Abstract: A downhole tool having a cylindrical body, a sleeve having a contact portion disposed on a distal end, and a cutter having a radiused portion on a top surface operatively engageable with the contact portion. Also, a method of cutting drill pipe, the method including disposing a cutting tool in a wellbore around the drill pip and actuating a radiused cutter of the cutting tool, wherein the actuating includes radially extending the cutter into contact with the drill pipe. The method also includes applying a substantially constant force between the cutter and the drill pipe and rotating the cutting tool. Additionally, a cutter for a drill pipe cutting tool, the cutter including a work surface located at a first end of the cutter, an attachment point located at a second end of the cutter, and a radiused surface located between the work surface and the attachment point.

Abstract: A power tool includes a motor, a pipe holder configured to support a pipe, and a cutting mechanism coupled to the pipe holder. The cutting mechanism is movable relative to the pipe holder. The power tool also includes a drive mechanism coupled to the cutting mechanism and the motor to move the cutting mechanism from a starting position toward the pipe holder to cut the pipe. The drive mechanism includes a first member operable to disengage a second member to allow movement of the cutting mechanism to the starting position.

Abstract: A tapping tee assembly and method is provided for fluidly connecting to a conduit. The tapping tee assembly includes a body having a conduit recess for receiving the conduit and further defining a passage having one end adjacent the conduit recess. A cutter is received in the passage and engages a threaded region of the passage for selective advancement and retraction within the passage upon rotation relative the body. The cutter comprises a first component with first and second ends and having a cutting edge at the first end for cutting through a side wall of the conduit to establish fluid communication between the main passage and the conduit. A second component is secured to the first component at the second end either by mechanically securing or molding the second component to the first component.

Abstract: A pipe cutter according to the invention has an inner head part which, in the working position, rotates about a pipe which is clamped in the inner head part and is to be processed. Integrated in the inner head part are a spring-mounted cutting wheel head (8) having a cutting wheel (7) for cutting the pipe and a plurality of support rollers (9) in spring-mounted receptacles (10). The arrangement and formation of cutting wheel (7) and support rollers (9) is such that the clamped pipe is at right angles to the cutting wheel (7), and a right-angled cut is thus achieved. Moreover, a defined feed cutting force can be set by the spring mounting of cutting wheel head (8) and support roller receptacles. During cutting, the pressure on the pipe decreases with increasing cutting depth, and the pipe can thus be cut cleanly and without burrs.

Abstract: Various embodiments of a pipe cleaning tool are disclosed. In one embodiment, the pipe cleaning tool comprises a body and a plurality of pipe cleaners. The pipe cleaners are adapted to clean at least two different sizes of pipes. In another embodiment, a pipe cutter device is disclosed.

Abstract: A tubing preparation machine is an electrically powered mechanical device housed in one convenient housing assembly. A cutoff assembly is provided that virtually eliminates the need for the reaming and deburring of the cut end of tubing and a cleaner assembly is provided that has a tubing alignment guide to accept tubing to the correct depth for cleaning while stabilizing the tubing during the cleaning process. A quick release chuck allows the operator to easily attach the correct size fitting cleaner brush. The tubing preparation machine is portable, lightweight and easily hand carried by use of a handle provided on the housing assembly cover. The tubing preparation machine provides for unparalleled, safe, convenient and efficient preparation of tubing and related fittings.

Abstract: A flexible electric power extension cable includes at least two conductors for electrical pipe processing equipment, a plug and a female cable connector part. The plug contains the at least two-conductors and is electrically connected to the front end of the electric power extension cable for receiving line power while geometrically fitting into a line-power electric outlet box. The female cable connector part contains the at least two conductors and is electrically connected to the rear end of the electric power extension cable. There is a mismatch between the geometry of the female cable connector part and that of the cable plug to preclude connection between the female cable connector part and the plug.

