Propeller shaft assembly with stiffening feature

Rotary shafts – gudgeons – housings – and flexible couplings for ro – Shafting – Particular vibration dampening or balancing structure

Reexamination Certificate

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C029S525000, C464S181000

Reexamination Certificate

active

07134964

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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patent: 0 471 240 (1992-02-01), None

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