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| Number | Title | Issue Date |
| 4715747 | Air motivated conduit prover apparatus Air motivated apparatus for proving the integrity of a conduit includes a flexible cone of substantially the same diameter as the conduit which it is to prove secured to a flexible mandrel having a plurality of elements of different sizes, each element of... | 12/29/1987 |
| 4674218 | Interchangeable gun cleaning devices A gun bore cleaning device serves rods of different diameters with a handle which accommodates to the different rods. The handle has a central through-bore which communicates with an enlarged threaded bore at each of its inboard and outboard ends. The rod... | 06/23/1987 |
| 4674684 | Support and drive members suitable, for example, for use in shower units of papermaking machines A support and driving member comprises an open framework comprising a helical strip (38) supported by a series of support members (39) extending longitudinally of the helical strip and internally thereof. The member may be incorporated in a shower unit th... | 06/23/1987 |
| 4600444 | Pipe end area cleaning system To thoroughly clean, both the inside and outside of pipe and tubing, and both the threaded end and the coupling end of pipe and tubing, for a distance of 18 to 24 inches from end of pipe, a cleaner assembly includes at least one rotating brush that revolv... | 07/15/1986 |
| 4595136 | Combination tool for gas welders A single tool, especially for use by gas welders, that combines a soapstone marker, a rotary spark igniter and a plurality of torch cleaning wires. The tool is of metal construction, of pencil-like shape, readily manually manipulable, and easily releasabl... | 06/17/1986 |
| 4583585 | System for cleaning tube-type exchangers automatically during operation A device for cleaning the tubes of tube-type heat exchangers and/or preventing the accumulation of deposits therein, the device consisting of a helix of a material which is resistant to corrosion and abrasion, which can be constantly agitated and thus rep... | 04/22/1986 |
| 4580635 | Automatic drill pipe inside wiper A direct acting slug and wipe tool for use in drill pipe in drilling operations effects a cleaning operation by placing a rib inflated bladder in contact with the inside surface of a drill pipe in connection with a free floating pneumatic chamber. The inf... | 04/08/1986 |
| 4558751 | Apparatus for transporting equipment through a conduit Apparatus 10 for propelling equipment through a fluid-filled conduit 12, such as a pipeline or oil well tubular. The propulsion apparatus incorporates first and second elements 14,16 adapted to be moved in a first axial direction through the conduit 12 an... | 12/17/1985 |
| 4518152 | Device for loosening a cable within a conduit A generally cylindrical tubular sleeve member sized for easy clearance within a conduit. The tubular sleeve member has a shaped mouth on at least one end for freeing a cable adhered to the inside of the conduit when the sleeve member is drawn longitudinal... | 05/21/1985 |
| 4488515 | Hydraulic column choke and reamer An hydraulic column choke valve and reamer adapted to hot water heating boilers and the like, permitting maintenance on low water fuel cut-off controls and similar columns without draining, characterized by a universal valve body which interchangeably mou... | 12/18/1984 |
| 4476603 | Drainage seal for sewage system To facilitate cleanout of a sewer a guide member is located with a manhole to guide a cleanout tool into the sewer. The sewer is downwardly inclined adjacent the manhole so that the inlet enters at a location below the outlet and a predetermined level of ... | 10/16/1984 |
| 4468829 | Cleaning and deburring tool for spent cartridge cases A tool for cleaning and deburring spent cartridge cases by means of a cleaner at a first end of the tool used to clean the primer pocket of carbon and other residue remaining in the pocket is disclosed herein. The other end of the tool is adapted to debur... | 09/04/1984 |
| 4461126 | Cleaning process for corrugated aluminum electrical transmission line enclosure A process for preparing the interior of a corrugated pipe or sheath comprises the steps of placing a predetermined amount of a tumbling abrasive material into the sheath, and then rotating the sheath.... | 07/24/1984 |
| 4433448 | Power pipe thread cleaner A power actuated cleaner for cleaning the threads on the ends of tubular members including a housing having a rotatable disc in the housing with power means connected to the disc for rotating the disc. A plurality of cleaning brushes are provided, each of... | 02/28/1984 |
| 4403363 | Pipe thread cleaner A power operated cleaner for large pipe threads is disclosed that includes a lightweight portable unit connected by flexible lines to power sources and to storage tanks. Both mechanical and chemical cleaning means are provided together with means to recov... | 09/13/1983 |
| 4393805 | Pipeline pig for lining pipe lines A pipeline pig for lining pipe lines with an internal coating of a solidifying plastic composition with which the pipe line is spread by means of the pig, the pipeline pig having at least one spreader body and at least one forward and one rear guide body.... | 07/19/1983 |
| 4372003 | Industrial pipe thread cleaner A powered pipe thread cleaner for oil pipe and oil casings has a housing which defines a sump for collecting dirty solvent during the thread cleaning process. The thread cleaner is of the driven brush type and employs specially configured brushes and brus... | 02/08/1983 |
| 4326893 | Implement and method for cleaning tubular drains An implement for cleaning tubular drains and a method for cleaning therewith, said implement having a carriage assembly with radially extending cutting means at a forward end and a correspondingly radially extending plunger means in spaced relationship th... | 04/27/1982 |
