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| Number | Title | Issue Date |
| 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 |
| 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 |
| 7279016 | Fuel cell bipolar separator plate and current collector assembly and method of manufacture A fuel cell bipolar separator plate of variable length is formed from a sheet having a fixed width. The sheet is passed through a tool a predetermined distance and a pattern of ribs is formed on a central portion of the sheet with the tool to define a segment along ... | 10/09/2007 |
| 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 |
| 7228720 | Rotary apparatus and method A rotary apparatus having a first rotating die assembly and a second rotating die assembly arranged in juxtaposition with one another on respective first and second sides of a strip work piece movement path, and operable in unison together to perform operations on a... | 06/12/2007 |
| 7117777 | Flying punch for webs A punching station for a web includes a web transport system that operates to advance the web in a first direction at a first rate. A clamp intermittently grips a portion of the web to advance the portion in the first direction at a second rate. A punch is coupled t... | 10/10/2006 |
| 7093476 | Method for fabricating thin californium-containing radioactive source wires A method for reducing the cross-sectional diameter of a radioactive californium-containing cermet wire while simultaneously improving the wire diameter to a more nearly circular cross section. A collet fixture is used to reduce the wire diameter by controlled pressu... | 08/22/2006 |
| 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 |
| 6339947 | Rotary apparatus with moveable die A rotary apparatus (20) for rotary forming of a web workpiece (12) and having a rotatable first roll unit (32) and corresponding rotatable second roll unit (34), a first die support (46) carried by the first roll unit (32), having a leading edge (51) and ... | 01/22/2002 |
| 6192297 | Method for handling metal sheets in a working area comprising a machine tool and a robot A method for moving metal sheets of a working area by an antropomorphous robot comprises a) taking of preselected fixed input data that identify the geometry in the space of components of a working island; b) taking, comprising from a machine tool, presel... | 02/20/2001 |
| 6018973 | Rotary forming apparatus and method of rotary forming A rotary forming apparatus (10) having a pair of lower and upper die carrier units (14, 16) each of which is rotatable on opposite sides of a workpiece (W), and having a plurality of die supports (22, 24) swingably mounted on each of the die carriers, and... | 02/01/2000 |
| 5983693 | Rotary press with cut off apparatus A rotary apparatus (20) for rotary forming of a web workpiece (12) and having a rotatable first roll unit (32) and corresponding rotatable second roll unit (34), a first die support (46) carried by the first roll unit (32), having a leading edge (51) and ... | 11/16/1999 |
| 5791185 | Rotary apparatus with moveable die A rotary apparatus (20) for rotary forming of a web workpiece (12) and having a rotatable first roll unit (32) and corresponding rotatable second roll unit (34), a first die support (46) carried by the first roll unit (32), having a leading edge (51) and ... | 08/11/1998 |
| 5689989 | Method for the zigzag-like folding of a strip-like foil The method for the zigzag-like folding of a strip-like foil includes the following steps in an advantageous embodiment: 1. prepleating, whereby a zigzag-like or wave-shaped folding is effected in which the folded edges are formed in cross-section as arcs with ... | 11/25/1997 |
| 5673582 | Planetary mill A planetary mill having two stationary backing bodies, located one above the other in chocks in a roll stand. Two synchronously rotary-driven cage rings are coaxially mounted on the backing bodies so as to be separated from one another. The case rings rot... | 10/07/1997 |
| 5561998 | Rotary forming apparatus and method A rotary apparatus (10) for forming materials such as sheet metal has upper and lower rotary members (12,14) rotating in unison on opposite sides of a moving strip of material, at least one die support (30,32) movably supported on each rotary member for c... | 10/08/1996 |
| 5546781 | Process for the production of a toothed rack via cold forming, the rack produced thereby, and an apparatus for practicing the process Process for the production of a toothed rack via cold forming, the rack produced thereby, and an apparatus for practicing the process. The cold formed rack workpiece shows multiple traces of cold forming in the toothing direction. During the production pr... | 08/20/1996 |
| 5287714 | Roll stand for a planetary rolling mill A roll stand for a planetary rolling mill having a housing, and two stationary support members mounted in chocks, with rolling segments and intermediate and work rolls mounted in rotationally driven cages. The support members have a plurality of rolling s... | 02/22/1994 |
| 5187965 | Roll stand for a planetary rolling mill The present invention relates to a roll stand for a planetary rolling mill having roll housings, stationary support bodies which are mounted on insert pieces, which have at least one rolling segment inserted therein, with hardened segment inserts, and int... | 02/23/1993 |
| 5170652 | Planetary rolling mill A roll stand for a planetary rolling mill includes two stationary opposed support bodies having an axis and forming a shaping zone there between; a plurality of intermediate rolls and a plurality of working rolls mounted for rotation around the support bo... | 12/15/1992 |
