Did You Know...
...Daniel Webster invented a "bull plow" to pull out tree stumps. It didn't catch on because it was huge and required four oxen to pull it!
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| Number | Title | Issue Date |
| 7418785 | Compact dispensing tube opener 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... | 09/02/2008 |
| 7406769 | Pipe cutting apparatus 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... | 08/05/2008 |
| 7310965 | Compressor head, internal discriminator, external discriminator, manifold design for refrigeration recovery apparatus The compressor head, internal and/or external discriminator, and manifold design in general utilize ball valves on the suction and discharge of a cylinder head in the recovery of refrigerant liquid and/or vapor. The device facilitates the flashing of liquid refriger... | 12/25/2007 |
| 7302753 | Electrical gripping testing and installation device A method and apparatus for the safe and easy installation of wall-mounted electrical outlets and switches utilizing a multi-functional tool. Two different but similar tools are provided, each in the form of an insulated handle that may be detachably engaged with eit... | 12/04/2007 |
| 7159412 | Compressor head, internal discriminator, external discriminator, manifold design for refrigeration recovery apparatus The compressor head, internal and/or external discriminator, and manifold design in general utilize ball valves on the suction and discharge of a cylinder head in the recovery of refrigerant liquid and/or vapor. The device facilitates the flashing of liquid refriger... | 01/09/2007 |
| 7073346 | Compressor head, internal discriminator, external discriminator, manifold design for refrigerant recovery apparatus and vacuum sensor The compressor head, internal and/or external discriminator, and manifold design in general utilize ball valves on the suction and discharge of a cylinder head in the recovery of refrigerant liquid and/or vapor. The device facilitates the flashing of liquid refriger... | 07/11/2006 |
| 7028360 | Multi-functional hand tool for punching holes and inserting fittings in irrigation pipes A multi-functional hand tool for punching holes into plastic piping and for inserting fittings, primarily intended for use in making holes in irrigation pipes of all sizes, with holes of 2–5 mm in diameter, and for inserting drips and sprinklers into the pipes. Th... | 04/18/2006 |
| 6941660 | Power hand tool with saw blade and pipe engaging bracket for cutting a pipe 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 ... | 09/13/2005 |
| 6907896 | Tapping fitting 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... | 06/21/2005 |
| 6758237 | Tapping valve 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 | 07/06/2004 |
| 6681796 | Drainage valve pipe tap assembly 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 hav... | 01/27/2004 |
| 6581499 | Automated pipe cutter tool box 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 th... | 06/24/2003 |
| 6578267 | Air tool for sectioning a length of tubing 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 le... | 06/17/2003 |
| 6260573 | Pipe-drilling fitting 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... | 07/17/2001 |
| 6216723 | Self-tapping tee 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 sidew... | 04/17/2001 |
| 6058820 | Rod cutter 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 ro... | 05/09/2000 |
| 6041806 | Method and ball valve assembly for inserting a valve in a line 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... | 03/28/2000 |
| 6012475 | Self-piercing valve assembly 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 embodime... | 01/11/2000 |
| 5975117 | Pipe fitting for drilling 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 p... | 11/02/1999 |
| 5829142 | Motorized tool having rotatably driven workpiece accessories 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, s... | 11/03/1998 |
| 5806188 | Slotter 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 rolle... | 09/15/1998 |
| 5791364 | Attachment for stopper for plastic gas pipelines 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 ... | 08/11/1998 |
| 5732732 | Tapping fitting 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 ... | 03/31/1998 |
| 5577529 | Tapping fittings 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 whi... | 11/26/1996 |
| 5483990 | In-line valve for insertion in a pressurized fluid flow line 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 wh... | 01/16/1996 |
| 5316037 | Valve for insertion in a pressurized fluid flow line 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 wh... | 05/31/1994 |
| 5285576 | Tool for grooving or cutting pipes 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 i... | 02/15/1994 |
| 5210949 | Hose trimming apparatus 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 se... | 05/18/1993 |
| 5022155 | Hose trimming apparatus 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 se... | 06/11/1991 |
