An example sewer preparation from the main (PFM) device provides for the inspection and preparation of the sewer pipe from the main sewer pipe. The PFM device provides for the insertion of one or more individual and separately controllable tools into the sewer pipe. The tools include a clean out tool and a camera.

An example sewer preparation from the main (PFM) device provides for the inspection and preparation of the sewer pipe from the main sewer pipe. The PFM device provides for the insertion of one or more individual and separately controllable tools into the sewer pipe. The tools include a clean out tool and a camera.

The invention relates to a system (10) for curing and/or inspecting a pipeline lining (30) positioned in a pipeline (20), the pipeline lining (30) comprising an outer plastics material layer and an inner fiber composite layer, the fiber composite layer comprising a plastics material which is to be cured and/or which is at least partially cured. In accordance with the invention, the system (10) comprises at least one high-frequency unit (40) which comprises at least one microwave-generator unit (41) and at least one microwave-transmitting antenna (42) for curing a plastics material which is to be cured, at least the at least one microwave-transmitting antenna (42) being movable in the pipeline (20) by means of a transporting device (60).

A high pressure jetting system includes a recirculating unit connected to an isolated section of a water supply system which remains under system pressure. The recirculating unit includes a filter unit and a pump unit generating a circulating flow of water. A first pig launch and recovery apparatus couples a first hydrant to the recirculating unit and a second pig launch and recovery apparatus couples a second hydrant to the recirculating unit. A camera unit including a camera and drogue chute enters through the first apparatus and travels in a flushing flow direction to the second apparatus. The drogue chute is then removed from the camera. The camera then couples to a jetting unit having a jetting head and hose and re-enters through the second apparatus. The jetting unit emits a plurality of water jets to move in a counter-current flow direction and remove material from the water mains.

Push-cables and associated apparatus for pipe inspection systems are disclosed. In one embodiment a pipe inspection system includes a camera head, a push-cable including an outer covering enclosing a plurality of electrical conductors for transmitting signals and/or power between the camera head and an electronic device operatively coupled to the push-cable, and a spring assembly disposed about the push-cable near the distal end where the spring assembly comprises a spring with a tapered flex section having a varying cross-sectional area and/or a varying cross-sectional shape.

Push-cables and associated apparatus for pipe inspection systems are disclosed. In one embodiment a pipe inspection system includes a camera head, a push-cable including an outer covering enclosing a plurality of electrical conductors for transmitting signals and/or power between the camera head and an electronic device operatively coupled to the push-cable, and a spring assembly disposed about the push-cable near the distal end where the spring assembly comprises a spring with a tapered flex section having a varying cross-sectional area and/or a varying cross-sectional shape.

A non-motorized inspection device for inspecting a fluid pipeline, includes a monitoring device capable of generating at least one representation of the pipeline, an inertial unit capable of determining orientation data relating to the inspection device, and a means for preventing distortion of the at least one representation.

A non-motorized inspection device for inspecting a fluid pipeline, includes a monitoring device capable of generating at least one representation of the pipeline, an inertial unit capable of determining orientation data relating to the inspection device, and a means for preventing distortion of the at least one representation.

A sewer inspection and/or maintenance system includes a base unit and at least one system component which can be arranged on the base unit, wherein a transponder is arranged on the system component, and a reading device is arranged on the base unit, wherein the transponder is adapted to provide data identifying the system component, and the reading device is adapted to receive the data provided by the transponder from the transponder without contact or to read them out from the transponder without contact.

Pipe inspection systems including a push-cable, jetter, and camera assembly are disclosed. A jetter nozzle may be configured to spin and/or propel the camera head within a pipe or other cavity. A cutter line may be attached to the camera head to clean obstructions. A sonde may be coupled to a camera head to generate magnetic field signals for use with a buried utility locator to locate a pipe or other cavity into which the camera head is deployed.