US Patent 7730645 Dredge cutterhead

Patent 7730645 was granted and assigned to ESCO Corporation on June, 2010 by the United States Patent and Trademark Office.

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Is a

Patent

Patent attributes

Current Assignee

ESCO Corporation

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

77306450

Patent Inventor Names

Charles G. Ollinger, IV0

Date of Patent

June 8, 2010

Patent Application Number

108890940

Date Filed

July 13, 2004

Patent Primary Examiner

‌

Thomas A Beach

Patent abstract

An assembly for mounting an excavating tooth particularly suited for a dredge cutterhead includes a base, an adapter, and a lock. The base includes a convex, curved bearing surface that abuts a concave, curved bearing surface on the adapter. The curved bearing surfaces are able to maintain substantially full contact with each other under transverse loading. The undersurface of the base is formed with a groove to improve the strength and durability of the weld.