Did You Know...
...that the Slinky toy was the result of a failed attempt by engineer Richard James to produce an antivibration device for ship instruments? His goal was to develop a spring that would instantaneously counterbalance the wave motion that rocks a ship at sea. Instead, he developed the Slinky.
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| Number | Title | Issue Date |
| 8028559 | Flying roller hemming anvil process A roller hemming system for edge hemming vehicle closures from nested metal panels includes an anvil robot moveably supporting a hemming anvil having a working surface, a clamping spider cooperable with the anvil robot for clamping the nested metal panels on the wor... | 10/04/2011 |
| 7987689 | Wheelhouse hemming apparatus and method A robotic wheelhouse hemming apparatus includes a base. A multi-axis robot is mounted on the base. The robot includes an arm. A roller hemming head is mounted on an end of the arm for roller hemming. A slide mechanism is mounted for multi-directional movement on the... | 08/02/2011 |
| 7934408 | Roller hemming method and hemmed member In a roller hemming method for folding a flange erected from a workpiece by pressing a working roller against the flange and moving the working roller relative to the flange, the flange is folded by: a first temporary bending step of bending a tip-side portion of th... | 05/03/2011 |
| 7614272 | Prespray processing method and prespray processed engine cylinder block A prespray processing method includes preparing a work surface for spray coating, roughing the work surface by pressing a tool against the work surface, having a material of the work surface displaced thereon to form a depression thereinto, and keeping the material ... | 11/10/2009 |
| 7516638 | Portable hand tool A portable hand tool includes a frame for guiding a sheet of material, e.g., sheet metal. A pair of shafts are spaced from each other and are selectively slideable relative to the frame to define a plurality of adjustment positions. A pair of rollers are respectivel... | 04/14/2009 |
| 7500373 | Flanging device and flanging method with component protection A flanging device for roll-flanging a rim of a component includes a flanging head, a first flanging roller which is mounted by the flanging head and can be rolled off on the rim during roll-flanging, and a second flanging roller which is mounted by the flanging head... | 03/10/2009 |
| 7478549 | Surface treatment apparatus for planishing metal surfaces A surface treatment apparatus (100) comprises a transporting device (20), a planishing device (30) and a driving device (10). The transporting device comprises a base (21). The base comprises a front portion (212), a rear po... | 01/20/2009 |
| 7424817 | Method of working recessed portion in headrest stay and press apparatus for working recessed portion in headrest stay In a method of working a recessed portion 2 in a headrest stay 32 which is provided in the stay portion 32 of the headrest stay 3 formed of a pipe, a recess 2′ is preformed by pressing against the stay portion 32 an outer ... | 09/16/2008 |
| 7395687 | Method for producing a workpiece in the form of a metal sheet with at least one at least partly rolled edge, and workpiece produced in such a way A method for producing a workpiece in the form of a metal sheet with at least one at least partly rolled edge, said at least one edge to be rolled having a length in a longitudinal direction and a curvature in at least one portion along said longitudinal direction, ... | 07/08/2008 |
| 7347072 | Sheet metal hem forming process A method for hemming an inner panel and an outer sheet metal panel together. The inner panel has an outwardly extending perimeter flange comprising an end surface, an inboard surface, and a beveled surface located between the end surface and the inboard surface. The... | 03/25/2008 |
| 7290423 | Roller hemming apparatus and method Various embodiments of roller hemming apparatus and methods are disclosed including one wherein multiple rollers are carried on a single mount to hem a flange in a single pass, another including induction heating and air quenching means movable with a roller to anne... | 11/06/2007 |
| 7275405 | Straight drawing machine Rectilinear drawing machine for drawing material, especially bars, pipes or sections, with at least two movable drawing cars which are driven on a path, one run being assigned to each drawing car, and the runs can be fixed in a variable manner. ... | 10/02/2007 |
