Abstract: Disclosed is an electrically conductive body which can be attached to a non-conductive sealing element in a pipe joint to render the resulting pipe joint electrically conductive. The electrically conductive body may be a clip of generally a C shape made of or incorporating an electrically conducting material, such as copper, that is attachable to the sealing element. However, the electrically conductive device may take other forms depending on the configuration of the sealing element and the pipe joint.

Abstract: A twin tower gas drying system for cleaning and drying a stream of unpurified pressurized gas received from a source thereof for use of a pneumatic system. The drying system includes a manifold block provided with the plurality of ports. A separator and sump is connected to such block and to one of the ports for initially separating moisture and particulates from such stream of unpurified gas, and for directing the remainder of the stream to the one port in the block. A pair of desiccant containing canisters are threadably mounted on a surface of the block opposite that of the separator and sump by two respective threaded shuttle valves. The canisters and shuttle valves are, in addition, connected in fluid communication with certain of the ports provided in the block for supplying and removing pressurized air from the canisters. A port is provided for discharging dry clean air from the block. Other ports provided in the block exhaust purged air to the atmosphere.

Abstract: Apparatus is provided for detecting losses in a branched optical fibre network comprising a first optical fibre and a plurality of second optical fibres each of which is coupled to the first optical fibre. The first optical fibre constitutes a main line, and the second optical fibres constitute branch lines. The apparatus comprises launch means for launching a carrier wave into the main line, respective modulators in each of the branch lines for modulating the carrier wave in that branch line, returns for returning the modulated signals along the branch lines to the main line, and monitors for monitoring the main line for changes in the modulation of the returned signals. The modulators are such that each modulates the carrier wave differently.

Abstract: An intrauterine pressure catheter system for monitoring pressure in the uterus of a mother during labor and delivery. The system includes a reusable junction box with a needle communicating directly to a pressure transducer sensor. The sensor transmits changes in pressure to a conventional pressure monitor. A connector attached to the catheter is pushed into the junction box and is held in place by a plastic latch. Inside this connector are an elastomeric plug and an adjacent diaphragm. When the connector is installed in the junction box, the needle pierces the plug and the tip enters the air-filled volume between the plug and the diaphragm. Fluid pressure in the catheter is communicated to the diaphragm surface and, in turn, passed to the air in the volume between the diaphragm and the plug. Thus, the intrauterine pressure is transmitted directly to the sensor. The system may be zeroed to atmosphere by simply removing the connector from the junction box.