Abstract: A clamping tool for use with a power tool includes a housing mounted on a power tool. The housing includes at least one engaging portion. The locking pliers includes a retaining section with a proximal end and a distal end. The proximal end is mounted on the at least one engaging portion for retain the locking pliers in a selectively, releasably, rotational relationship relative to the housing. An engaging section of the locking pliers is mounted relative to the retaining section and is selectively locked relative to the distal end of the retaining section for positioning an article therebetween. In two embodiments, after an article is locked in the locking pliers, the locking pliers can be rotated either away from or towards the housing to permit the power tool to come into engagement with an article.

Abstract: A tube cutter apparatus comprises a body that is generally cylindrical in shape and has a bore through which a tube to be cut is inserted. The tube cutter apparatus may further comprise a coupling restraining the tube and a bearing tube defining at least a portion of the bore. A revolving unit may be provided comprising a retaining flange. The revolving unit may further comprise a rotary tool holder including a cutting tool configured to cut the tube. An end flange, the retaining flange and the rotary tool holder may be coupled together to revolve as a unit. The tube cutting apparatus of the present invention may further include devices for setting the depth of the cut of the cutting tool and for setting the point at which the cutting operation will stop.

Abstract: Various embodiments of a pipe cleaning tool are disclosed. In one embodiment, the pipe cleaning tool comprises a body and a plurality of pipe cleaners. The pipe cleaners are adapted to clean at least two different sizes of pipes. In another embodiment, a pipe cutter device is disclosed.

Abstract: A compact dispensing tube opener for accessing contents of a dispensing tube having a dispensing tip and an inner seal. The opener includes a housing with first and second passageways therein meeting at an angle at an intersection. A blade carriage is movable in the second passageway and across the intersection at one end thereof, a manually accessible portion at an opposite end thereof extending from the housing. A cooperative guide structure at the housing and the blade carriage maintains carriage slidability within the housing during use without binding. Return springs are maintained in the housing for returning the carriage after use. A dispenser tube tip locator is slidably maintained at the housing adjacent to an opening to the first passageway and has plurality of angled passages therethrough each with a different diameter. A lance is mounted at the housing for puncturing the seal, and is pivotable into and out of a channel defined crosswise in the housing.

Abstract: A portable rechargeable apparatus for cutting a pipe with a collar having a throughbore for receiving pipe therein with a blade positioned within the throughbore for cutting the pipe. A gear teeth exteriorly positioned on the housing whereby a drive mechanism having an electric motor driving a gear and spaced apart arms for receiving the collar can rotatively drive the collar for cutting the pipe.

Abstract: A electrical power tool with a circular saw blade attached to a drive shaft of an electric motor. The power tool includes a pipe engaging bracket. The pipe-engaging bracket includes a “L” shaped bracket arm having a first arm member and a second arm member. The first arm member is attached to a side of the housing. The second arm member is at right angles to the first arm member. The second arm member includes a pair of spaced apart guide pin holes for receiving a center portion of a pair of guide pins therethrough. An upper portion of the guide pins is received through a pair of coil springs. The coil springs are held on the upper portion of the guide pins using spring stops. A lower portion of the guide pins includes ends attached to a guide arm. The guide arm is parallel to the second arm member. The guide arm includes a pair of spaced apart guide fingers with pipe grooves therein. The guide fingers are disposed on opposite sides of the saw blade.

Abstract: Tapping fitting (1) suitable for application to a plastic pipe (P), comprising: a housing (5) including a hollow main section (6), the housing being attachable to a pipe (P); a cutter assembly (13) mountable within the hollow main section (6) and axially moveable therein into a cutting position wherein the cutting blade (14) engages the surface of a pipe (P) to which the fitting is attached; and a direct seal (23) between the housing (5) and the cutter assembly (13), wherein, in use, the seal (23) is maintained between the housing (5) and the cutter assembly (13) regardless of the axial position of the cutter assembly (13) within the housing (5).

