Tunable damper for a torque transferring assembly

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

Reexamination Certificate

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Details

C181S207000

Reexamination Certificate

active

07549927

ABSTRACT:
A tunable damper for a torque transferring assembly having a tubular shaft including an inner surface defining an elongated cavity includes an input channeling portion and an output channeling portion, wherein each channeling portion is formed from a first predetermined foam material having a first density and a diameter sufficient for providing a resilient bias force against the inner surface of the tubular shaft. The tunable damper further includes at least one absorber formed from a second predetermined foam material having a second density different from the first predetermined foam material and first density, respectively. The at least one absorber is positioned between the input and output channeling portions for attenuating a first predetermined range of frequencies of noise produced or transmitted by the torque transferring assembly.

REFERENCES:
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patent: 2005/0126848 (2005-06-01), Siavoshai et al.
patent: 2007/0072688 (2007-03-01), Dickson et al.
Reilly Foam Co., Quality Fabricated Foam Products, 1998-2006, [online], [retrieved on Dec. 15, 2008] Retrived from the Internet: URL: www.reillyfoam.com/hyfonic.htm.

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