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| Number | Title | Issue Date |
| 7413780 | High strength galvannealed steel sheet excellent in workability and a method of production of the same Galvannealed steel sheet simultaneously able to achieve excellent workability and high strength and a method of production of the same are provided as an objective, in particular high strength galvannealed steel sheet excellent in workability, comprising high streng... | 08/19/2008 |
| 7367210 | Punch press and deburring device for the punch press The present invention provides a deburring device for a punch press which can remove burrs produced along a slot or a cut portion formed in a plate material by punching or cutting using a punch press so that the removal is carried out as a process with the same punc... | 05/06/2008 |
| 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 |
| 7267201 | Emergency brake device of elevator An emergency brake apparatus for an elevator system is installed on an elevator cage or a balance weight of the elevator system and includes a grip member with slant surfaces and a pressing surface sandwiching a guide rail, a pressing member disposed movably between... | 09/11/2007 |
| 7251890 | Method for producing wheel pans A method for producing a wheel pan includes cold-rolling a rectangular metal strip of a given uniform thickness by conical rolls into a semicircular ring, such that the thickness reduction on the outer edge of the curved strip is at least 20%, and the circumference ... | 08/07/2007 |
| 7200935 | Work roll Improved work roll, particularly for use in closed gap rolling, has a composite structure comprising a cylindrical outer layer (14) made of steel, and providing the work surface of the roll, separated from a steel core (12) by an intermediate layer ( | 04/10/2007 |
| 7150477 | Rotary joints Rotary joints are provided, to allow fluid to flow from a stationary member to a rotating member. The rotary joints include a housing, configured to fit over the rotating member, a rotatable coupling disposed within the housing, configured to be fixedly attached to ... | 12/19/2006 |
| 7093355 | Method and device for producing flat metal ribbon cables A round wire is cold formed in a first pair of forming rolls to produce a flat metal ribbon cable having a specified width, followed by cold forming the flat metal ribbon cable in a second pair of forming rolls to produce a flat metal ribbon cable having a specified... | 08/22/2006 |
| 7032421 | Knurling tool A knurling tool is provided having a tool head which carries at least one knurling wheel and which is mounted adjustably on a shaft, wherein the tool head is mounted on the shaft linearly displaceably transversely with respect to the axis of the shaft, characterized... | 04/25/2006 |
| 7029232 | Abradable seals A sealing element for a turbine of a gas turbine engine includes a radially inner surface region provided with an integrally formed seal structure comprising a plurality of radially inwardly projecting walls. The walls may be abradable and may define cells for recei... | 04/18/2006 |
| 7013547 | Method and device for the production of curved spring strip sections A method and a device for the production of curved spring strip sections. A spring strip runs through a bending unit formed from three separate support points and a reverse bending unit, arranged in series, and formed from a fourth support point. Bent and reverse-be... | 03/21/2006 |
| 7000442 | Rotary die blade member bending method, and rotary die blade member binding device Method and apparatus for making a rotary die blade from a straight blade blank to be conformable to the contour of the rotary die block include inserting a blade blank between a first press face of a first presser and a second press face of a second presser; and com... | 02/21/2006 |
| 6983635 | Coin press A coin press (10) includes a die (20) and an anvil (22) that abut and counter-rotate to nip and press a coin. The coin press (10) has a timing device (80) with a coin slot (84) and a gate (92) rotatable about a gate a... | 01/10/2006 |
| 6976617 | Uninterrupted continuous rolling of bar and rod products Discrete billets are rolled through a plurality of roll stands arranged along a rolling mill pass line to produce successive product lengths having reduced cross sections and front and tail ends. At a selected location along the pass line, the tail end of each produ... | 12/20/2005 |
| 6959575 | Kurling tool A method and apparatus for knurling a workpiece in which the knurl pattern includes grooves of at least two different configurations. The apparatus includes a knurl wheel holder that allows angular rotation of the knurl wheel about the holder longitudinal axis while... | 11/01/2005 |
| 6959805 | Device for driving material to be rolled on vertical rolling mill cages A guide device on a vertical roll rolling mill frame (WG) which has vertical guide plates (FP) for the rolled product on both sides of the vertical roll pair (VW) above the rollers (RR) of the roller conveyor for feeding the rolled product 2 and removing the ... | 11/01/2005 |
| 6942763 | Textured-metastable aluminum alloy sputter targets and method of manufacture An aluminum alloy sputter target having a sputter target face for sputtering the sputter target is disclosed. The sputter target face has a textured-metastable grain structure. The textured-metastable grain structure has a grain orientation ratio of at least 35 perc... | 09/13/2005 |
| 6923033 | Roller system for flattening irregularly shaped, bent pieces of scrap sheet metal A roller system for flattening irregularly shaped pieces of scrap sheet metal comprises a pair of parallel, horizontally arranged large rollers forming a downwardly converging nip between them. Each roller is formed of curved steel sheets bent to form a cylindrical ... | 08/02/2005 |
| 6910415 | Printing unit cylinder for a rotary printing machine A printing unit cylinder is subject to only low deformation in the event of operationally induced increases in the temperature of the printing unit. At least the barrel of the body of the printing unit cylinder is produced from a metallic material with a linear coef... | 06/28/2005 |
| 6790387 | Process of producing diffraction gratings on the surface of articles A process of producing an article having a surface provided with an optical diffraction grating such that the surface generates visible color when illuminated with diffuse white light. The process involves deforming a starting material to produce the article having ... | 09/14/2004 |
