Flow control device and flow control method
First Claim
Patent Images
1. A water flow control device including:
- a conduit for connection to a water supply;
a plurality of valves arranged in parallel and connected to the conduit to receive water therefrom;
a programmable controller operatively associated with the valves to cause operation thereof between a closed and an open configuration;
a water outlet conduit connected to each of the valves so that said conduit receives water from each of the valves when the valves are in the open configuration; and
,a pressure sensor downstream of the valves and operatively associated with the controller to provide a signal thereto indicative of water pressure downstream of the valves.
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Accused Products
Abstract
A water flow control device (27) that may, for example, deliver water to a domestic dwelling (10). The device (27) includes a plurality of valves, which may include three valves (12, 13, 14). The valves (12, 13) are connected to an outlet conduit (16) by means of a flow restriction device (15). The valves (12, 13, 14) are electronically operated and are controlled by a programmable logic controller (PLC) (17).
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Citations
14 Claims
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1. A water flow control device including:
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a conduit for connection to a water supply; a plurality of valves arranged in parallel and connected to the conduit to receive water therefrom; a programmable controller operatively associated with the valves to cause operation thereof between a closed and an open configuration; a water outlet conduit connected to each of the valves so that said conduit receives water from each of the valves when the valves are in the open configuration; and
,a pressure sensor downstream of the valves and operatively associated with the controller to provide a signal thereto indicative of water pressure downstream of the valves. - View Dependent Claims (2, 3, 4, 5, 8, 9)
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6. A water flow control device including:
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a conduit for connection to a water supply; a plurality of valves arranged in parallel and connected to the conduit to receive water therefrom; a programmable controller operatively associated with the valves to cause operation thereof between a closed and an open configuration; a water outlet conduit connected to each of the valves so that said conduit receives water from each of the valves when the valves are in the open configuration; at least one flow restriction operatively associated with a corresponding one of the valves and arranged between the water supply and the outlet conduit; and wherein at least one other of the valves couples the water supply to the outlet conduit via an unrestricted coupling. - View Dependent Claims (7, 10, 11, 12, 13)
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14. A water flow control device including:
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a conduit for connection to a water supply; a plurality of valves arranged in parallel and connected to the conduit to receive water therefrom; a programmable controller operatively associated with the valves to cause operation thereof between a closed and an open configuration; a water outlet conduit connected to each of the valves so that said conduit receives water from each of the valves when the valves are in the open configuration a pressure sensor downstream of the valves and operatively associated with the controller to provide a signal thereto indicative of water pressure downstream of the valves; a flow meter downstream of the valves and to provide a signal to the controller indicative of flow through the valves; a control program recorded within the controller and executable by the controller to cause the device to detect a demand for water at the outlet supply and to selectively open at least one of the valves for a first predetermined period of time, and subject to detection of a continued demand for water after expiration of the first predetermined period of time, to selectively open at least another of the valves for a second predetermined period of time; an interface operatively associated with the controller via which an operator can change operating parameters of the controller; and
,a modem device operatively associated with the controller to provide signals thereto to operate the controller wherein the signals comprise command to modify the predetermined periods of time and to open and close the valves.
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Specification