Abstract: A barrier of foamed phenolic resin is provided for a barrier connector. In use, the barrier temporarily holds cables in place while a potting agent is used to permanently secure said cables within the barrier connector.

Abstract: A barrier of foamed phenolic resin is provided for a barrier connector. In use, the barrier temporarily holds cables in place while a potting agent is used to permanently secure said cables within the barrier connector.

Abstract: A coupling for a corrugated conduit has a housing of a rigid plastics material with two resilient spring catches on opposite sides to engage between corrugations on the conduit. A layer of a softer, elastomeric material is continuously joined on both the interior and exterior of the housing. On the interior, the softer material extends on a tapering surface to diametrically seal with a range of conduits. On the exterior, the layer of softer material forms both a flange on an annular ledge to seal with a cooperating coupling and manual gripping regions.

Abstract: A mount for supporting a corrugated conduit on a panel has a lower part of circular shape with four catch fingers arranged around it. The lower part is bolted the panel. An upper part has a lower circular boss that is a snap fit in the lower part, being engaged by the spring fingers, and is rotatable about a vertical axis. The upper part has a spring clip of omega shape with an internal rib that engages between corrugations on the conduit when this is pushed into the clip. The lower and upper parts are integral mouldings of a plastics material. The upper part may be provided in a range of sizes to fit different conduits, whilst fitting with a common lower part.

Abstract: A coupling for a corrugated pipe has two retainers hinged integrally with the coupling so that they can be folded down to project through apertures in the coupling and engage between corrugations on the pipe. When folded down in full engagement with the pipe, spring levers on opposite sides of the retainers engage under ledges in the aperture. The levers cannot engage when a retainer does not fully engage between the corrugations thereby making it apparent that the retainer is not fully engaged.

Abstract: A coupling for the end of a corrugated pipe has two catches integrally moulded with the housing of the coupling. The catches are hinged at one end and have a tooth at their other end that engages between the corrugations on the pipe. Two undulating webs link the other end of the catches with the housing to provide an additional resilient restoring force acting on the catches.

Abstract: A coupling for a corrugated pipe is moulded from a plastics material with two locking arms on opposite sides. The locking arms are hinged at one end and have an inwardly-projecting tooth at their other end shaped to extend between corrugations on the pipe. One side of each locking arm is formed with a stop that projects beyond the tooth and is adapted to contact a corrugation on the pipe when force is applied to pull the pipe out of the coupling, so as to limit inward deflection of the locking arms.