Famous Patents
The first match was accidentally discovered in 1826 when John Walker scraped a stick with chemicals on the end against a stone floor.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7353579 | Flange restoring device and method A method and a device for straightening out irregularities in a flange by pressing a roller against a first side of the flange while supporting an opposite side thereof to preserve the angle between the flange and the part when undergoing compression loading by way ... | 04/08/2008 |
| 7334446 | Method for producing a striplike pre-material made of metal, especially a pre-material which has been profiled into regularly reoccurring sections, and device therefor This invention describes both a method and apparatus to practice a method which produces a strip-like pre-material from metal using rollers which have a roll gap in which the metal strip is discontinuously rolled in successively steps between the same two rollers wi... | 02/26/2008 |
| 7320237 | Method for measuring misalignment of continuance mill and apparatus for measuring the same While a reference means having a positional relationship to the pass-line of a continuance mill determined in advance and caliber profile (area enclosed by the groove profile of a rolling roll) formed by a rolling roll at each stand are imaged within the same visual... | 01/22/2008 |
| 7250069 | High-strength, high-toughness matrix bit bodies A new composition for forming a matrix body which includes spherical sintered tungsten carbide and an infiltration binder including one or more metals or alloys is disclosed. In some embodiments, the composition may include a Group VIIIB metal selected from one of N... | 07/31/2007 |
| 7185520 | Dynamic thickness correction The invention relates to a method and a device for correcting the thickness of a metal strip during rolling comprising a roll stand with adjusting elements to regulate the thickness of the strip and at least one take-up coiler. The object to provide a method and a d... | 03/06/2007 |
| 7114359 | Method for producing bent spring rails from an endless spring band The invention relates to a method for producing bent spring rails from an endless spring band. The method is characterized by the following steps: continuous bending of a section of spring band; cutting the bent section of spring band into a spring rail; discontinuo... | 10/03/2006 |
| 7086263 | Universal rolling stand with roll gap control A universal rolling stand with control of the space between the rolls comprises a pair of horizontal rolls and one or more vertical rolls with respective chocks, positioning housings and a guide for the chocks with adjustment tie rods (6, 7, 6′, 7′, 18, 18′... | 08/08/2006 |
| 7024899 | Roll assembly for a rolling mill A roll shaft assembly especially for a planetary cross roll rolling mill for tubing and the like has the roll shaft and mill roll connected by a conical centering arrangement and a screw, preferably coaxial therewith with the torque transfer being effected by tooth ... | 04/11/2006 |
| 6938451 | Dynamic tapered extrusion system A hard metal or non-metal member can be formed or shaped to have varying amounts of curvature and tapering by passing the member through a forming channel defined by two sets of opposed, axially displaceable rollers which can be dynamically moved horizontally and ve... | 09/06/2005 |
| 6662616 | Method and device for flexibly rolling a metal band A method and a device for flexibly rolling a metal band by guiding the metal band through a roll gap formed between a first working roll and a second working roll, and by varying the size of the roll gap in such a way that band sections with a greater ban... | 12/16/2003 |
| 6336350 | Method for the flexible rolling of a metallic strip A method for the flexible rolling of a metallic band wherein, during the rolling procedure, the metallic strip is lead through a roll gap which is formed between two working rolls and which is set so that, over the length of the metallic strip, strip sect... | 01/08/2002 |
| 6336349 | Method for the flexible rolling of a metallic strip A method for the flexible rolling of a metallic strip in which, during the rolling procedure, the metallic strip is lead through a roll gap which is formed between two working rolls, and during the rolling operation, the roll gap is deliberately changed i... | 01/08/2002 |
| 6250126 | Plate rolling mill The invention intends to always maintain a distance between a hydrostatic pressure bearing and a roll even in a transient state before and after the start of rolling, thereby sufficiently and surely preventing damage of those components upon contact with ... | 06/26/2001 |
