Bizarre Patents
A method of swing on a swing is disclosed, in which a user positioned on a standard swing suspended by two chains from a substantially horizontal tree branch induces side to side motion by pulling alternately on one chain and then the other.
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| Number | Title | Issue Date |
| 7370397 | Tool kit and method for repairing a damage vehicle body member with a hem flange A method and kit for repairing vehicle door skins by reorienting vehicle hem flanges from a closed orientation to an open orientation to allow removal of a damaged door skin from a door frame and replacing with a new door skin with an open orientation hem flange tha... | 05/13/2008 |
| 7353682 | Pipe flaring tool A pipe flaring apparatus for use in flaring the end of a pipe preferably comprises a housing, a three jaw clamping chuck (3) in the housing which clamps the pipe (11) as the chuck (3) is propelled along an inclined surface (10a) of... | 04/08/2008 |
| 7318334 | Powered pipe flaring tool The powered pipe cutter and the pipe flaring tool both have a piston slidably mounted in a cylinder. The cylinder has a top end closed by a top end plug. A crimped cartridge bore in the top end plug communicates with a gas expansion chamber. A bolt and firing pin as... | 01/15/2008 |
| 7313942 | Forging machine for the upsetting of deformed reinforcement bars Forging machine for the cold forging of deformed steel bars includes upsetting and clamping dies housed in the same casing. The dies bear a continuous cavity so as to enable forging of long products. ... | 01/01/2008 |
| 7275407 | Process for producing rotationally symmetrical components A process for producing a hollow monoblock shaft from a pipe, the pipe initially having a constant diameter and a constant wall thickness, and the monoblock component including at least one area of its length being of a smaller outside diameter and a greater wall th... | 10/02/2007 |
| 7257982 | Apparatus for forming a beam member used as a torsion beam for the rear wheel suspension of an automobile An apparatus for forming a beam member for a torsion beam in a rear wheel suspension system of an automobile wherein said apparatus includes top and bottom dies for forming a U-shaped or V-shaped section and an extension section of the beam member, upper and lower p... | 08/21/2007 |
| 7237420 | Device for the plastic deformation of work pieces The present invention relates to a device for the deformation of workpieces, in particular for the plastic shaping of pipe ends, with a shaping unit actuated by the pressure of a fluid and with a prestressing unit arranged on a common longitudinal axis and actuated ... | 07/03/2007 |
| 7216519 | Strain monitoring for part quality analysis A device for determining the quality of a part includes a sensor for detecting a strain on a selected portion of a part forming machine. A controller utilizes the detected amount of strain to make a determination regarding the quality of a corresponding part. In one... | 05/15/2007 |
| 7213894 | Shaft for roller wheel The invention provides a shaft for a roller wheel which is excellent in strength and can achieve a weight saving. The invention provides a shaft for a roller wheel which rotatably supports a roller (3) outward fitted between both end portions (5a, | 05/08/2007 |
| 7134734 | Shaft for roller wheel The invention provides a shaft for a roller wheel which is excellent in strength and can achieve a weight saving. The invention provides a shaft for a roller wheel which rotatably supports a roller (3) outward fitted between both end portions (5a, | 11/14/2006 |
| 7037102 | Plunger molding machine with tapered bore and thermal transfer fins A plunger machine for molding reinforced polymer compositions is provided. The plunger machine has particular application in molding polymer that is reinforced with particles having an aspect ratio that is greater than 1:1. The plunger machine includes a barrel hous... | 05/02/2006 |
| 7013697 | Method for expanding a tubular blank A method for expanding tubular blanks includes pre-expanding or initially expanding a section of the tube by forcing a punch into an open end of the tube. The punching process may be repeated to achieve up to approximately 50% expansion from the original configurati... | 03/21/2006 |
