Flapper finger valve assembly

Acoustics – Sound-modifying means – Muffler – fluid conducting type

Reexamination Certificate

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Details

C181S236000, C181S254000, C251S084000, C137S469000, C137S505110, C137S847000

Reexamination Certificate

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06899199

ABSTRACT:
A flapper finger valve assembly for use in an exhaust system. The flapper finger valve includes a tube having a plurality of orifices therethrough. The flapper finger valve assembly also includes a plurality of flapper finger valves generally having a C-shape wherein the flapper finger valves are arranged on an outside surface of the tube. The flapper finger valves are capable of radial movement with respect to the tube. A plurality of retainers generally having a C-shape are arranged around the flapper finger valve. These retainers will define a maximum radial movement for such flapper finger valves on the tube. The flapper finger valve assembly also includes a fastener which will secure the flapper finger valves between a tube and retainers in the flapper finger valve assembly.

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patent: 6167699 (2001-01-01), Johnston et al.
patent: 6189650 (2001-02-01), Inuzuka et al.
patent: 6435302 (2002-08-01), Chen
patent: 6457553 (2002-10-01), Goplen et al.
patent: 6622819 (2003-09-01), Reynolds
patent: 2001020718 (2001-01-01), None

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