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| Number | Title | Issue Date |
| 7802459 | Conduit bender with method and system for making ninety degree bends A bender for conduit which may make ninety degree bends in a length of conduit. The bender includes a bending frame, a bending deck, a rising shoe assembly and a traveling shoe assembly. A length of conduit is oriented parallel to the bending deck and then a desired... | 09/28/2010 |
| 7770428 | Hot bend pipe and a process for its manufacture A high-strength hot bend pipe which has a balance between an excellent strength of at least X70 grade and toughness and which has excellent tensile properties and a weld metal with excellent low temperature toughness is manufactured. A UOE steel pipe having a base m... | 08/10/2010 |
| 7401490 | Raised-center axle and process for forming A cold-formed, raised-center axle for a heavy-duty vehicle includes a central tube having a pair of ends, a pair of spindles attached to the central tube ends, and a wall thickness of from about 0.500 to about 0.625 inches. A hump is formed in the center portion of ... | 07/22/2008 |
| 7328510 | Elbow rotator An elbow rotator apparatus for rotating an integrally formed section of an elbow workpiece includes a pair of gripping arms which are selectively positionable in a first position displaced from the elbow workpiece, and a second position in which the gripping arms ar... | 02/12/2008 |
| 7328601 | Precision degree pipe bender A three version precision degree pipe hand bender using stop members inserted into degree slots cut into a bender head outer periphery to signal pipe bend completion as the pipe being bent touches a stop member. ... | 02/12/2008 |
| 7302823 | Gauge for pipe bending machine A pipe bending system employing a sensing and indicating system that provides feedback to an operator regarding the position of components of the pipe bending system, such as the pin-up shoe and the stiffback. Apparatus for retrofitting a sensing and indicating syst... | 12/04/2007 |
| 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 |
| 7251979 | Method of producing forged part and method of producing suspension arm for automotive vehicles A method of producing a forged part includes holding a material by a jig, upsetting the material, held by the jig, to a predetermined length by a pair of upsetting dies disposed on both ends of the material, while pressing the upsetting dies on the material, so as t... | 08/07/2007 |
| 7251976 | Apparatus and method for the noncircular bending of tubes A tube bending apparatus adapted for the noncircular bending of a tube includes a modified bend die, a modified wiper die, a translatable and pivotable element and an actuator. The bend die presents a noncircular bending profile having a linearly or nonlinearly incr... | 08/07/2007 |
| 7231798 | System and method for tube bending A method for bending a tube in a pre-selected geometry includes deriving at least one processing parameter from the geometry, applying a thermal source circumferentially to the tube to heat the tube along at least one circumferentially directed path in accordance wi... | 06/19/2007 |
| 7222512 | Method and device for bending a cylindrical tube or the like The invention concerns methods and devices for bending a cylindrical tube or the like (1) so as to obtain two consecutive sections (2, 3) of said tube forming between them a non-null angle alpha. The method is essentially characterised in that it consi... | 05/29/2007 |
| 7219527 | Mandrel for bending A mandrel for bending which inhibits generation of irregularities on the inside of the bend is provided. The mandrel comprises a plurality of plugs in the form of discs and a through-hole is created substantially in the center of each plug. A flexible member is inse... | 05/22/2007 |
| 7207204 | Crimper In one embodiment, an apparatus for shaping an article may comprise a plurality of movable dies arranged to form a chamber whose size may be varied by moving the dies. Each of the dies may have a contacting surface for contacting the article to be shaped. The chambe... | 04/24/2007 |
| 7204114 | Method of progressive hydro-forming of tubular members A method of progressive hydro-forming of a tubular member includes the steps of positioning a tubular member between open die halves mating with one another to define a first tubular cavity portion in a first stage. The method also includes the steps of progressivel... | 04/17/2007 |
| 7204661 | Pipeline system utilizing cold bends An expansion loop for an above-ground pipeline that utilizes cold bent pipe sections having a bend angle of less than 90 degrees and a bend rate (in degrees per foot) of relatively low severity. ... | 04/17/2007 |
| 7195415 | Writing instrument with variably inclinable tip A writing instrument is ergonomically adjusted to the position of a user's hands. The writing device has a substantially tubular shaft along a main axis, a terminal part at the rear end of the shaft and a substantially conical tip at the front end of the shaft. Usin... | 03/27/2007 |
| 7171835 | Bending apparatus A bending apparatus which can bend pipes and obtain as small curvature as possible without flattening or buckling easily occurring in the bending region. The bending apparatus comprises a bending die for a pipe, a clamping die which rotates together with the bending... | 02/06/2007 |
| 7171834 | External sleeve assisted tube bending A method and apparatus for bending tubes particularly suited for bending thin-walled tubing into a tight radius bend. An external sleeve is used during the bending process which maintains the tube cross sectional area and tube wall thickness, thereby eliminating the... | 02/06/2007 |
| 7171282 | Shell plating developing method, shell plating manufacturing method, computer program for teaching the methods, and image recording medium for teaching the methods The present invention provides a shell plating developing method leading to reduction of the amount of machining and improvement of the efficiency in manufacturing the shell plating. In the shell plating developing method according to the invention, a shell plating ... | 01/30/2007 |
| 7163388 | Method and apparatus for incorporating lumens into the wall of a tubular extrusion A polymer extrusion head for forming continuous shapes having one or more lumens therein. The head includes an extrusion mandrel and die. At least one lumen pipe is disposed radially through a port in the die to intersect the polymer flow in the annular region betwe... | 01/16/2007 |
