US 11,808,019 B2
Universal rough-in valve and manifold
Hsiao Chang Li, Edison, NJ (US); and Walter Pitsch, Washington, NJ (US)
Assigned to AS America, Inc., Piscataway, NJ (US)
Appl. No. 17/602,185
Filed by AS America, Inc., Piscataway, NJ (US)
PCT Filed Apr. 10, 2020, PCT No. PCT/US2020/027641
§ 371(c)(1), (2) Date Oct. 7, 2021,
PCT Pub. No. WO2020/210606, PCT Pub. Date Oct. 15, 2020.
Claims priority of provisional application 62/832,591, filed on Apr. 11, 2019.
Prior Publication US 2022/0145597 A1, May 12, 2022
Int. Cl. E03C 1/02 (2006.01); E03C 1/042 (2006.01); F16K 11/085 (2006.01); F16K 27/00 (2006.01)
CPC E03C 1/021 (2013.01) [E03C 1/042 (2013.01); F16K 11/0853 (2013.01); F16K 27/003 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A valve manifold for a universal rough-in valve, the manifold comprising
a first manifold inlet; a second manifold inlet;
a first manifold outlet; a second manifold outlet;
a cavity configured to receive a fluid mixing valve;
a first transition in flow communication with the cavity and the first manifold inlet;
a second transition in flow communication with the cavity and the second manifold inlet;
a first channel in flow communication with the cavity and the first manifold outlet;
a second channel in flow communication with the cavity and the second manifold outlet;
wherein
the manifold comprises a venturi tube comprising a first section and a second section;
the venturi tube first section has a larger cross-sectional area than the second section;
the venturi tube first section is disposed in the second manifold outlet;
the venturi tube is permanently fixed in the second manifold outlet; and
the venturi tube extends from the second manifold outlet towards the first manifold outlet; and
wherein
the manifold is configured to be removably disposed in a rough-in valve chamber; and
the manifold is configured to be removably coupled to the fluid mixing valve.