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| Number | Title | Issue Date |
| 7624609 | Roll embossing of discrete features A cold rolling process for impressing a pattern on a surface of a sheet metal article involves passing the sheet article through a pair of rolls and engaging a patterning feature with isolated areas of a surface of the sheet article, at a localized pressure to plast... | 12/01/2009 |
| 7421873 | Rolling apparatus and method of making product of miscellaneous cross section with use of same A rolling apparatus including a first work roll and a second work roll cooperative with the first work roll for rolling a metal blank plate to manufacture a metal product of miscellaneous cross section including a plate portion having one side in the form of a flat ... | 09/09/2008 |
| 7363791 | Rotary stamping apparatus and method of forming sheet metal A rotary stamping apparatus for forming moving sheet metal and having a die assembly moveable forward and backward along a linear path, with upper and lower dies on respective sides of the sheet metal, the dies being closeable on the sheet metal for forming, and, a ... | 04/29/2008 |
| 7353681 | Roll embossing of discrete features A cold rolling process for impressing a pattern on a surface of a sheet metal article involves passing the sheet article through a pair of rolls and engaging a patterning feature with isolated areas of a surface of the sheet article, at a localized pressure to plast... | 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 |
| 7293445 | Sheet processing apparatus, method of use, and plastically deformed sheet An apparatus for plastically deforming a work piece. The apparatus comprises at least two cylindrical guide rolls rotatable in a first direction, a bendable strip having a portion of at least one surface in communication with a portion of an outer circumference of e... | 11/13/2007 |
| 7267166 | Grooved tubes for heat exchangers that use a single-phase fluid Grooved metal tubes, with a groove-bottom thickness Tf and outside diameter De, internally grooved with N helical ribs having an apex angle α, height H, base width LN, and helix angle β, two consecutive ribs being separated by a groove, gener... | 09/11/2007 |
| 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 |
| 7191631 | Sheet metal bending brake with improved hinge A sheet metal bending brake having a frame with a sheet metal support surface. A clamping jaw is movable relative to the frame support surface to clamp the sheet metal between the clamping jaw and the frame. The clamping jaw has a linear front edge. An elongated ben... | 03/20/2007 |
| 7192024 | Sheet material processing A feed mechanism feeds sheet material sequentially on demand to a take-up mechanism of processing machinery. The feed mechanism has a feed table with a gate. Sheets may be stacked against the gate, which allows only the lowermost sheet to pass therebeneath. Rollers ... | 03/20/2007 |
| 7047782 | Method for roll forming, capable of preventing wrinkles and device therefor A die roll 3 comprises a core part 3a which is formed of an elastic material and faces a punch part 2a of a punch roll 2. The core part 3a presses a bottom portion 4b of a drawn portion 4 | 05/23/2006 |
| 7024752 | Crimping press with contact feed A crimping press has a tool receptacle arranged at a lower end of a pressing slider provided with a force-sensing device. The forces arising during the crimping operation are transmitted from the supporting surfaces of an upper tool to several points on the force-se... | 04/11/2006 |
| 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 |
| 6739167 | Work roll for use in rolling apparatus A work roll for use in rolling apparatus for producing from a metal blank sheet articles having a deformed cross section and comprising, for example, a plate portion, and a plurality of upright walls formed on one surface of the plate portion integrally therewith an... | 05/25/2004 |
| 6654996 | Tube remover and method for axially removing a metal tube A tube remover for extracting a tube from an opening in which the tube is mounted in a wall. The remover includes a nipper roll and an anvil roll, each of which is provided with a plurality of teeth formed in a radially outward facing surface of each resp... | 12/02/2003 |
| 6604457 | Process and apparatus for embossing graphite articles Apparatus and methods are provided for the embossing of a sheet of flexible graphite material between a pair of embossing rollers. The embossing rollers include a primary embossing roller and a backup roller. The primary embossing roller has an embossing ... | 08/12/2003 |
| 6389862 | Method for debasing coins, devices suitable for carrying out such a method as well as debased coins A method for debasing coins, wherein each coin is mechanically deformed by feeding the coin between at least two rolls (6, 7) or assemblies rotating in opposite directions. The coins are deformed into a corrugated shape, flattened out or shredded. The dev... | 05/21/2002 |
| 6340050 | Internally grooved heat exchanger pipe and metal bar working roll for internally grooved heat exchanger pipes An internally-grooved heat exchanger tube according to the present invention is structured such that the internal surface is divided into a plurality of continuous areas (W1, W2) parallel to the axial direction (L) of the tube, a large number of fins (10,... | 01/22/2002 |
| 6116095 | Apparatus and method for measuring air flow from a duct system A method and apparatus for selectively predicting the air flows from a duct system that would be produced by environment conditioning plants. The apparatus includes a measurement duct connected to a blower. A restrictor plate is movably mounted over an in... | 09/12/2000 |
| 6089071 | Method for controlling press working by means of working wheels A method for controlling press working by means of working wheels is disclosed which is capable of solving problems in conventional punch press working by means of working wheels. The method comprises: in punch press working by means of working wheels, mo... | 07/18/2000 |
| 5979050 | Air preheater heat transfer elements and method of manufacture Heat transfer elements for rotary regenerative heat exchangers are formed with spacing ridges or notches having flow-disrupting indentations in the peaks of the notches formed at selected intervals to project into the flow channels. These projections inte... | 11/09/1999 |
