US Patent 7556131 Transmission housing

Patent 7556131 was granted and assigned to Caterpillar Inc. on July, 2009 by the United States Patent and Trademark Office.

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Is a

Patent

Patent attributes

Current Assignee

Caterpillar Inc.

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

7556131

Date of Patent

July 7, 2009

Patent Application Number

11274377

Date Filed

November 15, 2005

Patent Primary Examiner

‌

Richard M Lorence

Patent abstract

A transmission housing for an automatic transmission that includes a first and second plurality of circumferentially spaced inwardly extending sets of protrusions connected to an inner surface of the transmission housing configured to engage clutch assemblies of a planetary transmission. The sets of protrusions are offset from each other.