Abstract: A tapping valve having a housing which can be electrically welded to a pipe and which includes a connection piece (2) with a drill (24) therein for drilling the pipe. The connection piece has an inner surface (34). The drill or a bushing (70) in which the drill can be moved axially by a threaded connection (74, 76; 80, 82) is provided with an external thread which engages the inner surface of the connection piece. Inner surface (34) is constructed such that it is initially cylindrical adjacent the external thread (32) and an inner thread can be formed in the inner surface (34) using the external thread (32) by rotating the drill (24) or the thread (70) in an axially forward direction (30). The tapping valve is easy to manufacture and yet offers a high degree of functional reliability.

Abstract: A drainage valve tap assembly for connection of a branch line to a main line while simultaneously forming a freeze proof drain comprising a hollow body having a first end and a second end, a cutting tube attached to the first end of the body; a handle having a hollow interior, the handle attached to the second end of the body for rotating the body; and a resilient drain plug extending at least partially in the body for blocking off the flow of water therethrough under a water pressure and for allowing the draining of water therethrough and out of the drainage valve when the water pressure is cut-off.

Abstract: The present invention provides a pipe cutter apparatus that includes a housing having a base and lid. The lid is moveable between a storage position and an operative position. A motor is retained within the housing and has a shaft operatively connected thereto and rotated thereby. A cutting wheel extends radially from the shaft and is rotated with the shaft. A pipe conveyor is also retained within the housing, adjacent the cutting wheel. The pipe conveyor may be operated to urge a pipe placed therein into engagement with the cutting wheel. The pipe conveyor is preferably adjustable to receive pipes of various diameters. Notably, when the lid is in the operative position, a work area is provided for cutting a pipe or similar work piece. When the lid is in the storage position, a carrying case is provided such that the pipe cutter apparatus is readily portable. A cleaning brush also extends from the shaft that is rotated by the motor.

Abstract: A portable, hand held exhaust pipe cutter having an air motor to drive a cutting wheel arranged parallel to a drive shaft of the air motor by an angle head gearing device. The cutter makes straight cross-sectional cuts through cylinders by using a feed lever pivotally attached to the air motor that engages the cylinders to be cut and guides them into engagement with the cutting wheel. The feed lever on an opposing end includes a handle that extends along the air motor so that a user can grip both the control lever of the air motor and the handle of the feed lever simultaneously with a single hand.

Abstract: A tubing cutter having a body rotatably supporting a cutter element and a pair of rollers adjacent an opening. The tubing is placed in the opening with the rollers and cutter element in simultaneous contact. A knob and threaded shaft advance movement of a cutter holder as the body is rotated or swung about the axis tubing to cause cutting of the tubing. Stop elements are mounted relative to the cutter element to prevent cutting prior to complete severing of the tubing to permit manual breaking of the tubing to achieve a smoother end.

Abstract: A pipe-drilling fitting for a medium-conveying pipe, comprising a housing which has a drilling stub, which can be fitted at an angle to the pipe axis, for drilling into the pipe wall, and a branch stub which is arranged at an angle to the drilling stub, a rotationally actuable cutting bush being arranged in the drilling stub, the cutting bush and the drilling stub having mutually complementary screw threads, and at least one sealing means for sealing the medium-conveying pipe with respect to the outside being provided between the drilling stub and the cutting bush, in which fitting the sealing means is arranged in the cutting bush on an external diameter which is significantly smaller than the internal diameter of the complementary screw threads.

Abstract: A self-tapping tee for heavy walled plastic pipe such as polyvinyl chloride (PVC) or thick walled polyethylene tubing. The self-tapping tee includes a saddle for gripping a tubular line to be tapped, a coupling tap with a stem for poking a hole in a sidewall of the line, with the sidewall of the line around the hole stretched about the stem, forming a seal, and a removable mandrel for supporting the stem while the hole is being made.

Abstract: A rod cutter having two force-applying members pivotally attached together. A cutter is pivotally mounted on each of the members in a mechanical advantage arrangement. The cutters both have extending ends which are pivotally connected together and have rod cutting edges thereon, all for force-advantage cutting.