| 6216518 | Method of adjusting position in bar steel rolling mill and roll position adjusting guidance apparatus A method of adjusting a roll position in a bar steel rolling mill includes using portions of a roll caliber, that are located at approximately symmetrical positions with respect to a rolling reduction direction, as sensing positions, and calculating the s... | 04/17/2001 |
| 6170311 | Device with a stepped adjustment for adapting the vertical position of rolls to the rolling line A device with a stepped adjustment for adapting the vertical position of the rolls of a roll stand to the rolling line, wherein the rolls are supported on both sides in chocks and arranged so as to be raisable and lowerable in roll housings, particularly ... | 01/09/2001 |
| 6094958 | Material-working machine having parallel plates housing and supporting beam The housing of a metal-working machine is comprised of a pair of parallel, vertically oriented, laterally spaced, smooth-surfaced plates that define a work zone at the upper end of the housing. Components of the machine are conveniently mounted within the... | 08/01/2000 |
| 6073474 | "C" block roll bending A work roll bending system for profile control of continuous metal strip during rolling which is especially useful for retrofitting an existing rolling mill absent such feature to provide it with roll bending capabilities. The advantage of the system is i... | 06/13/2000 |
| 6035686 | Method and installation for producing biconical wire A method and an installation for producing biconical wire, i.e., wire with repeating cylindrical and conical wire sections from a cylindrical starting material, in particular for producing helical compression springs inexpensively by using hot forming to ... | 03/14/2000 |
| 6029490 | Device for changing the vertical position of the vertical rolls in universal roll stands A device for changing the vertical position of the vertical rolls in universal roll stands for rolling girders of different heights, wherein the vertical cross section of the housing of the bearing chock is constructed asymmetrically and the vertical dist... | 02/29/2000 |
| 5975987 | Method and apparatus for knurling a workpiece, method of molding an article with such workpiece, and such molded article A method and apparatus for knurling a workpiece in which the knurl pattern has an oblique helix angle relative to the longitudinal axis of the cylindrical workpiece. Also disclosed is a method of molding a molded article with the knurled workpiece to impa... | 11/02/1999 |
| 5904058 | Decamberer Camber of a travelling wide strip is provided by a pair of opposed rollers adapted to bear on opposite wide sides of such a strip. Mutually independent means are provided to provide deforming pressure at a selected end of said opposed rollers.... | 05/18/1999 |
| 5896771 | Roll stand with a pair of roll support shafts with bearings at both ends of the shafts A pair of roll support shafts which are supported by bearings provided at both ends of the roll support shafts, wherein, between the bearings, toothed drums are mounted on the roll support shafts or the circumference of the roll support shafts is provided... | 04/27/1999 |
| 5875672 | Method and apparatus for manufacturing metallic support beams for windscreen wiper blade assemblies A method and apparatus for manufacturing metallic support beams for windscreen wiper blade assemblies, which includes a supply of metallic strip feedstock in a cold condition, the feedstock being passed in a cold condition through a pair of opposed, space... | 03/02/1999 |
| 5855133 | Rollforming apparatus for forming profile shapes The present invention provides means for automatically adjusting rollforming equipment to accommodate a range of different gauges of material such as sheet metal being formed. One rollforming roller (34) on each rollforming head (4A) is mounted on an ecce... | 01/05/1999 |
| 5855134 | Wire roll stand A wire roll stand with roll rings mounted in a cantilevered manner onto roll shafts, wherein the roll rings can be axially clamped through spacer rings against an end of the respective roll shaft. The roll shafts are adjustable by eccentric bushings mount... | 01/05/1999 |
| 5799526 | Process and plant for cold rolling with compensation for ovalization of the rolling rolls A process for the cold rolling of a metal strip between rollers of rolling stands arranged sequentially is provided, along with a plant for its implementation, wherein the process involves: analyzing, as a function of frequency, a signal from an inter-stand te... | 09/01/1998 |
