass cutting unit having compression molded UHMW plastic roller

Patent 7581374 was granted and assigned to The Toro Company (company) on September, 2009 by the United States Patent and Trademark Office.

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Patent

Patent attributes

Current Assignee

Toro

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

7581374

Patent Inventor Names

Scott M. Coffin0

Date of Patent

September 1, 2009

Patent Application Number

11235711

Date Filed

September 26, 2005

Patent Primary Examiner

‌

Arpad Fabian-Kovacs

Patent abstract

A cutting unit for a mower is supported for rolling over the ground by at least one ground engaging roller. The roller may be grooved over its length to comprise a Wiehle roller. The roller is formed by an ultra high molecular weight plastic roller body that is integrally molded over and around a hollow aluminum tube. The aluminum tube has enlarged diameter knurled ends to help hold the roller body on the tube.

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