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| Number | Title | Issue Date |
| 8001819 | Piercing method and piercing apparatus using hydroforming and hydroformed part and structure The present invention was made with the object of eliminating the short pipe member when attaching a bolting nut to a hydroformed part, preventing an increase in the difficulty of hydroforming for attaching the nut, extending the nut length so as to enable sufficien... | 08/23/2011 |
| 7823429 | Method for manufacturing an axle component, and axle component which is manufactured as a result The invention relates to a method for manufacturing an axle component having the following steps: arranging a hollow semi-finished product such as a tube in a die for forming the axle component; introduction of fluid into the interior of the hollow semi-finished pro... | 11/02/2010 |
| 7810366 | Electrohydraulic trimming, flanging, and hemming of blanks A method of electrohydraulically trimming a blank involving positioning a blank on a trimming member having a cutting edge such that a portion to be trimmed extends over the cutting edge and is in fluid communication with a chamber. Immobilize the blank with respect... | 10/12/2010 |
| 7552609 | Piercing device of hydroforming mold Disclosed is a piercing device of a hydroforming mold with a lower steel having a cavity therein, which can make the replacement of the pierce punch easier. The piercing device comprises: a pierce punch, the front edge portion of which is inserted into the cavity, f... | 06/30/2009 |
| 7503198 | Slug expanding and capturing apparatus and method for hydroforming application An apparatus and method for piercing a hole in a work piece suitable for hydroforming applications is provided. The apparatus includes first and second die portions forming a die cavity for the work piece. Each die includes a punch cavity generally perpendicular to ... | 03/17/2009 |
| 7503197 | Apparatus for hole punching Apparatus is provided for punching holes through the opposed first and second tube walls of a hydroformed tube while the tube is within the die cavity formed by a pair of hydroforming dies. A punch is mounted within a punch bore that intersects with the die cavity. ... | 03/17/2009 |
| 7464571 | Hydroforming method and mold used for the hydroforming method According to the hydroforming method by the invention, when slots with the aspect ratio of 3 or more are pierced onto the bulge-formed portion made by the hydroforming, even the piercing can be carried out within a series of processing steps in the hydroforming, the... | 12/16/2008 |
| 7441433 | Tool for forming threaded hole in a hydroformed part A tool forms a threaded hole in a hydroformed part while the part remains in a hydroforming die cavity and under pressure. The tool has a hole-piercing end portion adapted on advancement of the tool to pierce and form a hole in the part and an extruding portion adap... | 10/28/2008 |
| 7367252 | Integrated circuit package separators An integrated circuit package separator. A base having a plurality of pins extending upwardly therefrom is provided. A support is provided over the base. The support has an upper surface and a plurality of holes. The pins extend through the holes and upwardly beyond... | 05/06/2008 |
| 7360384 | Apparatus and method for hydroshearing and hydrotrimming for hydroforming die An apparatus and method for hydroshearing and hydrotrimming for a hydroforming die includes a cutting insert fixed relative to the hydroforming die. The apparatus and method also includes a disposable insert fixed relative to the hydroforming die. The apparatus and ... | 04/22/2008 |
| 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 |
| 7315684 | Device for producing a hollow profile A device for producing an essentially T-shaped hollow profile or a hollow profile provided with at least one branch. The device may have a multipart mold which is intended for internal high pressure forming, in which a hollow profile having at least one initially do... | 01/01/2008 |
| 7313940 | High-pressure shaping system A high-pressure system for hydroshaping a hollow workpiece has a lower die and an upper die vertically shiftable above the lower die and forming therewith a cavity shaped to hold the workpiece. An upper actuating element bears downward via a vertically compressible ... | 01/01/2008 |
| 7293442 | Method for hydroforming a ring-shaped tubular structure A method is provided for hydroforming a ring-shaped tubular structure such as a door opening for a vehicle body. The method includes providing a ring-shaped tubular blank having a hollow sealed interior, capturing the ring shaped tubular blank in a hydroforming die ... | 11/13/2007 |
| 7263757 | Electromagnetic trimming, flanging and hemming apparatus and method Electromagnetic (EMF) trimming, flanging and hemming steps are performed at a single workstation in a combined fixture designed to form a hemmed panel assembly, such as a vehicle closure panel. Two or more formed sheets, outer and inner panels, are positioned togeth... | 09/04/2007 |
| 7249480 | In-die hydropiercing device for piercing holes in hydroformed parts An in-die hydropiercing device comprises a punch with an annular shearing blade which is operated by a hydraulic cylinder and is received in a ring-shaped die button mounted in one of the dies that form a die cavity for the hydroforming of a part, a center support m... | 07/31/2007 |
| 7249481 | Process for forming a hydroformed automotive component with integrated weld flange A process for forming a hydroformed automotive component with an integrally formed attachment bracket or weld flange begins with a tubular blank manufactured through a roll-forming process to convert sheet metal into a tubular body portion having excess parent sheet... | 07/31/2007 |
| 7229113 | Structural assembly for vehicles and method of making same A structural assembly for a vehicle and method of making same includes a hydroformed tubular member extending axially, a reinforcement disposed within and generally perpendicular to an axis of the tubular member, and at least one securement to secure the reinforceme... | 06/12/2007 |
| 7204113 | Punch for hydroforming die A punch for a hydroforming die includes a body, a neck extending axially from the body, a head extending axially from the neck and having a diameter less than a diameter of the body and a thumbnail slot extending axially and radially into the head to allow fluid wit... | 04/17/2007 |
| 7178240 | Method for molding bicycle tube This invention relates to a method for molding a bicycle tube and the method comprises the following steps: first, providing a tube and then controlling thickness of the tube by a drawing and extruding process for forming a molding portion. Second, plasticize other ... | 02/20/2007 |
