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| Number | Title | Issue Date |
| 7380430 | Rotary draw tube bender The invention is a rotary draw bending machine and process for bending materials such as tubes or pipes into precise bends. A spindle holds a bending die, and a radial arm holds a counter-die. The spindle and arm are simultaneously rotated in opposite directions by ... | 06/03/2008 |
| 7360385 | Quick change bend tooling bolster A tube bending assembly adapted for use with a rotary draw bender, and preferably including a bend die mounting unit for securing a plurality of stacked bend dies drivenly coupled to the bender, a bend die tower unit for structurally supporting the bend die mounting... | 04/22/2008 |
| 7293444 | Bending apparatus for rod-shaped and tubular workpieces A bending apparatus for rod-shaped and tubular workpieces, includes a rotatable bending mandrel with a bending groove is provided with a wrinkle smoothener, which immediately precedes the bending mandrel, and two sliding jaws. In order to change the bending directio... | 11/13/2007 |
| 7134310 | Tube bender A tube bender includes a worktable, a rail on the worktable, a tube-pushing device and a tube-bending device. The tube-pushing device is positioned on the worktable, having a moving base and a clamper at one side of the moving device. The clamper clamps a tube being... | 11/14/2006 |
| 7104100 | Bending device for tube A tube bending device having draw-bending and compression-bending functions and capable of bending in all processes in a unit of device is provided. The device performing bending by rotating the tube at a predetermined angle with the tube pressured against a circumf... | 09/12/2006 |
| 7010951 | Feeding mechanism of an automatic pipe bending machine A feeding mechanism of a pipe bending machine is equipped with several auxiliary hydraulic cylinders in addition to an original power source for providing power to feed a pipe; the auxiliary hydraulic cylinders are joined to an auxiliary fixing member at output rods... | 03/14/2006 |
| 6912886 | Bending apparatus for pipe and tubing A bending apparatus is especially adapted for mounting to a vise to hold the bending apparatus in an aligned position so that the bending apparatus may impart a desired angle bend on a workpiece. The bending apparatus includes an orienting member with a cross-sectio... | 07/05/2005 |
| 6715328 | Bracing device for a bending machine A bracing device for a bending machine, in particular for a tube bending machine, in the form of a slide rail moved linearly in slaved fashion in the bending operation and having a plurality of slide rail extensions for different bending radii, which are mounted on ... | 04/06/2004 |
| 6189354 | Method and modular-multistation device for folding profiles The invention relates to a method and multistation device for folding profiles. The folding stations (1, 11, 15, 16, 17) required are modules mounted interchangeable and adjustable on a common machine body (2), which permits quick and simple adaption to t... | 02/20/2001 |
| 5617753 | Low force auto-open tooling for tube bending machine A tube bending machine is provided which includes a rotatable bend die about which the tube is bent and a rotatable clamp die disposed outwardly of said bend die and movable to secure the tube between the clamp die and the bend die. A clamp die positionin... | 04/08/1997 |
| 5499521 | Tube bender apparatus Apparatus intended for bending heavy through thin wall pipe and tubing includes a generally circular bending shoe mounted for rotation about a first axis and having a plurality of semi-circular concave grooves in its outer surface. The grooves are of diff... | 03/19/1996 |
| 5495740 | Pipe bending machine The pipe bending machine comprises a rotatable bending template (14) and a pivot arm (21) pivotable about the axis of the bending template and supporting a clamping jaw (22). In order to be able to perform rightward bending as well as leftward bendings of... | 03/05/1996 |
| 5148695 | Adjustable pipe and tubing bender A bending apparatus for metal pipe and tubing which includes an upright spindle assembly; a lower section mounted on the spindle assembly for rotational movement around the spindle, the lower section can be selectively moved around and engaged with the sp... | 09/22/1992 |
| 4986104 | Portable pipe-binding minimachine Portable manually or motor-controlled pipe-bending minimachine which, in spite of its small size as compared with similar machines, is easier and handier to operate on site for the bending of pipes ranging 4 mm to 22 mm in diameter. The minimachine is pro... | 01/22/1991 |
| 4981030 | Portable pipe bending machine with electromechanical control A portable pipe bending machine to bend pipes up to an angle of 180°, in the range of outside diameters from about 4 mm to 42 mm, and of thicknesses from about 0.5 mm to 2.5 mm. A main carrying structure (11) of a light alloy in the form of a parallelpip... | 01/01/1991 |
| 4546632 | Portable conduit bending apparatus A portable electric driven conduit bender which accommodates rigid, IMC and thinwall conduit of various sizes in a single setup includes a rotatable, cone-shaped bending shoe, and a roller assembly for supporting conduit during bending. The bending shoe h... | 10/15/1985 |
| 4532787 | Portable electromechanically-controlled pipe-bending apparatus A portable pipe-bending apparatus is electromechanically controlled to bend a pipe up to an angle of 180° without providing any undesirable uneven stretching, also when the pipe is formed of a material which is particularly sensitive to stretching stress... | 08/06/1985 |
| 4479373 | Tube bending assembly, particularly for thin wall and small and medium diameter metal tubes The bending assembly for one or more tubes at a time comprises a matrix or ie with substantially smooth cylindrical skirt and a sliding block provided with a groove for receiving the tubes to be bent and angularly rotatable relative to the matrix or die. T... | 10/30/1984 |
| 4380920 | Adjustable wiper die for bending tubular members A wiper die which is arranged to be adjustable as wear takes place during the bending of tubular members. The adjustable wiper die comprises a fixed carriage which is secured in a contiguous relationship with respect to the bending die, and includes an ad... | 04/26/1983 |
| 4325244 | Self-repairing wiper die This invention relates to a wiper die arrangement improvement for use on tube bending machine tools, and comprises an assembly (18) including a base member (19) that can be mounted to the tube bending machine and a wiper die insert member (20) engaged wit... | 04/20/1982 |
| 4059978 | Tube bending machine Portable hydraulic tube bending machine adjustable for bend angle and adjustable to tubing with and without collars and straight and pre-bent tubes, whereby complicated bendings can be carried out at the place of use and with a minimum of space.... | 11/29/1977 |