| 6993952 | Multipurpose horizontal press having a fixed workpiece-holder for a tubular workpiece to be drawn or tapered A multipurpose horizontal press having a fixed workpiece-holder for a tubular workpiece to be drawn or tapered comprising a press body (1) surmounted by a worktable (2), having a superior surface (3) and an inferior surface (4), on the wo... | 02/07/2006 |
| 6966210 | Tool for flanging coated brake pipes A tool for flanging coated brake pipes has a basic body with a receiving groove and a clamping jaw with a clamping groove. The receiving groove and the clamping groove form a clamping channel, in which the brake pipe can be received snugly. To achieve the snug hold ... | 11/22/2005 |
| 6935153 | Method and apparatus for flaring a tube A tool for forming flares in, for example, corrugated elliptical tubing. The tool may have a retaining portion having a longitudinal axis located between an impact surface and a die head. The die head is coupled to the retaining portion on a first side, and on a sec... | 08/30/2005 |
| 6932358 | Quick change endform tool cartridge A quick change tool cartridge for high production endform machines having a plurality of work stations mounted upon an indexable rotary head. The tool cartridge system is mounted upon the tool support by quick connect radially movable elements or pins radially displ... | 08/23/2005 |
| 6923035 | Method and apparatus for forming a modified conduit A conduit modifier may be used to corrugate at least a portion of a conduit. The conduit modifier may include at least a first plurality of rollers arranged in a first pattern around a passageway. The first plurality of rollers may form ridges and grooves lengthwise... | 08/02/2005 |
| 6832502 | Apparatus for swaging an object An apparatus for swaging an end of a tubular (22) is described as comprising a swaging head (17) for providing the swage to the end of the tubular (22). The swaging head (17) has two or more formations (22A, 22B) provided th... | 12/21/2004 |
| 6751996 | Dynamic punch A forming tool for pipe ends with a fixing device holding the pipe and a flanging die acting on the projection of the pipe end, where the flanging die has a mandrel which can be driven into the pipe end. A forming die surrounds the mandrel. The mandrel and the formi... | 06/22/2004 |
| 6748785 | Forming machine with cutting device A machine with a cutting device includes a stationary bar-cutter blade and a slicing blade which cooperates with and is displaceable in relation to the bar-cutter blade. The slicing blade is a closed circular blade. The bar-cutter blade is a half blade and cooperate... | 06/15/2004 |
| 6735994 | Forging of workpieces The invention relates to apparatus for enlarging part of a metal workpiece by cold forging, characterised by an enlarging die (5, 6) and by the die having means (8, 8′) to alleviate stress to the workpiece during forging. ... | 05/18/2004 |
| 6708548 | Device for forming an end area of a workpiece The invention relates to a device for forming an end area of a workpiece (2), especially for cold press-forming an end area of a pipe, comprising two force transmitting elements (7, 9) which are guided in a common housing (3). The device is char... | 03/23/2004 |
| 6508097 | Modular system for expanding and reducing tubing A modular endforming mechanism for modifying an end of a thin-walled malleable tube is herein disclosed. The modular endformer comprises a gripping module having a collet means for grasping a tube inserted into the gripping module. The gripping module may... | 01/21/2003 |
| 6497132 | Flaring die with stress relief features A pipe flaring die has a central opening with a profile configured to reduce stress concentrations at the base of the flared portion of the pipe. The profile includes an annular relief area intermediate an annular gripping surface and an annular beveled p... | 12/24/2002 |
| 6446479 | Apparatus for handling forging machines A handling apparatus for forging machines, especially for advancing a wire intended for the manufacture of screws, rivets and the like includes a first cam, keyed on a first motor-driven rotary shaft, cooperating with a first angularly orientable lever, a... | 09/10/2002 |
| 6412160 | Swaged tube fitting collar and die An assembly for retaining a work piece and fitting together for placement in a swage machine. The assembly includes a die and a collar to keep the work piece from moving during the swaging process. The collar includes two clamping sections that are connec... | 07/02/2002 |
