Tyco Thermal Controls LLC

Raychem Limited

Pentair Thermal Management LLC

Kenneth McCoy

Robert S Wasley

Peter Wijeratne

Denis I Wales

Neil A Edwards

Paul Hauptly

Robert Wasley

Techniques for leak detection are described. A leak detection module may include a plurality of wires comprising one or more collection points. The leak detection module may further include a capacitor configured to store a charge for powering the module during a power-off state and a plurality of switches to be controlled by a processor. The processor may initiate a predetermined switching sequence when a power-off state has been detected. During the switching sequence, leak detection data may be collected at the one or more collection points. The collected leak detection data may be stored in a set of registers. The leak detection module may transmit the stored leak detection data. Other embodiments are described and claimed.

Sensor-powered wireless cable leak detection

A sensor for detecting the presence of an organic liquid. The sensor includes an a elongate substrate having a first and second opposed surface, and a first sensor surface disposed on at least a portion of the first surface of the substrate and a second sensor surface disposed on at least a portion of the second surface of the substrate. The sensor also includes a bridging electrode electrically coupling the first and second sensor surfaces, a first electrode disposed on the first surface of the substrate and electrically coupled to the first sensor surface, and a second electrode disposed the second surface of the substrate and electrically coupled to the second sensor surface.

Sensor for detecting organic liquids

A device and method for detecting the presence of one or more targeted liquids in volume of space where the targeted liquid is not normally present. The device includes a sensor that can differentiate between the target fluid and a non-target fluid.

Discrete leak detection device and method for discriminating the target fluid

A cable suitable for detecting the presence of corrosive liquids is disclosed. In an embodiment the cable includes two sensing wires wrapped around a core member, at least one of the sensing wires being surrounded by a non-conductive surface layer. In an alternate embodiment the cable includes two sensing wires wrapped around a core member, the sensing wires and core member being encapsulated by a non-conductive surface layer. Preferably, the cable includes insulating wires for detecting the location of a leak. When a corrosive liquid contacts the sensing wires of the cable an electrical connection is created between them.

Sensor cable

An apparatus for detecting the occurrence of an event, e.g. the presence of a liquid leak. The apparatus includes an elongate flexible core consisting of elongate elements which are twisted together. The elongate elements comprise first and second sensing members, which each have an electrically conductive outer surface and are physically separated from one another, and at least two elongate insulating members. These elongate elements are covered by a flexible braid which exerts a compressive force on the core. In one aspect of the invention, the flexible braid undergoes a reversible change in appearance when exposed to electrolyte, indicating the location of a leak.

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Redwood City, CA, United States of America

Kenneth McCoy