| 4321096 | Apparatus and method for cleaning an explosion sensing port A bar is intermittently movable through an explosion sensing port in the wall of a chamber for cleaning the port without blocking it. The chamber is coupled to a mechanism for introducing a suppression agent into the chamber for suppressing or smothering ... | 03/23/1982 |
| 4319851 | Device for cleaning rain gutters A device for flushing, sweeping and scooping debris, snow and ice from roof gutters avoiding the need for climbing on ladders and roofs which in its preferred embodiment includes a means for seeing into said gutters from the ground.... | 03/16/1982 |
| 4263692 | Shipboard communications phone-jack cleaner A cleaning implement including a cylindrical member containing a centrally located cylindrical cavity having an abrasive surface. A handle element is attached to the cylinder. The cavital surface is used to clean the connecting post located within the hea... | 04/28/1981 |
| 4246728 | Conduit end treating tool A tool for cleaning, deburring, burnishing, or otherwise treating an end of a tubular conduit comprises a rotatable body coupled to a carrier provided with an abrading substance. In one form the carrier may be accommodated within the conduit, whereas in a... | 01/27/1981 |
| 4244296 | Self-propelled vehicle Self-propelled vehicle with articulated arms able to move in a tube or in a laminar space defined between two approximately parallel surfaces. It comprises a body equipped with at least one driving and guide wheel which bears on a surface on which the veh... | 01/13/1981 |
| 4221264 | Tubular interior wiper A wiper for wiping liquids from the interior walls of various tubulars, such as drill pipe, tubing, casing or internal upset pipe is disclosed which is particularly useful in drilling and workover as the tubular member is withdrawn from a well bore. Featu... | 09/09/1980 |
| 4216738 | Method of renewing water pipe, including coating thereof, and apparatus therefor A method of cleaning and renewing sections of pipe is disclosed wherein the flow of fluid through the pipe is shut off and a scrubbing element is inserted into one end of the pipe. The scrubbing element is advanced through the pipe while at the same time ... | 08/12/1980 |
| 4202377 | Pipe cleaning and plugging apparatus An apparatus for plugging a pipeline through a side opening and arranged such that the sealing portion may be removed and a rotary brush substituted to effect initial cleaning of pipeline should that be desired. The apparatus includes a bell-type housing ... | 05/13/1980 |
| 4190920 | Garbage chute clearing device A device for clearing plugged garbage chutes is specially constructed to make it adaptable for use in multi-story buildings, such as apartment houses, having vertical chutes extending through several stories down to a receptacle in the basement of the bui... | 03/04/1980 |
| 4177734 | Drive unit for internal pipe line equipment Drive unit for internal pipeline equipment, wherein the drive motor which drives the drive unit is disposed parallel to the pipe axis instead of transverse to the pipe axis, thereby to occupy a reduced space transverse to the length of the pipe and enabli... | 12/11/1979 |
| 4133070 | Scarifying tool for pipe ends A tool for scarifying at least end areas of generally cylindrical members has a wire brush mounted thereto against axial and rotational movement by securing a brush mounting member to an end portion of the brush spine and trapping the mounting member betw... | 01/09/1979 |
| 4121486 | Internal thread cleaner and restorer Thread restoring tool which is simple, accurate and inexpensive for cleaning and restoring defective internal threads of pipe connecting members. The tool comprises a pair of levers pivotally mounted to a cross link at approximately the midpoint of the le... | 10/24/1978 |
| 4113236 | Pulling tool apparatus A pulling tool apparatus for assisting equipment to descend down a wellbore, such as logging tools being lowered into a deviated wellbore. The pulling tool includes a pump located in the tool housing for pulling drilling mud into the lower end of the pull... | 09/12/1978 |
| 4112850 | Conveyor apparatus for the interior of pipelines Conveyor apparatus for checking the interior of a pipeline. The apparatus includes two chassis sections, one of which is adapted to drive the apparatus, and the other of which is driven. A pair of endless belts connects both of the chassis sections and ar... | 09/12/1978 |
| 4054045 | Two-piece mandrel assembly for deforming A hole expansion mandrel assembly for expanding holes through work pieces including a drive pin with a leading pulling section and a trailing driving shoulder; and a collet removably carried on the drive pin and abutting the driving shoulder where the col... | 10/18/1977 |
| 4051839 | Lime breakup means A hot water heater having a heating tank and a superjacent basin for receiving cold water to be delivered to the tank. A duct is provided leading from the basin into the tank for transferring water from the basin to the tank. A heater is provided for heat... | 10/04/1977 |
| 4050384 | Tube inspection and servicing apparatus An apparatus for insertion into a relatively long tube or conduit in order to inspect or perform operations on the interior thereof. The apparatus includes a device for performing an operation on the tube as well as a plurality of traction units secured a... | 09/27/1977 |
| 4034807 | Inside pipe wiper A tool for automatically scraping off mud and oil from the inside wall of pipe being lifted during an oil well drilling operation; the tool including an elongated float that fits loosely inside the pipe and which is of a weight so that it floats on the su... | 07/12/1977 |
| 4006508 | Manual radiator rodder A radiator core cleaning device for manually removing rust, corrosion, mineral deposits and other compounds or elements from the cores of heat exchangers such as motor cooling radiators used in automobiles, trucks, buses, other like vehicles and other var... | 02/08/1977 |
