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US Patent 7451989 Seal

Patent 7451989 was granted and assigned to PARKER-HANNIFIN CORPORATION on November, 2008 by the United States Patent and Trademark Office.

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Current Assignee
PARKER-HANNIFIN CORPORATION
PARKER-HANNIFIN CORPORATION
Patent Jurisdiction
United States Patent and Trademark Office
United States Patent and Trademark Office
Patent Number
7451989
Patent Inventor Names
Stephen S. Stone1
D. Gregory More1
Kenneth W. Cornett1
Paul A. Dudzinski1
Date of Patent
November 18, 2008
Patent Application Number
11338975
Date Filed
January 25, 2006
Patent Primary Examiner
‌
Vishal Patel
Patent abstract

A seal has first and second spring elements each having first and second surfaces along a bellows cross-section and extending between first and second edges. A spreader is secured to an endplate between the first edges of the first and second elements to capture first edge portions of the first and second elements.

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