Abstract: A fluid sensor comprises a sensor housing, a sensor package, an actuator and a switch. The sensor package is disposed within the sensor housing and includes first and second screens and at least one sensing membrane. The sensing membrane is disposed between the first and second screens and is adapted to expand when exposed to a predetermined quantity of a first predetermined fluid. The actuator is disposed proximate the sensor package within the sensor housing and moveable between a first position and a second position through an intermediate position. The switch is disposed proximate the actuator and is operable between closed and open positions. When the actuator is in the second position at least a portion of the actuator depresses the switch to control an electrical circuit connected therewith.

Abstract: A fluid sensor comprises a sensor housing, a sensor package, an actuator and a switch. The sensor package is disposed within the sensor housing and includes first and second screens and at least one sensing membrane. The sensing membrane is disposed between the first and second screens and is adapted to expand when exposed to a predetermined quantity of a first predetermined fluid. The actuator is disposed proximate the sensor package within the sensor housing and moveable between a first position and a second position through an intermediate position. The switch is disposed proximate the actuator and is operable between closed and open positions. When the actuator is in the second position at least a portion of the actuator depresses the switch to control an electrical circuit connected therewith.

Abstract: Systems and methods for preparing presentation instruments for distribution. Some of the methods include reading a code from a distribution stock, accessing a database and determining a presentation instrument to be associated with the distribution stock, selecting the presentation instrument, and associating the presentation instrument with the distribution stock. The various systems include hardware and/or software components for implementing the methods.

Abstract: A fluid sensor comprises a sensor housing, a sensor package, an actuator and a switch. The sensor package is disposed within the sensor housing and includes first and second screens and at least one sensing membrane. The sensing membrane is disposed between the first and second screens and is adapted to expand when exposed to a predetermined quantity of a first predetermined fluid. The actuator is disposed proximate the sensor package within the sensor housing and moveable between a first position and a second position through an intermediate position. The switch is disposed proximate the actuator and is operable between closed and open positions. When the actuator is in the second position at least a portion of the actuator depresses the switch to control an electrical circuit connected therewith.

Abstract: A system for processing presentation instruments that includes a presentation instrument reservoir, a presentation instrument reader, a distribution stock holder, a distribution stock reader, two or more motor systems for advancing distribution stock and presentation instruments, and attaching the presentation instruments to the distribution stock. In some cases, the motor systems can interface to an interface controller via a serial interface, and the interface controller can be coupled to a process control computer via an Ethernet connection.

Abstract: A system for processing presentation instruments that includes a presentation instrument reservoir, a presentation instrument reader, a distribution stock holder, a distribution stock reader, two or more motor systems for advancing distribution stock and presentation instruments, and attaching the presentation instruments to the distribution stock. In some cases, the motor systems can interface to an interface controller via a serial interface, and the interface controller can be coupled to a process control computer via an Ethernet connection.

Abstract: Systems and methods for preparing presentation instruments for distribution. Some of the methods include reading a code from a distribution stock, accessing a database and determining a presentation instrument to be associated with the distribution stock, selecting the presentation instrument, and associating the presentation instrument with the distribution stock. The various systems include hardware and/or software components for implementing the methods.

Abstract: A method and apparatus for detecting and locating fluid leaks, particularly liquid leaks, and determining whether the leaking liquid being detected is a non-conductive liquid such as a hydrocarbon or a conductive liquid such as water utilizes a composite detection cable having a pair of insulated conductors and a pair of uninsulated conductors. Pulses are applied to the insulated conductors and leaks are detected and located utilizing time domain reflectometry (TDR) techniques. The resistance between the uninsulated conductors is measured to determine whether or not the leak is conductive.

Abstract: A corrosion resistant cable for use in electrical detection systems for fluid leaks in pipelines and the like includes a central electrical conductor, annular spacer means of electrically insulating material disposed around the central conductor, the annular spacer having a plurality of void spaces for receiving leakage fluid, and an annular sheath disposed around the spacer in concentric relation with the central conductor, the annular spacer formed of a plurality of electrically conductive wires, said wires having a coating of corrosion resistant material for protection against water, acids, alkalis, solvents or other liquids or environmental contaminants that may be present in the vicinity. An uninsulated wire may be incorporated in the sheath to cooperate with an uninsulated central conductor to detect conductive liquids, thereby allowing a leak detection system utilizing the cable to distinguish between leaks of conductive and non-conductive liquids.

Abstract: An alarm system includes alarm monitoring subsystems coupled by communication links to a central alarm processing subsystem. Each alarm processing subsystem includes sensor strings for detecting alarm conditions in a monitored region and means for locating a detected alarm condition along the length of a sensor string. An alarm message including a system identifier, a sensor string identifier and the distance of the alarm condition along the sensor string is communicated to the alarm processing system. The alarm processing system displays a stored representation of the monitored region when an alarm message is received. The system and sensor identifiers and the cable distance data are used to convert the cable distance into the coordinates of the physical location of the alarm condition and a marker of the alarm condition id displayed with the representation of the monitored region.

Abstract: A leak detector and locator utilizes an electrical cable disposed in proximity to fluid carrying pipes or other area wherein a leak may occur. Pulses are applied to the cable and the reflected waveform is analyzed to detect changes in the characteristic impedance of the cable caused by fluid penetrating the insulation of the cable. A different portion of the waveform corresponding to a different point on the cable is sampled after each pulse is generated and stored until the entire waveform has been sampled and stored. Subsequent samples of the waveform are compared with the stored waveform and a leak is indicated if the subsequently sampled waveform differs from the stored waveform by a predetermined amount.