Valves and valve actuation – With material guide or restrictor – Baffle or zigzag flow restrictor
Reexamination Certificate
2005-02-01
2005-02-01
Hirsch, Paul J. (Department: 3754)
Valves and valve actuation
With material guide or restrictor
Baffle or zigzag flow restrictor
C181S234000
Reexamination Certificate
active
06848668
ABSTRACT:
There is provided a silent-operating device for feeding water into a tank, in particular for filling a lavatory flush tank; the silencing effect is achieved by feeding the water through a chamber housing flow deflecting members; the members are perforated members arranged successively and spaced apart in the flow direction inside the chamber, and have respective numbers of through holes; the holes of consecutive members being offset with respect to one another to define a labyrinth path, i.e. a number of winding coil-like or zigzag paths, inside the chamber.
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patent: 4125129 (1978-11-01), Baumann
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European Search Report of Nov. 11, 2003.
Da Costa Victor Antonio Ferreira
De Oliveira Antonio Manuel Moura
Figueiredo Noe
Gameiro Lopes Antonio Manuel
Harness & Dickey & Pierce P.L.C.
Hirsch Paul J.
Oliveira & Irmao S.A.
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