| 5782177 | Electromagnetic roller arrangement A roller arrangement has a magnetic circuit that includes two rollers. The magnetic circuit consists of a cylindrical magnetic core, several poles axially distributed on the magnetic core, a cylindrical exciter and control windings arranged between these ... | 07/21/1998 |
| 5755131 | Method of and apparatus for removing camber from mult strips The invention is a method of and apparatus for removing camber from MULT strips by passing the MULT strip through a rolling mill having rolls with contacting surfaces vertically adjustable and positioned to reduce the thickness of the MULT strip from its ... | 05/26/1998 |
| 5673603 | Device for cutting advancing material webs to shape A device for cutting to shape advancing material webs, in particular made of fibrous materials, comprises a rotatingly driven shape cutting roller and a rotatingly driven counter cutting roller. The shape cutting roller has a shape cutting edge and the co... | 10/07/1997 |
| 5556273 | Combustion system for a steckle mill A combustion system for use in the steckel mill provides for the controlled mixing of combustible fluids to each furnace incorporated in the steckel mill while also harnessing at least a portion of the heat developed during the operation of the mill to in... | 09/17/1996 |
| 5546782 | Machine to sharpen bars to a point Machine to sharpen bars to a point, especially bars to be drawn, which comprises at least one sharpening assembly and at least one assembly for displacement of the bar in relation to the sharpening assembly, the sharpening assembly (31) consisting of two ... | 08/20/1996 |
| 5437089 | Method and apparatus for continuous production hot-rolled strips A method for continuous production of hot-rolled strips is used at metal works and involves continuously casting a thin slab which is stored and rolled into a strip in the form of individual portions in several runs with return into the storage zone and w... | 08/01/1995 |
| 5404738 | Method of controlling a hot strip finishing mill Continuous rolling is conducted by interposing loopers respectively between a plurality of successive stands and connecting a rear end of a preceding bar to a top end of a next bar. Roll gaps of the respective stands are each controlled by thickness contr... | 04/11/1995 |
| 5245853 | Taper rolling - direct length measurement When deforming an elongate workpiece, as by forging, rolling, or the like, it is necessary to know the exact position of the workpiece along its length with respect to the deforming device. To this end, one end of the workpiece is secured to a carriage in... | 09/21/1993 |
| 5239851 | Rolling method of multi-high rolling mill for obtaining accurate sheet crown A five-high rolling mill is disclosed which includes an upper work roll backed by an intermediate roll and a backup roll and a lower work roll backed up by a single backup roll. Control benders are provided on each of the intermediate roll and the upper a... | 08/31/1993 |
| 5035131 | Roll stand for a planetary rolling mill To substantially increase the periods of time between the changing of rolling segments and to reduce the amount of work connected therewith in a roll stand for a planetary rolling mill, chocks in which stationary support bodies having rolling segments are... | 07/30/1991 |
| 5010756 | Method of and apparatus for controlling shape of rolled material on multi-high rolling mill A method of and a device for controlling a counter of a rolled material on a multi-high rolling mill with which method and device very accurate shape control can be attained with certainty and in high responsibility. A strip shape of a rolled material in ... | 04/30/1991 |
| 4959099 | Taper rolling of metal Taper rolling apparatus including a pair of rolls (10,12) the spacing of which can be varied according to the linear movement of a workpiece clamped in a carriage assembly (26). So that the roll gap can remain at a constant mean height throughout the roll... | 09/25/1990 |
| 4936132 | Continuous hot rolling process for making thin steel strip This invention provides a continuous hot rolling process for making thin strip in which it is possible to roll strips at high rolling speeds required to keep a finisher delivery temperature equal to or higher than an Ar3 transformation temperat... | 06/26/1990 |
| 4860564 | Method and apparatus for taper rolling control for a rolling mill A method and apparatus for rolling a taper in or out of a strip during reduction by a rolling mill, rolling a first portion of the strip by employment of a gaugemeter roll gap control system using a first value for the mill stretch above the natural mill ... | 08/29/1989 |