| 5950475 | Mechanical coin feed for a souvenir penny press A coin feed for a souvenir coin elongation machine having a housing, a coin slot formed in the top of the housing, a pair of embossing rolls having a predetermined number (N) of embossing plates spaced equally around the outer circumferential surface of a... | 09/14/1999 |
| 5934128 | Heat transfer tube having grooved inner surface The present invention has the object of increasing the heat exchanging performance of heat transfer tubes having grooved inner surfaces. In order to achieve this object, the heat transfer tubes having grooved inner surfaces according to the present invent... | 08/10/1999 |
| 5644940 | Portable sheet metal work-roll apparatus A portable slitter for selectively roll slitting rib forming or perforating sheet metal workpieces and having a beam-type frame, a pair of spaced thin walled and light weight rotary torque tube roll shafts mounted in the frame and supporting the work roll... | 07/08/1997 |
| 5577313 | Method and apparatus for joining deformable sheet stock A method of joining first and second sheets of deformable material by providing a first sheet having oppositely facing first and second surfaces, providing a second sheet having oppositely facing third and fourth surfaces, placing the second surface on th... | 11/26/1996 |
| 5483811 | Segmented anvil roller for refining the domain structure of electrical steels A method and apparatus are provided for refining the domain wall spacing of a grain-oriented silicon steel sheet by mechanical scribing using a segmented anvil roller and a scribing roll. The segments of the anvil roll are arranged side by side along an a... | 01/16/1996 |
| 5471731 | Method of making low-fat non-stick frying device An improved one-sided embossing process for manufacturing low-fat non-stick frying cookware is provided. The process provides a textured cooking surface free of sharp edges which increases the useful life of a non,stick coating applied thereto. The emboss... | 12/05/1995 |
| 5463889 | Segmented scribing roller for refining the domain structure of electrical steels by local mechanical deformation A method and apparatus are provided for refining the domain wall spacing of a grain-oriented silicon steel sheet by mechanical scribing using a solid anvil roll and a scribing roller including scribing segments arranged side by side along an arbor. The ar... | 11/07/1995 |
| 5408856 | Apparatus for domain refining electrical steels by local mechanical deformation with multiple scribing rolls A method and apparatus are provided for refining the domain wall spacing of a grain-oriented silicon steel strip by mechanical scribing and by employing more than one row of staggered small diameter scribing rolls arranged to scribe a different portion of... | 04/25/1995 |
| 5354581 | Surface treatment of sheet- or plate-like blanks One side of a sheet- or plate-like bank of metallic, plastic and/or other material is provided with at least one set of parallel grooves prior to being provided with an array of pyramidal and/or conical depressions. The grooves can be formed by brushes or... | 10/11/1994 |
| 5115660 | Method for making band plates deformed in section A method for making sectionally deformed band plate feeds by cold-rolling metal band plate feeds between work rolls wherein at least one of the work rolls has a barrel provided with a circumferential groove, a plurality of metal band plate feeds with subs... | 05/26/1992 |
| 5088309 | Rotary punch Apparatus for making different residential and commercial building siding of different widths includes a series of roller stations with selective vertical roller positioning adjustments and selective axial lateral roller portion position adjustments. An o... | 02/18/1992 |
| 5085411 | Apparatus for processing grain-oriented electrical steel strip An apparatus for processing grain-oriented electrical steel strip has a groove-scribing unit, which comprises a groove-scribing roll mounted above a pressing roll, disposed on the entry side of an insulation coating unit. A bridle roll is provided above t... | 02/04/1992 |
| 5080326 | Method and apparatus for refining the domain structure of electrical steels by local hot deformation and product thereof A method is provided for improving the electrical characteristics of grain-oriented silicon steel sheet by heating the steel to temperatures above 1000° F. and then deforming grooves to refine the magnetic domains, optionally, post heat treating to form ... | 01/14/1992 |
| 4913910 | Apparatus for forming laminate into a predetermined configuration Apparatus for forming elongate laminate into a predetermined configuration having a substantially uniform cross-sectional shape in the axial direction, including a plurality of roller pairs having complementary transverse peripheral profiles, plate member... | 04/03/1990 |
| 4856313 | Method of controlling strip crown in planetary rolling Method of controlling a strip crown in a planetary mill line, comprising the steps of rolling a slab by using a shaped feeding roll or rolls before passing between planetary rolls to shape a slab profile in the direction of the width of the slab having a ... | 08/15/1989 |
| 4835850 | Apparatus for joining pieces of sheet metal An apparatus for joining two or more sheets by means of drawn and extruded material portions comprising a punch, a die and an anvil. The punch is driven to first cooperate with the die in a drawing step, then to transport the work piece to the anvil and t... | 06/06/1989 |
| 4742706 | Strain imparting device A device for imparting strain to a steel sheet by which deformed regions spaced at a desired distance and having a minute linear shape are continuously formed, comprising: a strain imparting roll having projected portions on the surface thereof; a press r... | 05/10/1988 |
| 4711113 | Apparatus for reducing core losses of grain-oriented silicon steel An apparatus for scribing grain-oriented silicon steel to improve the core loss thereof is provided. The method comprises passing the final gauge steel after cold rolling through a roll pass defined by an anvil roll and a scribing roll having a surface wi... | 12/08/1987 |
| 4627831 | Single facer A single facer including a main frame installed on a base for supporting a paste application roll, a pressure roll and so on, a movable frame fixed on or removably supported on the main frame for rotatably supporting upper and lower corrugated rolls in me... | 12/09/1986 |