Abstract: A method for inserting a valve in a line, including polyethylene, PVC, plastic, and copper line, pipe, and tubing, without, for example, having to first shut down a line containing fluid under pressure, includes the step of providing first and second ball valve subassemblies that are adapted to be assembled over the line to form a ball valve assembly having a ball component within a housing component. The ball defines a bore, includes cutting edges, and is adapted to be rotated ninety degrees within the housing about an axis of ball rotation perpendicular to the central axis of the bore. The method proceeds by assembling the first and second ball valve subassemblies over the line, and rotating the ball relative to the line so that the cutting edges on the ball cut out a section of the line. In one embodiment, the ball is rotated ninety degrees within the housing about the axis of ball rotation so that the cutting edges slice through the line.

Abstract: The present invention comprises an improved method and apparatus, associated with a self-piercing valve assembly for mounting the self-piercing valve on a pipe and for constraining movement of the valve on the pipe. In accordance with a preferred embodiment of the present invention, a self-piercing valve assembly comprises a clamping assembly and a crimping member associated with the clamping assembly, which crimping member "automatically" crimps a pipe and forms a recess therein when the self-piercing valve clamping assembly is tightened about the pipe, and simultaneously effects a crimping member/recess interface (much like a key-and-keyway interface) which inhibits relative angular rotation between the pipe and valve. The crimping member is, preferably, a rigid, projection or tab.

Abstract: A pipe tapping valve which can be connected, for example by welding, with a pipe which is to be tapped, and which includes a support stub (4) in which a drill bit (26) is disposed for axial movement, and with which a branch nipple (12) is connected. The pipe tapping valve is configured so that the drilling of the tube can be safely performed with little difficulty, while a seal satisfying the requirements of the particular application is provided both during the drilling and after the drilling has ended. The support stub (4) has a substantially smooth cylindrical inside surface; the drill bit (26) contains at its upper free end an expansion (30) or a sealing ring (54) in contact with the inner surface (34) of the support stub (4), and the drill bit (26) is axially movable by means of a drilling tool (36) attachable to the support stub (4).

Abstract: A motorized tool allows one or more operations to be performed on a workpiece, such as cutting and/or conditioning a surface of a pipe or a pipe fitting or receptacle. The motorized tool includes a cutter and/or one or more rotatably driven accessories, such as workpiece surface conditioners or brushes. The motorized tool further includes a drive mechanism used to rotate the workpiece against the cutter and to rotate the rotatably driven accessories. In one example, the drive mechanism rotates drive rollers that contact a workpiece and rotates the workpiece against a cutting element or edge of the cutter. In another example, the motorized tool includes an internal workpiece surface conditioner and an external workpiece surface conditioner that are also rotated by the drive mechanism to clean, debur or otherwise condition internal and external workpiece surfaces. The motorized tool can be hand-held or hand-operated and includes opposing pivotable members having handle portions.

Abstract: A slotter capable of providing a cut of precise depth into a tube is comprised of a main base and an adjustable roller base capable of extension and retraction from the main base, controllable by an adjustable over-center actuator linkage. A pair of roller sets securely hold the tube within the device. A cutting blade, straddled by a pair of limiting rollers, cuts into the tube. Cutting blade rotation is provided by a pneumatically powered rotational motor.

Abstract: An inflatable gas pipeline stopper is used for stopping gas flow through pipelines to permit repairs to be made to gas pipelines. For plastic gas pipelines, a tapping tee is attached to the plastic gas pipeline and a gas tight apparatus having a valve is attached to the tee. Thereafter, the plastic gas pipeline can be cut with a pipe cutter that is engaged with a hexagonal head and magnetic attachment to be operated from the exterior of the air tight apparatus. The pipe cutter can be removed from the air tight apparatus and the valve of the air tight apparatus closed to prevent gas from escaping from the pipeline. The inflatable gas pipeline stopper with dual air bags can then be inserted into the plastic gas main, through the air tight apparatus and the tee, to stop the flow of gas through the pipeline. After repairs on the pipeline are complete, the inflatable gas pipeline stopper can be removed, the tee can be stopped, and the air tight apparatus can be removed.