| 7155952 | Device and method for forming piping components A method and apparatus for being hollow work pieces has a pressurizing arrangement that allows the pressure to be adjusted in an internal cavity defined within the work pieces between subsequent bending operations on any one work piece. The internal cavity is define... | 01/02/2007 |
| 7143618 | Method of making pre-formed tubular members A method of making a pre-formed tubular member includes the steps of providing a tubular member extending longitudinally and providing a bending assembly having a mandrel with at least one ball and a bending die. The method also includes the steps of positioning the... | 12/05/2006 |
| 7140224 | Moderate temperature bending of magnesium alloy tubes A method for bending magnesium alloy tubes. The method includes heating the tube at moderate temperature in the range of about 100° C. to 200° C., and bending the tube to a bend angle or forming the tube to a desired shape. ... | 11/28/2006 |
| 7140225 | Method of bending pipe and apparatus therefor A movable die base (2) is moved toward a stationary die base (1). A pressing force is applied by a bending punch (21) disposed on the movable die base to a bending target portion of a pipe (A) which is placed on a die (11) provided on the... | 11/28/2006 |
| 7131313 | Bending method and mandrel of multi-layered pipe A method where an inside mandrel is inserted into the inner pipe of the multi-layered pipe, a tubular outside mandrel is inserted into the annular space between the inner pipe and outer pipe, the multi-layered pipe is clamped to a bending die by a clamping die, the ... | 11/07/2006 |
| 7131312 | Pipe bending apparatus and method A pipe bending apparatus for performing a pipe bending method, wherein the method includes filling a workpiece with a liquid, pressurizing the liquid to a target pressure level, and bending the workpiece to create a bent pipe. Preferably, the pressure level is inver... | 11/07/2006 |
| 7127928 | Core bar for bending of a pipe and method of bending of a pipe A core bar for bending of a pipe and a method of bending of a pipe are provided whereby collapse of the pipe can be prevented and bending can be automated at low cost. Ends of the respective core bar portions are formed such that, when the ends of the two cylindrica... | 10/31/2006 |
| 7121131 | Water cooled panel and forming method A bending method for producing a coil using a thick wall pipe, comprising a simultaneous hot bending and pressing of the pipe by which it is possible to obtain a coil without welded 180° elbows since the return sections are integral part of the pipe. ... | 10/17/2006 |
| 7076982 | Concentric bore bend die and clamp insert assembly A concentric bore bend die and clamp insert assembly including a bend die and a clamp insert positioned within a recess formed in the bend die in a tube clamping area of the bend die. The clamp insert includes a curved portion matingly received within a correspondin... | 07/18/2006 |
| 7076984 | Bending machine and tube support and drive device thereof A bending machine that includes a device that is used to drive and support a tube that is to be bent in relation to a bending head which is disposed at one end of a frame of the bending machine. The device includes a mandrel member that is solidly connected to an ex... | 07/18/2006 |
| 7073259 | Apparatus and method for manufacturing an automotive beam In an apparatus and method for manufacturing an automotive beam for use as a beam in structural components of automobiles, the beam is provided with significant improvements in terms of torsional rigidity and yield strength. The beam improves the overall safety of p... | 07/11/2006 |
| 7047703 | Metal framing strut with coiled end portions A building strut is formed as a cylinder having a plurality of contiguous sidewalls. Opposing terminal ends of the sidewalls define the ends of the cylinder. One or more of the sidewall ends are formed as a coiled spiral. These spirals may be formed within one of th... | 05/23/2006 |
| 7010950 | Suspension component having localized material strengthening A suspension component for an automobile, such as a stabilizer bar, is provided and includes at least one localized portion having a strengthened outer surface. The localized portion is positioned at a location of highest stress along the suspension component. A met... | 03/14/2006 |
| 6980880 | Conduit bending system A bend determining system automatically determines the position of a second bend of an offset based upon input offset and angle specifications. The system automatically repeats the angle of a first bend of the offset at the second bend without requiring an installer... | 12/27/2005 |
| 6948649 | Method of producing steel pipes, and welded pipes The high yield ratio problem intrinsic in high-strength steel pipes is solved and a method of producing a steel pipe, while securing the pipe roundness is provided. A steel pipe produced from a steel plate by forming and welding is subjected to 0.3 to 1.2% of expans... | 09/27/2005 |
| 6941787 | Bending device for thin-walled metal pipes A bending device is described for thin-walled metal tubes (R) made of a straight tube guide (1), a core template (2), which adjoins the tube guide (1) and is pivotable in relation thereto, having a connection strip (3), and a mandrel, hav... | 09/13/2005 |
| 6912787 | Method of forming a joist assembly and a chord used in such joist assembly A method of forming a joist assembly including the steps of forming a top chord, forming a bottom chord, bending a tubular member into a serpentine configuration, positioning an upper bent portion of the tubular member into the top chord, positioning a lower bent po... | 07/05/2005 |
| 6883218 | Method for the production of a cold formed piece part made out of a steel plate This invention relates to a procedure for manufacturing cold-formed components (R) out of sheet steel and use of a sheet bar comprising the following steps: Generation of a sheet bar (P) out of a base plate (G), which consists of a first steel material; replacement ... | 04/26/2005 |
| 6813920 | Method for producing a bumper reinforcement A method for producing a bumper reinforcement having a hollow and a substantially rectangular cross sectional shape formed by the steps of providing a straight tubular member and forming a curved bumper reinforcement, continuously; wherein angle portions of the stra... | 11/09/2004 |
| 6810705 | Method for forming an initial profile or a tool of the kind and a profile therefor A process for forming a starting profile with a profile cavity by a bending forming process and an internal high pressure produced in a sealed profiled cavity by way of a fluid, including the steps of initially, before forming by internal high pressure, forming a st... | 11/02/2004 |
