US 12,442,165 B2
Plastic integrated anti-scald device
Hsiao Chang Li, Edison, NJ (US); Jesus Garcia, Monterrey (MX); Enrique Gonzalez-Corona, Garcia (MX); Victor Loredo, Apodaca (MX); and Jose David Hernandez, Escobedo (MX)
Assigned to AS America, Inc., Piscataway, NJ (US)
Appl. No. 18/577,117
Filed by AS America, Inc., Piscataway, NJ (US)
PCT Filed Jul. 19, 2022, PCT No. PCT/US2022/073902
§ 371(c)(1), (2) Date Jan. 5, 2024,
PCT Pub. No. WO2023/004325, PCT Pub. Date Jan. 26, 2023.
Claims priority of provisional application 63/223,727, filed on Jul. 20, 2021.
Prior Publication US 2024/0209603 A1, Jun. 27, 2024
Int. Cl. G05D 23/13 (2006.01); E03C 1/04 (2006.01); G05D 23/02 (2006.01)
CPC E03C 1/041 (2013.01) [G05D 23/022 (2013.01); G05D 23/134 (2013.01)] 19 Claims
OG exemplary drawing
 
1. An anti-scald assembly for a faucet housing comprising:
a polymeric manifold housing comprising an anti-scald cavity, a mixing cavity, a hot water inlet, a cold water inlet, a mixed water outlet, and an actuator cavity housing a valve;
an anti-scald device housed within the anti-scald cavity of the polymeric manifold housing, the anti-scald device comprising a thermal actuator coupled to a plunger, wherein the thermal actuator and the plunger are held in an open position within the anti-scald cavity with a bias spring,
wherein, when the valve is actuated, mixed water from the mixing cavity is configured to flow to a sensing region of the anti-scald cavity and to the mixed water outlet, the mixed water being formed by cold water that is configured to flow from the cold water inlet to the mixing cavity and hot water that is configured to flow from the hot water inlet to the mixing cavity,
wherein, when a temperature of the mixed water reaches or exceeds a pre-set temperature in the sensing region of the anti-scald cavity, the thermal actuator is configured to expand such that the thermal actuator moves the plunger of the anti-scald device along a longitudinal axis of the anti-scald cavity to a closed position to close off the hot water inlet, and
wherein the longitudinal axis of the anti-scald cavity is at an angle from 10 to 85 degrees relative to a longitudinal axis of the actuator cavity.