Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Donald W. Dine0
Craig A. Campbell0
Date of Patent
November 14, 2006
0Patent Application Number
106444410
Date Filed
August 20, 2003
0Patent Primary Examiner
Patent abstract
A propeller shaft assembly includes a thin-walled tubular member, a connecting member fixed to each end of the tubular member, and a support member fixed within the tubular member. The support member includes a foamed plastic impregnated with a high modulus resin or cement extending a first length (L1) within the tubular member and engaging an interior surface of the tubular member to increase the bending frequency of the propeller shaft assembly.
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