| 7159426 | Quick change assembly for hydroforming punches A punch assembly used with a hydroforming die includes a punch cylinder for mounting to the hydroforming die and having a movable rod. The punch assembly also includes a punch for piercing an opening in a tubular member disposed in the hydroforming die. The punch as... | 01/09/2007 |
| 7155948 | Forming tool The invention relates to a forming tool for forming sheet blanks in a diaphragm press of the kind comprising an openable, closed pressure chamber, which is divided in a gas and liquid tight manner by means of a flexible diaphragm. The forming tool is arranged on one... | 01/02/2007 |
| 7140325 | Pour-on application method and devices The present invention relates to a device for applying a liquid pesticidal formulation to an external surface of a domestic animal, the device comprising an inlet and a plurality of spaced apart outlets, wherein the device is adapted such that when the middle of the... | 11/28/2006 |
| 7127924 | Double action punch assembly for hydroforming die A double action punch assembly for a hydroforming die includes a first punch segment having an aperture extending therethrough. The double action punch assembly also includes a movable mounting block disposed in the aperture of the first punch segment. The double ac... | 10/31/2006 |
| 7121129 | Folded-seam connection, method of producing it and device In ventilation and air-conditioning technology, so-called spiral pipes have to be joined together in a tightly sealed manner at widely differing angles, which is generally carried out by segment bends and pipe sections. An improved, durable seal of folded-seam conne... | 10/17/2006 |
| 7111482 | Punch assembly for hydroforming die A punch assembly for a hydroforming die includes a servo motor, a ball screw connected to the servo motor, and a ball nut disposed about the ball screw for movement along the ball screw. The punch assembly also includes a link mechanism connected to the ball nut and... | 09/26/2006 |
| 7104099 | Center support punch assembly for hydroforming die A center support punch assembly for a hydroforming die includes a center support member for fixed attachment to a die. The center support punch assembly also includes a button disposed about and space from the center support member for fixed attachment to the die. T... | 09/12/2006 |
| 7021098 | Method and device for creating a hole on the outer circumference of a hollow profile In a method and a device for creating a hole on the outer circumference of a hollow profile which is circumferentially closed and under an internal high pressure, before hole-punching, a punch which is integrated in the internal high pressure forming mold such that ... | 04/04/2006 |
| 7017249 | Apparatus and method for forming a tube having an article attached thereto In the present invention, at least one tubular blank and at least one article such as a metal stamping, to be attached to a hydroformed part, are loaded into a die. The tube is hydroformed using typical methods. The article is positioned in the die such that, when t... | 03/28/2006 |
| 7003995 | Hydrotapping power unit A hydrotapping power unit is disclosed that is operable to hold a hydrotapping tool in a home position adjacent a part while the latter is being hydroformed in a die cavity, to then advance the tool to pierce a hole in the hydroformed part while the part remains in ... | 02/28/2006 |
| 6955070 | Device for punching work pieces in an internal high-pressure forming tool A device for punching work pieces in an internal high-pressure forming tool includes a punching die guided displaceably in a bore of the forming tool. The device also contains a drive with which the punching die is moved back and forth between the in-use position an... | 10/18/2005 |
| 6952941 | Apparatus and method for forming an article and performing a secondary operation in-situ An apparatus and a method for forming an article and performing a secondary operation on the article in-situ. The apparatus includes a closure and a die having a cavity. A source of pressurized gas forces a portion of a sheet into contact with a forming surface havi... | 10/11/2005 |
| 6948768 | Truck cab space frame A space frame for a truck cab, the space frame having a pair of hydroformed, longitudinally extending inner side rail members, a laterally extending and hydroformed connecting member extending between the inner side rail members and extending laterally beyond each o... | 09/27/2005 |
| 6945420 | Reverse buckling sanitary rupture disc assembly A metal reverse buckling sanitary rupture disc is provided having a central bulged section in which the convex surface of the bulged section is relatively smooth and of substantially uninterrupted configuration. A small segment region of the central bulged section i... | 09/20/2005 |
| 6941786 | Component specific tube blanks for hydroforming body structure components A hydroforming system includes a dual conical tube formed from a blank. The dual conical tube has a first end, a second end and a central portion positioned between the first and the second ends. The central portion has a smaller cross sectional area than the first ... | 09/13/2005 |
| 6931901 | Method and apparatus for forming a threaded hole in a hydroformed part Method and apparatus are disclosed wherein a required threaded hole is formed in a hydroformed part with a single tool while the part remains in a hydroforming die cavity. In forming the threaded hole, a hole is first pierced in the wall of the part and then an annu... | 08/23/2005 |
| 6923100 | Method and apparatus for punching particle board A punch and backer plate combination is disclosed as an example of the present invention. The punch has a concave recess in its extended end. The punch may be round or have a rectangular shape in plan view and includes a backer plate having an aligned opening with a... | 08/02/2005 |
| 6915672 | Hydrotapping power unit A hydrotapping power unit is disclosed that is operable to position and hold a hydrotapping tool in a home position adjacent a part while the part is being hydroformed in a die cavity, to then advance the tool to pierce a hole in the hydroformed part while the part ... | 07/12/2005 |
| 6751994 | Method and apparatus for forming a structural member A method of forming a structural member includes hydroforming the blank to form a hydroformed member and finishing the hydroformed member by positioning the wall of the hydroformed member between a die surface and an electromagnetic discharging element having a non-... | 06/22/2004 |
| 6739166 | Method of forming tubular member with flange A method of forming a tubular member with at least one flange includes the steps of providing a tubular member, expanding at least one portion of the tubular member, and positioning the tubular member between open die halves. The method includes the steps of applyin... | 05/25/2004 |
