Abstract: A device including: a sensor for monitoring a pressure of a fluid system to produce pressure signals over a period; and a controller configured for: receiving the pressure signals over the period; establishing an operating pressure zone corresponding to the pressure signals over the period, the operating pressure zone is representative of a normal operation zone of the fluid system, the normal operation zone defined by an area bounded by a low pressure level and high pressure level, wherein the high pressure level is disposed at a level at least at a maximum pressure of the pressure signals over the period and the low pressure level is disposed at a level at most at a minimum pressure of the pressure signals over the period.

Abstract: Articles including a surface spreading agent, oilfield water storage systems that employ the articles, and methods of managing an oilfield water storage system are provided herein. In an embodiment, an article includes a film-forming composition and a densifying agent. The film-forming composition includes a surface spreading agent present in an amount of at least 5 weight %, based on the total weight of the film-forming composition. The densifying agent has a higher density than water and the surface spreading agent. The film-forming composition is packaged in an impervious material.

Abstract: A process variable transmitter for use in an industrial process includes a housing having a cavity formed therein. The housing has a barrier which divides the cavity into first and second cavities. Measurement circuitry in the first cavity is configured to measure a process variable of the industrial process. A terminal block assembly is located in the second cavity. A moisture sensor has an electrical characteristic which changes based upon the presence of moisture in the second cavity.

Abstract: A system and method for operating a building heating system. The system includes a controller that operates the heating system in three modes of operation. The controller controls a valve that regulates the flow of steam to the building water loop. By maintaining a constant steam flow rate during peak demand periods, steam consumption during peak demand periods are reduced while maintaining a comfortable environment within the building.

Abstract: A safety valve for interrupting the flow of fuel through a fuel line includes a housing member and a safety valve insert, wherein the housing member houses a portion of the safety valve insert and the valve insert includes a connection end for connecting to a grounding surface to draw electrical current through the safety valve insert, a fusible link, which is broken by electrical current, and a plunger, which is released when the fusible link is broken and interrupts the flow of fuel through a fuel line.

Abstract: The present invention relates to a device for reducing electromagnetic pollution (1) which measures the electromagnetic radiation amount in the environment, and enables to reduce radiation when the radiation amount exceeds a predetermined threshold value.

Abstract: The present invention relates to a device for reducing electro-magnetic pollution (1) which measures the electromagnetic radiation amount in the environment, and enables to reduce radiation when the radiation amount exceeds a predetermined threshold value.

Abstract: A conduit protection system, comprising: a conduit for carrying a fluid; a sealed vessel surrounding the conduit along a protected zone of the conduit; and a valve moveable between a first position for obstructing fluid flow through the protected zone of the conduit and a second position for enabling fluid flow through the protected zone of the conduit, wherein the valve is biased to the first position, and wherein the valve is fluidically coupled to the sealed vessel such that a positive pressure within the sealed vessel is operable to move the valve to the second position against the bias. Also, a method for protecting a fluid carrying conduit.

Abstract: A method, system and an apparatus to automatic lightning safety valve for water supply system are disclosed. An exemplary embodiment provides an apparatus of lightning protection. A sensor circuit of the apparatus receives a electromagnetic signal of an atmospheric electromagnetic field to generate a modified signal and to communicate the modified signal to a control circuit. A control circuit of the apparatus of the lightening circuit causes the valve to automatically close if the modified signal is greater than a specified value. The valve control device is communicatively coupled with the sensor circuit. The apparatus also includes a solenoid valve to stop the flow of a fluid into the structure by closing a fluid line.

Abstract: A backpressure-protected valve suitable for subsea well treatment chemical injection applications includes an improved gate valve, a check valve and a pressure compensator responsive to ambient hydrostatic pressure. The check valve may comprise a poppet valve in a detachable outlet body. The pressure compensator comprises a free piston in a cylinder. The portion of the cylinder on one side of the piston is exposed to seawater whereas the portion of the cylinder on the opposing side of the piston is filled with a selected hydraulic fluid. In this way the valve actuator is not exposed to the corrosive and/or contaminating effects of seawater.

Abstract: A reset relief valve with a body having an inlet port, an outlet port, and an interior wall partially defining an enclosed chamber, a piston disposed in the body and moveable between a first position at which the piston is disposed in fluid flow-blocking relationship between the inlet port and the outlet port of the body and a second position at which the piston is removed from that position, a piston having a head with opposed end surfaces one of which defines a portion of the enclosed chamber and at least one fluid flow passageway extending through the head and providing fluid communication between the enclosed chamber in the body, and a second chamber above a moveable disc in the piston and a pressure sensor in fluid communication with the fluid in the chambers. A preferred embodiment includes data acquisition software for monitoring data and storing pressure and other data to control the operation of the valve.