Abstract: A tapping fitting for application to a pipe in order to tap a fluid conducted therethrough to an ancillary device includes a housing having a rotatable blade assembly threadedly received within the housing main section and including a cylindrical cutting blade at its inner end such that rotation of the blade assembly cuts a cylindrical slug from the pipe when attached thereto. The device further includes a hollow stem having an inner end secured to the rotatable blade assembly and an outer end for receiving a key to rotate the hollow stem and the blade assembly from an initial retracted position to a projected position and then to a final retracted position. A seal between the outer surface of the hollow stem and the housing main section seals the interior of the pipe from the external side of the housing both during and after the cutting of the cylindrical slug from the pipe.

Abstract: A tapping fitting for a pipe, preferably a plastic pipe, includes a rotatable blade assembly threaded within a sleeve non-rotatably received within a housing such that rotation of the blade assembly causes it to cut a cylindrical slug from the pipe to which the housing is attached. The opposite faces of the sleeve are exposed to the fluid pressure within the pipe thereby producing a balance of forces substantially eliminating transverse creep. In addition, the attaching section of the fitting is formed with a bore which is engageable by a sealing ring received around the rotatable blade assembly and which is of sufficient length to accommodate any axial creep, thereby enabling the blade assembly also to serve as a valve.

Abstract: A valve adapted for insertion in a pressurized fluid flow line for blocking and sealing the flow of fluid through the line without disconnecting the line and to maintain the pressure in the upstream end of the line. The valve includes two body portions which may be clamped on the fluid flow line to form a valve body in which is adjustably mounted an elongated tubular outer shaft, and an elongated cylindrical inner shaft that is rotatably mounted through the tubular outer shaft and carries an annular hole cutter and a tubular seal. The inner shaft is rotatable for driving the annular hole cutter through the line and the outer shaft is rotatable for advancing the inner shaft and annular hole cutter and for positioning the tubular seal in the hole cut through the line to block and seal flow through the downstream portion of the line.

Abstract: A valve adapted for insertion in a pressurized fluid flow line for blocking and sealing the flow of fluid through the line without disconnecting the line and to maintain the pressure in the upstream end of the line. The valve includes two body portions which may be clamped on the fluid flow line to form a valve body in which is adjustably mounted a shaft carrying an annular hole cutter and a tubular seal. The shaft is rotatable for driving the annular hole cutter through the line and to position the tubular seal in the hole cut through the line to block and seal flow through the downstream portion of the line.

Abstract: A hand tool or grooving or cutting pipes has an aperture for receiving a portion of pipe, and adjustable support means. A cutting or grooving wheel is displaceable along a predetermined path to cause it to move radially relative to the pipe, as the tool is manually rotated round the pipe.

Abstract: An apparatus and method is disclosed for an improved hose trimming apparatus for trimming a hose, the hose having an internal bore encompassed by a sidewall. The apparatus comprises a support member and securing means disposed on the support member for securing the support member to the hose. A motor assembly comprising a revolving cutting head is mounted on an axis of a motor for rotating the revolving cutting head about the axis. The motor assembly is rotatably mounted relative to the support member. A handle rotates the motor assembly about the support member enabling the revolving cutting head to sever the sidewall of the hose as the revolving cutting head is rotated about the support member.

Abstract: An apparatus and method is disclosed for an improved hose trimming apparatus for trimming a hose, the hose having an internal bore encompassed by a sidewall. The apparatus comprises a support member and securing means disposed on the support member for securing the support member to the hose. A cutting element is rotatably mounted relative to the support member. A handle rotates the cutting element relative to the support member enabling the cutting element to sever the sidewall of the hose as the cutting element is rotated relative to the support member.

Abstract: An isothermic protective boot designed particularly for patients with arterial disease. The boot has a complete inner lining and outer cover of a soft, non-allergenic material, a double layer of a soft, flexible, compressible isothermic protective material between the outer cover and inner lining, and a body of flexible, compressible weight-bearing material at the back of the boot in a position to extend along the heel cord and lower aspect of the calf of the patient's leg.