Abstract: A grinding shoe is designed to be a passive grinder that is advanced within the bore of a pipe being rotated in a typical pipe operation. Apparatus currently used to deliver reamer rocks on the end of a rotating lance can be modified to achieve considerable cost savings. Specifically, the apparatus utilizes a lance for advancing the shoe within the pipe without rotation. The shoe is affixed near the end of the lance in a selected attitude that determines the degree of grinding to be accomplished. A pair of shoe walls extending substantially paraxially with the rotating tube form a dual reaming head which engages the pipe interior across a cord over the bottom of the pipe.

Abstract: The invention outlined in the disclosure is an adjustable wire brush tool for cleaning either the inside or the outside end of a copper pipe or fitting in preparation for soldering the parts together. The tool includes a hollow cylindrical section with a first wire brush on the interior surface of the section. Attached at one end of the cylindrical section is a slightly smaller cylindrical section sized to hold a second cylindrical twisted steel brush having a hexagonal shaft that extends from the smaller section, opposite the larger cylindrical section. The twisted steel brush and attached shaft can be moved to extend the twisted brush beyond the open end of the larger cylindrical section, for insertion into a fitting to clean the fitting interior surface by attaching a power drill to the shaft and rotating the twisted steel brush attached thereto. To clean the outside of a pipe, the twist brush is retracted into the smaller section and secured to that section with an engaging means.

Abstract: A blockage clearing apparatus to clear blockages in both drain valves and in pipes. A cylindrical housing holds a piston connected to a cylindrical rod. The piston moves within the cylindrical housing in response to pressure placed on the piston either manually by an operator or by hydraulic or pneumatic power. As the piston moves in the cylindrical housing, the rod connected to the piston moves back and forth in response to the motion of the piston. The blockage clearing apparatus is mounted to a drain valve or to an opening in a pipe. When operated by pneumatic power, valves, manual or solenoid controlled, will control the flow of air in and out of ports in the cylindrical housing, creating a pressure differential within the housing to actuate the motion of the piston, hence, of the rod. The rod will extend from the housing through an open drain valve and into the pipe that is in fluid communication with the drain valve.

Abstract: A downhole tool for cleaning internal surfaces of subsea drilling rig equipment, including drilling risers, blowout preventor assemblies and wellhead assemblies, as well as for retrieving wear bushings, comprising an elongated support body, at least a pair of scraper blades and wash ports. A unique method of cleaning internal surfaces of subsea drilling rig equipment and retrieving a wear bushing in a single operation.

Abstract: A down-hole tool for use in an oil or gas well is provided with detachable components that are held to a body or tool housing by longitudinal mechanical fasteners disposed in a generally radial orientation. The mechanical fasteners allow for the components to be quickly removed and refurbished or replaced, while also permitting radial movement or floating of the components during operation of the tool. A spring may be incorporated to bias the components in a radial outward direction during operation.

Abstract: A pipeline cleaning arrangement that includes a cleaning pig with guide units at each end. A tow cable, via a cone, pulls the pig assembly in a forward direction. The tow cable then pulls the cone in a rearward direction. The pig is configured with two cleaning portions that separate in the forward direction to avoid debris collection and abut in the rearwards direction to collect pipeline debris and carry this to the entry point for removal via a suction tube.

Abstract: A new method and apparatus have been developed which inserts and withdraws tubing from pipes without bending or kinking the tubing. Beneficially, the new method and apparatus may be employed to insert and withdraw tubing to depths greater than ever possible before. The method involves using skate apparatuses to reduce coiling and friction of the tube. Advantageously, the apparatus is portable, easily handled, and adaptable to handle tubing of differing diameters.

Abstract: A Milling device for pipe cleaning and sanitation technology, is disclosed having an air driven milling motor mounted at a front end to a clamping body, a control rod for external manual control of the milling motor in its moveable axes. The milling motor and be positioned in an indefinitely variable in a radial manner.

Abstract: A method and apparatus for desorbing processing liquid from a processing liquid delivery line is provided. Non-thermal energy, such as ultrasonic energy or electromagnetic energy, is applied to a processing liquid delivery line. The non-thermal energy may be applied directly to the processing liquid delivery line, or may be applied indirectly via a conducting medium which distributes the energy along the length of the processing liquid delivery line. When non-thermal energy in the form of electromagnetic energy is employed, the frequency of the electromagnetic energy is adjusted to match the vibrational frequency of the absorbed molecules of processing liquid.