Abstract: A pressure-equalizing vial access device and method providing closed and sealed reconstitution of vial contents. A rigid container with a fixed internal volume is connected with a vent lumen extending into the vial. As pressure in the vial increases, the pressure is equalized with atmospheric pressure by varying the volume of a compartment within the rigid container. The compartment is formed with a volume control device that automatically varies the volume of the compartment in the rigid container to accommodate and equalize the pressure in the vial by increasing or decreasing the volume of the compartment. In one case the volume control device comprises a sliding disk and in another, a bladder that compresses with an increase in volume in the container and expands with a decrease.

Abstract: An automatic mist-sprayer system comprising a control unit having electronic circuitry adapted to activate the sprayer for a predetermined interval in response to a sensed ambient light condition of desired intensity and duration. The system desirably further includes an electrical power supply and a plurality of spaced-apart sprayer heads. A preferred utility for the system of the invention is spraying dilute solutions of insecticide or insect repellent during the periods of significant insect activity that typically occur around dusk and dawn. Manual overrides and a remote receiving unit are also disclosed for use of the system at times other than dusk and dawn.

Abstract: A valve is provided for use on a control moment gyroscope (CMG) having a housing separating an internal environment from an external environment. The valve includes a valve housing, a valve element, and bellows. The valve housing is configured to couple to the CMG housing and includes an inner surface defining a cavity, an outer surface, and an opening extending therebetween. The valve element is disposed within the valve housing cavity and is movable between a closed position, in which fluid is prevented from flowing through the valve housing opening, and an open position, in which fluid may flow through the valve housing opening. The bellows is disposed within the valve housing and coupled to the valve element and has an internal chamber. The bellows selectively moves the valve element closed and open in response to a differential pressure between the bellows internal chamber and the valve housing cavity.

Abstract: A valve control system comprises a programmable electronic controller. The programmable electronic controller is configured to provide an emergency actuation signal to a motor upon receiving an emergency close signal. The programmable electronic controller is configured to provide a test actuation signal to the motor upon receiving a test close signal. The valve control system further comprises a gas detection input configured to receive a gas detection signal. Receipt of the gas detection signal at least partially meeting a first criterion causes the emergency close signal to be supplied to the controller. The valve control system further comprises a user interface configured to provide the controller with the test close signal in response to a user input. The valve control system further comprises a low battery input configured to receive a low battery signal. Receipt of the low battery signal causes the emergency close signal to be supplied to the controller.

Abstract: A wind sensitive operating system for swimming pools would enable swimming pools to activate cleaning systems during times of high winds. Currently swimming pools cannot sense high wind conditions and altar their running conditions accordingly. This invention would have a control box which could sense high winds and start up swimming pool cleaning systems at a predetermined wind velocity and a predetermined time length of high wind.

Abstract: An emergency gas line shut-off system for automatically preventing a flow of gas into a structure during the detection of emergency conditions. The emergency gas line shut-off system includes a gas valve for mounting on a gas supply line. The gas valve is electrically connected to a central control assembly for controlling the gas valve. The central control assembly preferably comprises control circuitry for determining when the gas valve should be in a closed condition for preventing the flow of gas into a structure. The control circuitry is mounted in a housing and is electrically connected to a detector for detecting a condition requiring the closed condition of the gas valve. The detector may comprise, for example, a smoke detector for detecting smoke, a carbon monoxide detector for detecting carbon monoxide or an earthquake detector for detecting earthquakes.

Abstract: A device and method for shutting off the flow of gas to a structure, such as a residence, when a fire is detected in the structure. The device has a fire detector for providing a status signal to indicate the presence of fire in a structure, an actuator in communication with the fire detector, and a shut-off valve located on a gas line and connected to the actuator. When the status signal is received by the actuator, the actuator causes the valve to close, thereby shutting off the flow of gas to the structure. The device also includes one or more of the following: a secondary electric power source, disturbance prevention circuitry, a shut-off valve position indicator, a manually operated means of closing the shut-off valve, and an alarm indicator for indicating the presence of fire in the structure. The method involves detecting a fire and providing a status signal to an actuator. Then the actuator moves the shut-off valve from an open position to a closed position.