Leak detection system for pressurized pipeline

Abstract

A leak detection system for a pressurized pipeline used in conjunction with a fluid control valve having an electric actuator or with an alarm signaling device. The leak detection system includes a chamber surrounding the pipeline. A normally flat or planar thin sheet of material has a pair of opposed ends brought together to form a cylinder around the pipeline so that the sheet has a spring force when in a cylindrical position to a normal flat position. A seal between the cylinder and the pipeline forms a closed chamber around the pipeline. At least one fastener holds the opposed ends of the sheet together in the cylindrical position unless the force overcomes the fastener. A switch detects movement of the cylinder toward the flat position and the switch is connected to the actuator in order to close the valve.

Dependencies are inferred from the claim text.