Automatic trip test simulator
First Claim
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1. A trip test device comprising:
- at least one solenoid valve for coupling to a network of pipes of a dry pipe sprinkler system;
a liquid detector for coupling to the network of pipes to detect a flow of water in the network; and
a timer coupled to the at least one solenoid valve such that upon the solenoid valve changing to an open state, the timer starts a counter to define a start time of a fluid detection test, the timer being coupled to the liquid detector such that upon the detector detecting water in the pipes, the timer stops the counter to define a stop time of the fluid detection test to define an elapsed time of the fluid detection test as a difference between the start time and the stop time.
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Accused Products
Abstract
Systems and methods to measure fluid delivery times in a piping system and more particularly a dry pipe fire protection system. A device is provided that includes at least a solenoid valve for coupling to a network of pipes of a dry pipe sprinkler system and a liquid detector for coupling to the network of pipes to detect a flow of water in the network. A timer is coupled to the solenoid valve. Upon operation of the solenoid valve, the timer simultaneously initiates a start time of a fluid detection test. The timer is preferably coupled to the liquid detector such that upon the detector detecting water, the timer defines a stop time of the fluid detection test.
8 Citations
29 Claims
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1. A trip test device comprising:
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at least one solenoid valve for coupling to a network of pipes of a dry pipe sprinkler system; a liquid detector for coupling to the network of pipes to detect a flow of water in the network; and a timer coupled to the at least one solenoid valve such that upon the solenoid valve changing to an open state, the timer starts a counter to define a start time of a fluid detection test, the timer being coupled to the liquid detector such that upon the detector detecting water in the pipes, the timer stops the counter to define a stop time of the fluid detection test to define an elapsed time of the fluid detection test as a difference between the start time and the stop time. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A trip test device comprising:
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means for simulating an actuated sprinkler in a network of pipes of a dry sprinkler system; means for detection of water in the network of pipes; and means for counting a unit of time being coupled to each of the simulating means and the detection means to determine a fluid delivery time of the system, the counting means starting upon the simulating means changing to an open state to define a start time of the fluid delivery time, and the counting means stopping upon the detection means detecting water in the network of pipes to define an end time of the fluid delivery time to define an elapsed time of a fluid detection test as a difference between the start time and the stop time. - View Dependent Claims (20, 21, 22)
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23. A sprinkler system comprising:
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a water supply; a plurality of fire protection sprinklers interconnected by at least one branch line of piping; a fluid control valve controlling the flow of water from the supply to the plurality of fire protection sprinklers; an inspector'"'"'s test connection coupled to at least one of the fire protection sprinklers; and a fluid delivery detection device having at least one simulation-detection subcomponent coupled to the at least one branch line of piping proximate at least one sprinkler and a timer-initiating sub-component to simultaneously initiate operation of the simulation-detection subcomponent and a counter of the timer-initiating component, the simulation-detection subcomponent comprises an electrically operated solenoid valve and a two-conductor water probe having a continuity circuit. - View Dependent Claims (24, 25, 26, 27, 28, 29)
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Specification