Kohler Mira Limited

Sean Patrick Conway

Kevin Taylor Peel

Nicholas John Beck

Bruce Lewin John Hayward

A valve comprising a first flow control valve for controlling flow of a first fluid from a first source; a second flow control valve for controlling flow of a second fluid from a second source; a first actuator that controls movement of the first flow control valve; a second actuator that controls movement of the second flow control valve; and a fail-safe device that holds each of the first and second actuators in a control position in response to electric power being supplied to the valve, wherein the fail-safe device releases the first and second actuators in response to an absence of electric power being supplied to the valve such that the first actuator and the first flow control valve move toward a closed position and such that the second actuator and the second flow control valve move toward a closed position.

Valve with fail-safe device

A power operated valve for controlling fluid flow is provided with a fail-safe device responsive to failure of the power supply to the valve to shut-off fluid flow. A valve member is coupled to linear actuator for movement towards and away from a closed position for controlling fluid flow through the valve. The linear actuator is held in a control position by the fail-safe device for normal operation of the valve with the power supply on. The fail-safe device responds to failure of the power supply to release the linear actuator. When the linear actuator is released, energy stored n a spring while the linear actuator was held in the control position is released and biases the linear actuator away from the control position causing the valve member to move to the closed position to shut-off fluid flow.

A thermostatic mixing valve for hot and cold water has two-stage inlet chambers for the hot and cold water flows respectively. The inlet chambers distribute the flows uniformly with respect to porting for admitting the flows to the mixing chamber to reduce asymmetric flow patterns and promote thorough mixing of the flows within the mixing chamber.

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Cranham, United Kingdom

Sean Patrick Conway