| 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 |
| 6613174 | Process for the manufacture of an acoustically effective foil stack for a vehicle heat shield The method and the device for manufacturing an acoustically effective foil stack (9) made of embossed foil webs (5e, 5f, 5g, 5h) is characterised by the fact that at least two foil webs lying over one another (5a, 5b, 5c, 5d) are embossed at the same time... | 09/02/2003 |
| 6453712 | Method for reducing crop losses during ingot rolling A method and apparatus for reducing crop losses during slab and ingot rolling concerns the formation of a slab ingot having a specially configured or shaped butt end and optionally a head end as well. A special shape is formed by machining, forging or pre... | 09/24/2002 |
| 6329081 | Stainless steel sheet material and manufacturing method thereof There is provided a stainless steel sheet material, used for a semiconductor manufacturing device, to which it difficult for fine dust to be attached and from the surface of which the attaching dust can be easily washed away. Also, there is provided a met... | 12/11/2001 |
| 6324978 | Printing plate substrate and method of making a printing plate substrate or an offset printing plate The invention relates to a printing plate substrate made of a rolled and embossed aluminum strip, wherein the surface has depressions with an average diameter of | 12/04/2001 |
| 6230534 | Process for manufacturing a cold rolled stainless steel strip having a high gloss A process for manufacturing a cold rolled stainless steel strip of high gloss with a high production efficiency by employing a high rolling speed. Mirror-finished work rolls having a Young's modulus exceeding 54,000 kgf/mm2 and a centerline ave... | 05/15/2001 |
| 6202462 | Method of forming noise-damping material with ultra-thin viscoelastic layer A noise-damping composite is formed by providing a laminate of two metal layers separated by a much thinner viscoelastic layer which has an initial thickness of at least 1 mil., and then cold rolling the laminate to proportionally permanently reduce the t... | 03/20/2001 |
| 6187455 | Decorative roll-patterned strip and process of making same A decorative roll-patterned metal strip or sheet, preferably aluminium strip or sheet, having: a thickness of about 0.05-1.0 mm, preferably about 0.1-0.8 mm, with a surface having a plurality of indentations of a depth of about 0.001-0.05 mm, preferably a... | 02/13/2001 |
| 6183879 | Rigid thin sheet material and method of making it Lightweight flexure-resistant thin metal sheet is produced by passing flexible thin metal sheet between rolls having defined teeth, the teeth having radiused corners so that rows of projections are formed on both faces of the sheet without damage to the s... | 02/06/2001 |
| 6089068 | Method of manufacturing a shaft having a fluid flow passage A method of manufacturing a shaft having below a surface thereof a flow passage, through which a fluid can flow, includes a preliminary step of forming in a surface of a columnar-shaped base material grooves having a substantially U-shaped cross section, ... | 07/18/2000 |
| 6055839 | Pressing of coins, tokens, and like items A machine and method for producing pressed items from coins, tokens, and like items. The machine includes multiple operating stations from where multiple operators can activate the machine; a press adapted to press coins, tokens, and like items delivered ... | 05/02/2000 |
| 6035666 | Apparatus for roll forming glass sheets A forming station (26) for roll forming a heated glass sheet include a forming conveyor (62) including forming rolls (66) that are moved upwardly between horizontal rolls (46) of a horizontal conveyor (44) on opposite sides of a centerline (C/L) of the ho... | 03/14/2000 |
| 5799527 | Method of producing a stainless steel sheet having excellent surface brightness A method of producing a stainless steel produces steel sheets having excellent surface brightness. The method includes performing a cold rolling operation using a work roll having a Young's modulus between 25,000 to 70,000 kg/mm2 in one or more... | 09/01/1998 |
| 5699693 | Widthwise compressing machine and method using vibrations to reduce material width A widthwise-compressing machine for applying a compression force through press tools to a material to reduce a width of the material while applying vibrations to said material to forcibly vibrate said material has a compression unit for producing a compre... | 12/23/1997 |
| 5682783 | Ceramic tubemill roll assembly A roll assembly suitable for use in the production of thin-wall heat exchanger tubes using a high-frequency induction welding tubemill. The roll assembly includes a roll portion that has an arcuate precision profile that defines one-half of the desired cr... | 11/04/1997 |
| 5613390 | Corner reduction device equipped with corner rolls, control device thereof, and method of rolling by using these devices In a corner reduction device for reducing side corners of a slab with corner rolls, a pair of upper and lower corner rolls are mounted inside a unitary unit frame, and a corner roll unit housing the unitary frame which is movable in the direction of width... | 03/25/1997 |
| 5611128 | Battery grids, method and apparatus A continuous cast positive grid of lead having substantially improved corrosion resistance and decreased growth in a positive plate of a lead-acid battery and a continuous cast negative grid of lead having substantially increased tensile strength for a le... | 03/18/1997 |
| 5508119 | Enhanced work roll surface texture for cold and hot rolling of aluminum and its alloys A method of making a strip product having a surface that is both bright and clean after being rolled by work rolls in a roll stand. The work rolls are polished to remove grind lines from the roll surfaces, and the roll surfaces are provided with minute, o... | 04/16/1996 |
| 5473929 | Offset tool A tool with socket means for connecting the tool to an ordinary ratchet wrench or the like. The tool includes an offset head portion having socket means, the head portion located in the rearward end for attaching the tool to a ratchet wrench or the like. ... | 12/12/1995 |
| 5351516 | Rail repair device An adjustable elevator rail repair device (14) is provided with a means for forcing raised damaged areas (18) of an elevator rail (10) back into the corresponding depressions (20) of the rail surface (9). The forcing means comprises a roller (24) rotatabl... | 10/04/1994 |