Abstract: A downhole tool for cleaning internal surfaces of subsea drilling rig equipment, including drilling risers, blowout preventor assemblies and wellhead assemblies, as well as for retrieving wear bushings, comprising an elongated support body, at least a pair of scraper blades and wash ports. A unique method of cleaning internal surfaces of subsea drilling rig equipment and retrieving a wear bushing in a single operation.

Abstract: A developer nozzle used to apply developer and other chemicals to a wafer in the processing of semiconductors is kept free of hardened developer or other chemicals by placing a comb-like device in a position that will let the comb be inserted into the spray holes of the nozzle when the nozzle is not in use. The teeth of the comb are tapered for easy insertion by the robot or other programmed device that controls motion of the nozzle. Although hardened developer is the principal concern in such processing, an appropriate comb can be used to maintain the cleanliness of other nozzles used in semiconductor processing.

Abstract: A duct cleaning apparatus for cleaning an inside surface of a duct including an elongated flexible element extending inside the duct having a first end supported in the duct spaced from an inside surface, a second opposed free end and having a length sufficient to engage the inside surface of the duct, preferably greater than the diameter of the duct. Fluid flow through the duct, particularly turbulent flow, causes the elongated flexible element to oscillate or flap, striking the inside surface and removing foreign material from a predetermined portion of the inside surface of the duct. The apparatus of this invention may be used to create a fire break, for example, by removing flammable particles or dust from an area of the duct, preventing a flame from propagating along the duct through the flammable material.

Abstract: An apparatus for extracting debris from a machined or threaded cavity. The apparatus may include an extraction member formed at least in part as a coil region and a control region, the coiled region being controlled by the control region while in a cavity. The control region may have a releasable handle attached to it and that handle may contain a cavity for storing one or more extraction members of different size. The extraction member is preferably formed of a continuous wire and has a specially formed extraction tip.

Abstract: An apparatus for removing hair from a drain consists of an elongate, flexible strip with an attached handle. A number of barbed portions are dispersed along the length of the flexible strip, with the barbed portions alternating along the two sides of the strip. The barbed portions are oriented at an acute angle to the longitudinal axis of the strip, with the vertex of the angle pointing away from the handle. The barbed portions serve to grip hair in the drain, the hair being removed when the device is removed from the drain.

Abstract: A tool for distributing electrically conductive particles, and optionally abrasive particles, on the surface of a male, electrical jack connector and a tool for distributing electrically conductive particles, and optionally abrasive particles, on the surface of a female, electrical jack connector which tools can be interfitted so that each acts as a removable cover for the other. The tools can simultaneously clean while distributing particles. A method for using each of the tools.

Abstract: A cleanout fitting for air conditioner evaporator drains facilitates the mechanical cleanout and hydraulic flushing of the entire drain line from an air conditioner evaporator unit, or air handler. The present fitting essentially comprises an asymmetric T configuration, with a shutoff valve in one side of the crossmember of the T and a removable cap in the opposite end of the crossmember. The fitting is normally configured with the cap in place to block drainage therefrom, and with the valve open to permit flow from the evaporator pan through that crossmember side and out the stem of the T to an appropriate drain system. When the line becomes blocked and causes water in the evaporator pan to back up, the plug is removed, allowing a mechanical cleanout tool (snake, etc.) to be passed straight through the crossmember of the T and its open valve, to the evaporator pan.

Abstract: A rehabilitation system has been developed for cleaning, testing and slip lining pipe particularly sewer lines while in service. The system includes the use of equipment adapted for use on mobile vehicles to increase efficiency and mobility of the system. The cleaning system utilizes a specialized cleaning bucket that can be pulled from excavations and existing manholes. The testing and lining systems also utilize specialized test mandrels and pulling mandrels for the pipe liner that can be used with equipment operating, in part, from existing manholes.

Abstract: A method and apparatus for cleaning the internal surface of pipes mainly from solid sediments, according to which a cleaning element is inserted into the pipe cavity and rotated at a high speed while fluid is simultaneously supplied to the pipe cavity. The cleaning element comprises a plurality of roller heads with annular grooves coupled to a housing and the roller heads are shifted relative to each other in the axial direction. During cleaning, the roller heads and the housing rotate around their respective longitudinal axes in a manner such that the rotation of the roller heads is opposite in direction relative to the rotation of the housing. While rotating, the cleaning element creates spiral grooves in the sediment and cuts off the sediment along the spiral path.