| 7254973 | Roller tool and positional pressure method of use for the forming and joining of sheet material An apparatus and method for forming and joining a first sheet material (A) located in a nest (30) to a second sheet material (B) positioned on top of the first sheet material. The apparatus includes a positional pressure roller tool or positional pressure var... | 08/14/2007 |
| 7237417 | Roll preshaping A preshaping method for massive forming processes is proposed in which a fixed blank is deformed by at least one roll moving continuously forward along a predetermined contour. ... | 07/03/2007 |
| 7237416 | Robotic turntable drive arrangement in a robotic roller hemming system A robotic turntable drive arrangement in a robotic roller hemming system includes a turntable having a top plate and a lower frame. The top plate is rotatable about the lower frame. The turntable further includes a plurality of lock positions. The arrangement also i... | 07/03/2007 |
| 7204116 | Flanging apparatus for roller hemming A flanging apparatus for use in roller hemming with a robotic hemming roller and a roller hemming anvil having a peripherally disposed hemming surface includes a tool insert having a flanging surface including a peripherally disposed flanging edge of a shape general... | 04/17/2007 |
| 7197906 | Cold rolling process for metal tubes In the cold rolling process by pilger rolling that holds a mandrel between each of paired roll-dies, by optimizing the side relief rate SR and the pass schedule factors such as the Area Rd, ID Rd and the feed rate F of the workpiece material, and further by properly... | 04/03/2007 |
| 7188501 | Cold rolling process for metal tubes In the cold rolling process by pilger rolling that holds a mandrel between each of paired roll-dies, by optimizing the side relief rate SR and the mandrel factors like the taper θ1 in the primary deformation zone of the mandrel and the taper θ2 in th... | 03/13/2007 |
| 7152447 | Roller type hemming apparatus A roller type hemming apparatus includes a support member having a slide bore. A ball screw extends through the support member into the slide bore. A bearing is engaged with the ball screw inside the slide bore. The apparatus further includes a guided slide member h... | 12/26/2006 |
| 7124611 | Roller hemming machine A hemming machine having a nest adapted to support a part to be hemmed. A hold down is movable between a retracted position in which the hold down is spaced from the part and an extended position in which the part is sandwiched between the hold down and the nest and... | 10/24/2006 |
| 7107807 | Roll forming machine A roll-forming machine includes in line a device (11) for unwinding metal strip (10) from a strip reel (12), a strip cutter (18), and a roll-forming section (30; 90). The roll-forming section includes a row of forming stations that... | 09/19/2006 |
| 7082799 | Drive system for a rolling mill The invention concerns a drive system (1) for a rolling mill, especially for a cold pilger rolling mill with at least one roll frame (1) movable back and forth, at least one crank drive (3) which has a crank arm (4) with a counterweight (... | 08/01/2006 |
| 7073362 | Drive for cold pilger rolling stand A drive for reciprocating a roll stand of a pilger cold-rolling system has a crank rotatable about an axis transverse to a reciprocation direction of the stand and a tie rod having an outer end journaled on the stand and an inner end eccentrically journaled on the c... | 07/11/2006 |
| 7054711 | Unit for the production of track elements According to the invention, a unit (10) is proposed for the production of track elements (25), which comprises a plurality of clamping devices (14) arranged one after another in the longitudinal direction of the unit. Provided in the clamping de... | 05/30/2006 |
| 7043952 | Method and apparatus for forming flange corners A flange corner forming apparatus includes a die having a planar upper surface upon which a workpiece may be supported and side surfaces intersecting at a flange forming corner. A workpiece clamps the workpiece securely against the die with the flange corner of the ... | 05/16/2006 |
| 6997026 | Quick change metal stud to hemmed track roll forming system An apparatus and method for selectively forming metal stud and track members from sheet material, the apparatus including a stud forming assembly capable of transforming the sheet material into a stud member as the material exits the stud forming assembly, and a tra... | 02/14/2006 |
