Abstract: Power tools such as cutting saws with rotary powered blades are described. Also described are various accessories for tools used with cylindrical workpieces such as pipes are described. The accessories include a clamp and saw joint assembly, various quick connection assemblies between a saw and a clamping system, a plunge guide assembly, a latch plate assembly, an interlock switch, a blade guard system, and a chip management system or chip deflector. Also described are related methods of use.

Abstract: Power tools such as cutting saws with rotary powered blades are described. Also described are various accessories for tools used with cylindrical workpieces such as pipes are described. The accessories include a clamp and saw joint assembly, various quick connection assemblies between a saw and a clamping system, a plunge guide assembly, a latch plate assembly, an interlock switch, a blade guard system, and a chip management system or chip deflector. Also described are related methods of use.

Abstract: Power tools such as cutting saws with rotary powered blades are described. Also described are various accessories for tools used with cylindrical workpieces such as pipes are described. The accessories include a clamp and saw joint assembly, various quick connection assemblies between a saw and a clamping system, a plunge guide assembly, a latch plate assembly, an interlock switch, a blade guard system, and a chip management system or chip deflector. Also described are related methods of use.

Abstract: Systems for cutting cylindrical workpieces such as pipe are described. The systems include a clamping assembly and can be used in various methods. In one method, the clamping assembly and a cutting tool or saw is used on a rotating workpiece. In another method, the clamping assembly and a cutting tool or saw is used on a stationary workpiece. Also described are frames that can be secured to the clamping assembly.

Abstract: Systems for cutting cylindrical workpieces such as pipe are described. The systems include a clamping assembly and can be used in various methods. In one method, the clamping assembly and a cutting tool or saw is used on a rotating workpiece. In another method, the clamping assembly and a cutting tool or saw is used on a stationary workpiece. Also described are frames that can be secured to the clamping assembly.

Abstract: Power tools such as cutting saws with rotary powered blades are described. Also described are various accessories for tools used with cylindrical workpieces such as pipes are described. The accessories include a clamp and saw joint assembly, various quick connection assemblies between a saw and a clamping system, a plunge guide assembly, a latch plate assembly, an interlock switch, a blade guard system, and a chip management system or chip deflector. Also described are related methods of use.

Abstract: Wheeled transport carts are described which are configured for transporting drain cleaning equipment such as drain cleaning machines and drain cleaning cable. The carts include engagement provisions that enable a drain cleaning machine to be affixed to the cart and preclude unintended separation from the cart during use or transport. The engagement provisions also enable the drain cleaning machine to be quickly and easily separated from the cart. Also described are methods of transporting such equipment using the carts. In addition, systems of the cart(s) with various equipment are described.

Abstract: Power tools such as cutting saws with rotary powered blades are described. Also described are various accessories for tools used with cylindrical workpieces such as pipes are described. The accessories include a clamp and saw joint assembly, various quick connection assemblies between a saw and a clamping system, a plunge guide assembly, a latch plate assembly, an interlock switch, a blade guard system, and a chip management system or chip deflector. Also described are related methods of use.

Abstract: Power tools such as cutting saws with rotary powered blades are described. Also described are various accessories for tools used with cylindrical workpieces such as pipes are described. The accessories include a clamp and saw joint assembly, various quick connection assemblies between a saw and a clamping system, a plunge guide assembly, a latch plate assembly, an interlock switch, a blade guard system, and a chip management system or chip deflector. Also described are related methods of use.

Abstract: Power tools such as cutting saws with rotary powered blades are described. Also described are various accessories for tools used with cylindrical workpieces such as pipes are described. The accessories include a clamp and saw joint assembly, various quick connection assemblies between a saw and a clamping system, a plunge guide assembly, a latch plate assembly, an interlock switch, a blade guard system, and a chip management system or chip deflector. Also described are related methods of use.

Abstract: Wheeled transport carts are described which are configured for transporting drain cleaning equipment such as drain cleaning machines and drain cleaning cable. The carts include engagement provisions that enable a drain cleaning machine to be affixed to the cart and preclude unintended separation from the cart during use or transport. The engagement provisions also enable the drain cleaning machine to be quickly and easily separated from the cart. Also described are methods of transporting such equipment using the carts. In addition, systems of the cart(s) with various equipment are described.

Abstract: Wheeled transport carts are described which are configured for transporting drain cleaning equipment such as drain cleaning machines and drain cleaning cable. The carts include engagement provisions that enable a drain cleaning machine to be affixed to the cart and preclude unintended separation from the cart during use or transport. The engagement provisions also enable the drain cleaning machine to be quickly and easily separated from the cart. Also described are methods of transporting such equipment using the carts. In addition, systems of the cart(s) with various equipment are described.

Abstract: Power tools such as cutting saws with rotary powered blades are described. Also described are various accessories for tools used with cylindrical workpieces such as pipes are described. The accessories include a clamp and saw joint assembly, various quick connection assemblies between a saw and a clamping system, a plunge guide assembly, a latch plate assembly, an interlock switch, a blade guard system, and a chip management system or chip deflector. Also described are related methods of use.

Abstract: Systems for cutting cylindrical workpieces such as pipe are described. The systems include a clamping assembly and can be used in various methods. In one method, the clamping assembly and a cutting tool or saw is used on a rotating workpiece. In another method, the clamping assembly and a cutting tool or saw is used on a stationary workpiece. Also described are frames that can be secured to the clamping assembly.

Abstract: Wheeled transport carts are described which are configured for transporting drain cleaning equipment such as drain cleaning machines and drain cleaning cable. The carts include engagement provisions that enable a drain cleaning machine to be affixed to the cart and preclude unintended separation from the cart during use or transport. The engagement provisions also enable the drain cleaning machine to be quickly and easily separated from the cart. Also described are methods of transporting such equipment using the carts. In addition, systems of the cart(s) with various equipment are described.

Abstract: A time-reversal positioning system includes a storage storing first data representing channel impulse responses derived from probe signals sent from a plurality of positions and second data representing coordinates of the positions. A data processor determines a position of a terminal device based on the stored channel impulse responses and a time-reversed signal determined based on a time-reversed version of a channel impulse response that is estimated based on a channel probing signal sent from the terminal device.

Abstract: A quantum key distribution system includes an optical transmitter that generates a multiplexed QKD data and polarization reference signal, wherein a relative polarization of a QKD data signal component and a polarization reference signal component of the multiplexed QKD data is known. A quantum channel propagates the multiplexed QKD data and polarization reference signal. An optical receiver includes a demultiplexer that demultiplexes the multiplexed QKD data and the polarization reference signal. The optical receiver also includes a detector that detects an intensity of the demultiplexed polarization reference signal. In addition, the optical receiver includes a polarization transformer that transforms a polarization of the demultiplexed QKD data signal in response to the detected intensity so that a polarization axis of the QKD data signal is substantially the same as a polarization axis of the QKD data signal generated by the optical transmitter.