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| Number | Title | Issue Date |
| 8117879 | Curved building panel, building structure, panel curving system and methods for making curved building panels A building panel formed from sheet material extends in a longitudinal direction along its length and includes a curved center portion in cross section, a pair of side portions extending from the curved center portion, and a pair of connecting portions extending from... | 02/21/2012 |
| 7360386 | Sweep unit assembly The subject invention discloses a sweep unit assembly having a series of stations defining a path for an elongated article. A cradle is coupled to each of the stations. The stations are movable to introduce a first curve into the path and the article and each of the... | 04/22/2008 |
| 7287407 | Device and method for forming a flanged ring A is adapted to form a flanged ring including an elongated curved extension from an elongated straight flange with an elongated base and an elongated protrusion extending from the elongated base. The device comprises a first pair of opposed surfaces adapted to compr... | 10/30/2007 |
| 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 |
| 7076979 | Method and device for producing curved lengths of spring band steel In a method and a device for producing curved lengths of spring band steel in order to produce precisely toleranced, dimensionally stable bending radii, the spring band steel (10) pass through a bending unit (20), which is comprised of three support po... | 07/18/2006 |
| 7065999 | Bending roll apparatus This invention provides a bending roll apparatus capable of preventing barrel-like deformation of a pipe occurring during a roll bending work and of manufacturing a small diameter elongated pipe. In an apparatus for manufacturing a pipe by pushing rolls to a core ro... | 06/27/2006 |
| 7065998 | Control element adapted to prevent an external-flange angle iron from being twisted during its bending A control element (1) adapted to prevent an external-flange angle iron from being twisted during its bending is applied to a variable-radius bending machine, on which an angle iron (10) is worked by deformation by at least two couples of lower co-axial... | 06/27/2006 |
| 6755066 | Bending device for bending plastically deformable strip material A bending device for bending plastically deformable strip material. The reverse bending that is required for workpieces with narrow processing tolerances in particular takes place independently of the actual bending. This increases the processing precision of the wo... | 06/29/2004 |
| 6189354 | Method and modular-multistation device for folding profiles The invention relates to a method and multistation device for folding profiles. The folding stations (1, 11, 15, 16, 17) required are modules mounted interchangeable and adjustable on a common machine body (2), which permits quick and simple adaption to t... | 02/20/2001 |
| 6092407 | Ring bending machine The invention relates to a ring bending machine for pipes and metal profile rods comprising two supporting shafts supported in spaced relation to one another in a carrier plate and rotatably driven, and a pressing shaft arranged centrically with respect t... | 07/25/2000 |
| 5685186 | Base curve bender An eyewinder system 10 has stations 100-108 for straightening, bending, measuring and transporting a wire 11 to form an eyewire 109. A controller 120 controls each station. Using information from tension and length measuring stations 104, 105, the control... | 11/11/1997 |
| 5592844 | Process and apparatus for rounding sheet-metal blanks Sheet-metal blanks are fed in succession one immediately after another to a rounding apparatus in which they are plastically deformed into a curve in a rounding mechanism and are given a desired constant bending radius. The portion of the blank initially ... | 01/14/1997 |
| 5431036 | Needle curving apparatus An apparatus for curving a needle is provided which comprises at least two generally cylindrical members rotatably connected to a frame. At least one anvil shaft is positioned substantially between the cylindrical members and is rotatably connected to the... | 07/11/1995 |
| 5431035 | Hydraulic pipe bender of large dimension This invention provides a hydraulic pipe bender of large dimension, comprising a frame, roller group, gear group, hydraulic mechanism, clutch, lifting mechanism, guiding mechanism, feeding mechanism, and bending mechanism. A guiding mould of the guiding m... | 07/11/1995 |
| 5243844 | Process for producing curved sections in hollow profile strips In order to curve a hollow profile strip (53), especially a hollow profile strip (53) from which a spacer frame for an insulating glass pane is to be produced, the hollow profile strip (53) is conducted continuously for an exactly defined length, held lat... | 09/14/1993 |
| 5218850 | Roll bending machine A roll bending machine for bending plates or iron sheets comprising an upper roll for dragging the plate, a central gripping roll and lateral bending rolls beneath the upper roll, wherein the flexure of each roll of the bending machine is opposed by a lon... | 06/15/1993 |
| 5161401 | Apparatus for producing bent sections in hollow profile strips In order to bend a hollow profile strip (53), especially a hollow profile strip (53) from which a spacer frame for an insulating glass pane is to be produced, the hollow profile strip (53) is conducted continuously for an exactly defined length, held late... | 11/10/1992 |
| 4845971 | Strap winding disposal device A strap coiling mechanism comprising a driven roller one having a serrated peripheral surface, a pinch roller for rotatably mounted at one extremity of a pivoted crank lever 8, said pinch roller being biassed towards the driven roller 1 by means of a comp... | 07/11/1989 |
| 4811581 | Apparatus for preforming a substantially flat blank of an open clamp A method and apparatus for preforming a substantially flat blank of an open clamp adapted to be mechanically interconnected near the free ends thereof into a circular clamp having a configuration at least approximately the configuration of the clamp when ... | 03/14/1989 |