| 5133205 | System and process for forming thin flat hot rolled steel strip A continuous process and system for making flat rolled steel or ferrous metal strip having a minimum thickness sufficient to allow substantially direct product manufacture therefrom, wherein a Platzer planetary mill continuously receives an as-continuousl... | 07/28/1992 |
| 5109583 | Method of manufacturing barbed tape A barbed tape with a longitudinally extending strengthening groove is formed by pushing a strip of barbed tape to and through forming rolls which cooperate with the tape and a wire mandrel. The wire mandrel includes a continuous loop of wire rope which is... | 05/05/1992 |
| 5040397 | Rotary apparatus and method A rotary forming apparatus for forming or cutting strip material, having rotatable upper and lower roll units, the units being connected for synchronous rotation, each of the units having a carrier member with at least one recess extending parallel to its... | 08/20/1991 |
| 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 |
| 4920775 | Apparatus for making barbed tape An apparatus and process is provided for forming a helical barbed tape. The process first involves supplying rolled steel which is passed to an apparatus for blanking barbs and cutting the steel into strips. The strips are mounted on individual cassettes.... | 05/01/1990 |
| 4838066 | Process and a device for the production of grooves on a wall of revolution The process according to the invention relates to the production of grooves such as helical threads on the wall of tubes composed of ductile or plastic materials without removal of matter. It involves using a knurling tool (11) of radius (R1) which ... | 06/13/1989 |
| 4802356 | Apparatus of processing continuously cast slabs A method and apparatus of processing a continuously cast slab to prevent the formation of surface cracks by applying plastic strains to the surface layer of the slab in which a process of solidification is taking place. The method comprises pressing a pro... | 02/07/1989 |
| 4787598 | Apparatus for the continuous production of pipes with cross-profiled walls The invention relates to an apparatus for the continuous production of pipes with cross-profiled walls from a pipe strand of thermoplastic plastic emerging in still plastic state from an extrusion nozzle.... | 11/29/1988 |
| 4732028 | Rotary apparatus A rotary cutting and forming apparatus for strip material, having rotatable upper and lower roll units, the units being connected for synchronous rotation, each of the units having a carrier member with at least one recess extending parallel to its centra... | 03/22/1988 |
| 4429559 | Strip processing apparatus A recirculating strip processing apparatus is described comprising a recirculating stripper chain, a recirculating tool chain, a recirculating carrier follower chain and a recirculating die chain in a removable cassette for continuous processing of integr... | 02/07/1984 |
| 4409813 | Method and apparatus for corrugating strips The invention relates to a method and a machine for transversely corrugating a continuous strip of metallic foil. The product foil comprises a succession of alternately disposed corrugations, each defining in cross section, a major segment of a circle. Th... | 10/18/1983 |
| 4407056 | Method and apparatus for manufacturing metal sections In making metal sections, starting material having a quadrangular cross-section is hot-forged into a blank resembling the desired product in cross-section, and the length of the piece is divided into sections of a given length. Then, the blank is hot-roll... | 10/04/1983 |
| 4388818 | Method and apparatus for fabricating precision teeth An approximately shaped or formed gear is fabricated in any desired way and is then corrected by means of substantially ring-shaped rolls or rolling tools performing striking or hammering operations in the tooth gaps of such gear. The rolls rotate in a pl... | 06/21/1983 |
| 4052873 | Apparatus for continuous pressing of bolts, screw blanks or similar parts Apparatus for shearing blanks from elongated workpieces and for pressing such blanks into screw blanks, bolts or the like in a continuous operation comprises a plurality of preferably cylindrical rotary elements, rotatable about parallel axes in such a ma... | 10/11/1977 |
| 4045990 | Endless reinforcement An endless reinforcement comprising a unitary strip positioned across the width of the reinforcement from one side to the other at an angle to the edges of the reinforcement, the unitary strip including a multiplicity of continuous filaments surrounded an... | 09/06/1977 |
| 4027517 | Method and apparatus for embossing sheet metal strip and sheet metal panel This specification discloses strip sheet metal panels formed with transverse indentations and longitudinal formations formed therein, with end portions at each end of said panels being free of said transverse indentations; And a method of cold rolling str... | 06/07/1977 |
| 4025599 | Cuspated sheet forming A continuous process of forming a sheet of thermoplastic material by sequentially pressing against one face of the hot sheet of material the cold tips of projections set in and extending normally from a first series of separately moveable combs and sequen... | 05/24/1977 |
| 4019358 | Rolling mill In a rolling mill for a metal workpiece and comprising a pair of rotary work rolls for reducing the thickness of the workpiece when it is fed therebetween, a carrier for at least one of the work rolls comprises a cam surface which can roll on a counterfac... | 04/26/1977 |
| 4012932 | Machine for manufacturing herringbone-pleated structures A machine for manufacturing herringbone-pleated structures of a type particularly suitable for use in cylindrical or flat filter elements. The machine includes consecutive feeding forming and bunching components by which a continuous band of flat sheet ma... | 03/22/1977 |