| 6408672 | Process for cold forming tube ends A process for cold forming the ends of metal tubes to reinforce same includes a die cavity into which the tube is placed. The die cavity includes a section with a recess having a greater diameter than the tube. The tube is placed such that a portion is le... | 06/25/2002 |
| 6360415 | Flanged pipe unit and method of producing same To produce a flanged pipe unit, a separate flange is put on a pipe and then the pipe is subjected to a punching to achieve an interlocked connection between the flange and the pipe. The flanged pipe unit produced by the method of the invention comprises a... | 03/26/2002 |
| 6260401 | Method of molding high expansion pipe and the high expansion pipe When a flaring punch 2 is pressed into a pipe P from an end thereof to form a concentric or eccentric flared portion Pa, the taper angle θ of the flaring punch is adjusted to apply axial compressive forces to the flared portion Pa thereby to maintain the... | 07/17/2001 |
| 6233998 | Easy mode pipe-reducing device An easy mode pipe-diameter reducing device provided for feeding a metallic pipe into the hole confined by the wall surfaces of a conical spring mounted in the die bodies of the device, wherein, wall sections of the die bodies with constant diameter guides... | 05/22/2001 |
| 6145185 | Method for forming a connecting pipe of a high pressure connector for fluid A method for forming a pipe includes providing a tubular workpiece having an upper portion and a lower portion; forming a tapered hole in the inner wall of the upper portion of the workpiece and forming an annular shoulder on the outer wall of the upper p... | 11/14/2000 |
| 6047584 | Multipurpose head forming and finishing apparatus A multipurpose head forming and finishing apparatus includes a support frame (3) forming, on a horizontal plane, an arc holding a pair of arms (3a, 3b) symmetrical with respect to a median vertical plane. The frame (3) has a clamp (4), operated in a horiz... | 04/11/2000 |
| 5895324 | Process for forming axially-extendable bolt by upsetting An axially-extendable-bolt forming process by upsetting includes preparing a die having a through bore, and an internal upsetting cavity and a buffer space, a rod-shaped bolt precursor and a knock-out member, primarily pressing a leading end of the bolt p... | 04/20/1999 |
| 5799528 | Manually operated tool for upsetting a steel reinforcement bar A portable tool for mechanically upsetting a steel reinforcement bar (e.g. rebar), one end of which is typically embedded in a concrete or similar structure, so that a relatively wide upset head can be formed at the protruding end to permit the bar to be ... | 09/01/1998 |
| 5782128 | Hand tool for flaring a tube A manually operable hand tool apparatus for providing a radially outward flare, known as push connect flare, away from the distal end of a deformable tube. The hand tool comprises a gripper-die means for securing the tube, a yoke portion having internal t... | 07/21/1998 |
| 5776001 | Thread formation The invention relates to thread formation and particularly to the formation of threads on deformed steel reinforcing rods. The method of forming a thread on the steel reinforcing rod comprises the steps of cold upsetting an end region (1) of a deformed st... | 07/07/1998 |
| 5743301 | Metal pipe having upset ends A method for making an internal upset (20A) on metal drill pipe (10) having a transition section (24A) with a curved inner periphery (28A) of a concave curvature extending continuously between the central portion (12) of the pipe (10) and the increased th... | 04/28/1998 |
| 5709121 | Method and apparatus for hydraulically upsetting a steel reinforcement bar A method and a portable tool for hydraulically upsetting a steel reinforcement bar (e.g. rebar), one end of which is typically embedded in a concrete or similar structure, so that a relatively wide upset head can be formed at the protruding end to permit ... | 01/20/1998 |
| 5517843 | Method for making upset ends on metal pipe and resulting product A method for making an internal upset (20A) on metal drill pipe (10) having a transition section (24A) with a curved inner periphery (28A) of a concave curvature extending continuously between the central portion (12) of the pipe (10) and the increased th... | 05/21/1996 |
| 5487294 | System for forming end flanges on pipes The system increases the diameter to which pipe flanges can be flared. The tendency of the radial wall of the flange to crumple inwards is obviated by coining the transition corner of the wall. First, the pipe end is belled out to provide access for the c... | 01/30/1996 |