| 6993950 | Rebar cutter and bender A portable devic for bending and cutting rebar, reinforcing rod, and the like. For cutting, a shaft assembly is movable along a first longitudinal axis (A—A) between a retracted and an extended position. A movable cutting head carried by the shaft assembly coacts ... | 02/07/2006 |
| 6823705 | Sequential forming device A plate member (10) is mounted on a supporting frame (11). The periphery of the plate member (10) is firmly secured by a clamp (12) and a concave die-shaped lower pushing member (13) is caused to rise from below. The lower pushing ... | 11/30/2004 |
| 6718811 | Process for producing a guide tube of a nuclear reactor fuel assembly, mandrel for forming the guide tube, and the guide tube obtained A tubular blank (22) is rolled on a mandrel (14) in a pilgrim rolling mill. In a first rolling stage, a first part of the blank (22) is rolled on a first part (18,19) of the mandrel (14), with a reduction of the outside diameter of... | 04/13/2004 |
| 6694793 | Process in joining In a process in roller folding a folding roller is moved against a workpiece. The urging force of the folding roller against the workpiece is resilient, and the folding roller moves in a path along the workpiece by means of a movement device provided with... | 02/24/2004 |
| 6640599 | Tool for automatic roll folding A folding tool for automatic roll folding comprises a first member (2) which is fixed to a manipulator, and a second member (3), which is rotatably connected to the first member (2). The second member (3) includes a first folding roller (4). A spring is d... | 11/04/2003 |
| 6571459 | Apparatus for manufacturing spindle components With reference to FIG. 3 the present invention relates to a method of manufacture of a product from a first component (4) of deformable material and a second component (5), the method comprising the steps of: inserting a portion of the first component (4) thro... | 06/03/2003 |
| 6496120 | System for on line continuous skidding detection in rolling mills A system for continuous and real-time detection of skidding conditions in a rolling mill in which continuous monitoring of conditions which could lead to skidding and analysis of the monitored conditions is effected and wherein an alarm signal is produced... | 12/17/2002 |
| 6484388 | Sequential roll-forming process for a stator A process to perform a flaring operation on a rotating electrical device (stator) designed with a number of these spaced axially oriented splines around its perimeter. The design of the stator requires that these perimeter splines possess a flared outer e... | 11/26/2002 |
| 6305068 | Continuous horizontal strip casting installation and method for producing a coilable metal strip A continuous horizontal strip casting installation for producing a metal strip that can be coiled into a coil has a stationary draw-off unit with multiple draw-off rolls at a distance from a chill mold assigned to a furnace, a strip cutting unit which is ... | 10/23/2001 |
| 6257040 | Method for controlling a hydraulic rotary and feed drive for a cold pilger rolling mill The invention relates to a method for controlling a hydraulic rotary and feed drive for a cold pilger rolling mill for producing rolling stock, the cold pilger mill having a rolling stand that moves back and forth in the rolling direction by a crank drive... | 07/10/2001 |
| 6250125 | Method for producing iron-base dispersion-strengthened alloy tube A method of producing an iron-based dispersion-strengthened alloy tube (2-1) by utilizing a rolling machine having grooved rolls (5, 5-1) and a mandrel (9)for forming the tube (2-1) from a raw rolling tube (2). In the method, a length of contact between a... | 06/26/2001 |
| 6047585 | Apparatus for shaping workpieces An apparatus for shaping panel-shaped workpieces uses an hourglass-shaped roller as bending tool. The workpieces are clamped between a first and a second tool. The second tool has a holding-down surface. Superimposed vertical side surfaces of the tools ar... | 04/11/2000 |
| 5921128 | Method and apparatus for cold rolling tubes A method and apparatus for continuously feeding rolling stock through a cold pilger rolling mill. A rolling stock--either a continuous or so-called "endless" piece, or a plurality of serially fed, spaced-apart pieces--is initially fed into a roll stand by... | 07/13/1999 |
| 5916320 | Method for manufacturing tubes using the cold pilger rolling method Disclosed are a method and apparatus for manufacturing tubes, preferably tubes composed of high-tensile steels or special alloys, using the cold pilger rolling method with two rolling stands which can be moved backward and forward, at least in opposite di... | 06/29/1999 |