| 4726210 | Method and apparatus for making can bodies from sheets Plane, rectangular sheets (10) are moved through between a driven bending roll (32) and a plurality of back-up rolls (34) and are bent round the bending roll (32) by these rolls and a plurality of pressure rolls (52, 56) disposed behind the bending roll (... | 02/23/1988 |
| 4633698 | Method for preforming a substantially flat blank of an open clamp A method and apparatus for preforming a substantially flat blank of an open clamp adapted to be mechanically interconnected near the free ends thereof into a circular clamp having a configuration at least approximately the configuration of the clamp when ... | 01/06/1987 |
| 4549422 | Cup and roll machine A roll (10) of metal lagging is loaded onto a loading rack (14). One end of lagging (8) is drawn upwardly and away from roll (10) by a feed drive roller (38) paired with a pressure roller (36). Before it reaches these rollers (36, 38), lagging (8) is pull... | 10/29/1985 |
| 4530226 | Sweep-forming apparatus An apparatus and associated method is disclosed for introducing a curvature or sweep into a preferably previously-formed elongated article. The elongated article is substantially constrained, both laterally and transversely, as it moves longitudinally thr... | 07/23/1985 |
| 4491004 | Apparatus for manufacturing a metal pipe The invention relates to an apparatus for manufacturing a metal pipe. At present, accurately measured, thick-walled pipes to be used as rolls must be manufactured in a plurality of working steps. The manufacture of pipes of accurate diameters is complicat... | 01/01/1985 |
| 4476194 | Contour forming conical shapes A truncated conical segment is made by the steps of longitudinally welding two pieces of metal, then contour rolling the weldment to preferentially reduce one of the pieces of the weldment more than the other. This provides a skewed trapezoid shape which ... | 10/09/1984 |
| 4304114 | Process of rolling automobile rims The invention relates to a method of rolling tire rim blanks from flat metal strips obtained by unwinding strip material from a coil which is cut into strips of desired lengths which are then rolled into a circular shape by anvil rolls cooperating with bo... | 12/08/1981 |
| 4294098 | Apparatus for manufacturing steel spring leaves The present invention relates to an apparatus for manufacturing steel spring leaves. The apparatus incorporates successively arranged entry guide rollers with an inductor in-between, bending rollers, a cooler and exit guide rollers. An additional inductor... | 10/13/1981 |
| 4266417 | Steel flanged wheel rims for motorized bicycles or two-wheeled vehicles and a process for producing the rims A steel flanged wheel rim includes a pair of hollow ears extending radially and outwardly at the side edges of the rim, a semi-circular recess between the ears and a flange extending radially and inwardly from the center of the recess. The steel flanged w... | 05/12/1981 |
| 4249406 | Line pipe forming apparatus and method A machine and method for forming line pipe is disclosed wherein small diameter roll elements not exceeding five times the thickness of the blank form a tube. The roll elements positioned in a pyramid roll assembly are dynamically adjustable toward and awa... | 02/10/1981 |
| 4228672 | Rotary notcher and former An apparatus for producing shaped metal objects such as collars for ventillating systems. The apparatus includes drive means for advancing a flat metal sheet past a rotary tool whereby notches are formed along one side of the sheet. The tool is provided w... | 10/21/1980 |
| 4201074 | Submersible pipe installation systems In general, the present invention provides processes and apparatus for bending and straightening, or otherwise installing marine pipelines at underwater installations, and includes systems in which marine pipelines are installed at water depths to 250 fee... | 05/06/1980 |
| 4195509 | Device for bending ring segment-shaped plate blanks into conically shaped parts A device for bending ring segment-shaped plate blanks into conically shaped parts includes a pair of roll stands, a top roller, or a centrally positioned pair of top rollers supported between the roll stands, and a pair of side rollers positioned on eithe... | 04/01/1980 |
| 4151733 | Method of producing thrust washers A method of producing thrust washers in which a blank material in the form of a flat bar is forced to pass between an upper and a lower forming rolls arranged as a pair. The blank material is pressed onto one of the forming rolls to be bent in the breadth... | 05/01/1979 |
| 4133197 | Roll-type machine for forming cylindrical sheet metal bodies A roll-type machine for forming a cylindrical metal body from an initially flat sheet of metal; such cylindrical body being for use in the manufacture of tanks for air, gas, or water. The machine includes a forming roll which is mounted and controlled in ... | 01/09/1979 |
| 4114432 | Coil winding apparatus Apparatus for winding a linear, elongated object into a coil including a bending roller assembly for bending the linear, elongated object into loops of the coil, and a leveling device for bringing the curvature of the coil to a predetermined level. The le... | 09/19/1978 |
| 4059215 | Circular double-jacketed gasket with single joint A new and improved method and apparatus for forming a circular double-jacketed gasket and the new and improved double-jacketed gasket formed thereby, wherein a substantially linear double-jacketed gasket assembly having a substantially rectangular cross-s... | 11/22/1977 |
| 4041748 | Method and apparatus for fabricating metal container Apparatus and method for fabricating a rectangular waste disposal container from a single steel sheet, includes a cantilever shaped frame supporting a rectangular mandrel rotatable on a horizontal shaft. A vertically oriented hydraulic ram depends from an... | 08/16/1977 |
