Hydraulic and earth engineering – Fluid control – treatment – or containment – Wave generation or enhancement
Reexamination Certificate
2008-05-20
2008-05-20
Mayo, Tara L. (Department: 3671)
Hydraulic and earth engineering
Fluid control, treatment, or containment
Wave generation or enhancement
C004S491000, C222S189070, C261SDIG022, C210S456000, C239S428500
Reexamination Certificate
active
11357853
ABSTRACT:
A wave generator comprises a seat; a positioning ring a wave generating unit received in an upper side of the seat; the wave generating unit being formed by a flow-steady base and a flow-collecting mask; the flow-steady base having a central platform; an upper surface of the central platform having a plurality of projecting blocks which are annularly arranged; the spaces between projecting blocks being formed as flow channels; an inner wall of the wave generating unit being formed with a plurality of longitudinal slots for draining water; a positioning unit for positioning the flow-steady base and the flow-collecting mask precisely; a filtering web having a plurality of holes which formed as an umbrella shape; a positioning rod extending from a central lower side of the web; and a front end of the positioning rod being formed an enlarged tapered head.
REFERENCES:
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patent: 3684191 (1972-08-01), Shames et al.
patent: 5114072 (1992-05-01), Barhydt, Sr.
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patent: 6902123 (2005-06-01), Grether et al.
patent: 2006/0011748 (2006-01-01), Ferrari
patent: 2006/0273203 (2006-12-01), Denzler
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