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| Number | Title | Issue Date |
| 8118584 | Device and method for processing carrier tape A carrier tape forming apparatus includes a tape paying-out unit for paying out a tape to be worked, a tape feeding unit for feeding the tape, a forming unit for effecting embossing on the tape, a perforating unit for perforating at least a feeding hole in the tape,... | 02/21/2012 |
| 7311509 | Externally cooled moving mold A molding apparatus includes a moving mold for shaping molten plastic into product made within the moving mold. The moving mold is surrounded by an air block housing to define a cooling chamber exteriorly around the moving mold. At least one heat exchanger is locate... | 12/25/2007 |
| 7306448 | Mobile impression half-mould for a corrugator for making pipes with transverse ribs A half-mold for a corrugator for making pipes with transverse ribs. The half-mold comprises two sides located spaced apart from each other and a semi-cylindrical base surface linking the two sides. Directly mounted forming elements bent in the shape of a semicircle ... | 12/11/2007 |
| 7267535 | Pipe molding apparatus with mold tunnel air turbulence An extruding apparatus which extrudes continuous length of hollow plastic product has an extruder (3) which feeds molten plastic through die equipment (5) to a mold tunnel (7) formed by side by side moving mold blocks (9). The apparatus i... | 09/11/2007 |
| 7241126 | Apparatus for imparting protusions and recesses and product An apparatus imparts concaves/convexes to a sheet-like object by passing the sheet-like object between a pair of rollers facing each other. At least one of the rollers is a roller a surface of which is formed by laminating a single or a plurality of circular plates ... | 07/10/2007 |
| 7232302 | Apparatus for continuously shaping an undulating profile into a plate of polymeric material Process and apparatus for continuously and permanently shaping a plate in plastic material according to an undulated profile. The apparatus includes a guide and positioning surface of the plate; a moulding and transferral wheel, peripherally shaped according to a pl... | 06/19/2007 |
| 7207791 | Device for the production of transversely ribbed pipes Described is an apparatus for the production of transversely ribbed tubes comprising mold jaw halves which are movable in a condition of bearing against each other along two guide. The guide paths have a common mold section, a respective return section and two respe... | 04/24/2007 |
| 7172402 | Mold jaw halves for an apparatus for producing transversely ribbed tubes Described is a mold jaw half for an apparatus for the production of transversely ribbed tubes, wherein the mold jaw half (16) has end faces and a base face and in its interior a cooling passage with a coolant feed and a coolant discharge, which open at a spac... | 02/06/2007 |
| 7153117 | Device for producing tubes provided with cross ribs Described is an apparatus for the production of transversely ribbed tubes, comprising mold jaw halves which are circulatingly moved in a condition of bearing against each other along two endless guide paths by means of a respective associated drive device, wherein t... | 12/26/2006 |
| 7147453 | Device for treating flat material The invention relates to a device for embossing and/or glazing films. The device for embossing includes a first and second embossing roll, through which flat material can be fed under pressure, in order to create a pattern. An additional embossing roll is connected ... | 12/12/2006 |
| 7118369 | Corrugated pipe plant The present invention relates to an apparatus for the manufacture of corrugated pipes from thermoplastic in which mould segment halves, which complement one another in pairs, are guided together in a circuit along a mould path adjacent to an injection head, are move... | 10/10/2006 |
| 7048828 | Crimper with crimping wheels mounted on linear bearings A tissue paper crimper of greater rigidity is provided by mounting crimper disks to linear bearings which in turn are mounted to a carriage which can be positioned in the cross machine direction on a frame. The crimper disks are pressed against anvil roll pneumatic ... | 05/23/2006 |
| 7001171 | Apparatus and methods for managing molds and forming transverse corrugations and other shapes in extruded tubular polymer melt parisons A corrugator and mold management apparatus and methods for continuously forming transverse corrugations and other shapes in a tubular polymer melt parison formed by an extrusion die employs a plurality of molds that interlock when mated. Each mold has common outside... | 02/21/2006 |
| 6946012 | Filter and forming system A filter includes first and second sheets of filter media, the second sheet being pleated and forming with the first sheet a plurality of axially extending flow channels having lateral cross-sectional shapes with two adjacent included angles each greater than 45° a... | 09/20/2005 |
| 6910875 | Device for producing an unvulcanized rubber member for tire manufacturing The present invention provides a device for producing an unvulcanized rubber member for tire manufacturing. The device includes an extruder with a die that extrudes the unvulcanized rubber member to form multiple rib-protrusions that extend in a direction correspond... | 06/28/2005 |
| 6905325 | Pipe mold with compensation for pipe shrinkage Pipe molding apparatus having a molding mold tunnel includes an upstream (3) and at least one downstream mold block (7). Each mold block (3, 5, 7) comprises mold block sections which close with one another to form the pipe and which open relativ... | 06/14/2005 |
| 6877976 | Molding die for ribbed pipe A ribbed pipe molding apparatus has a die with a plastic flow passage which carries molten plastic from an extruder to a mold for making the ribbed pipe. The plastic flow passage has a downstream flow region which exits at an acute angle through the external surface... | 04/12/2005 |
| 6773253 | Device for producing profiled tubes consisting of synthetic material An apparatus for the manufacture of profiled plastic pipes comprises a machine bed (1) that half shells (2, 2′) are guided on, forming a molding path (9). A driving pinion (17) is provided above the molding path (9). At least one... | 08/10/2004 |
| 6719942 | Method and apparatus for production of tubing A method and apparatus for producing an extruded product includes a machine that cooperates with an extruder. The machine is commonly used as a corrugator and the extruded product is often corrugated piping. The machine has a frame supporting a trackway in a continu... | 04/13/2004 |
| 6652258 | Mold block for thermoforming large diameter corrugated plastic pipe Mold blocks and methods for thermoforming corrugated plastic pipe that provide a uniform vacuum on the internal lateral surface and optimize forced convective cooling on exterior surface is disclosed. Mating mold blocks have an interior surface with trans... | 11/25/2003 |
| 6644951 | Molding apparatus with mold block section transfer system A molding apparatus which is used in a continuous molding operation includes an endless looped track, track carriers which are moved around the track to and from a product shaping mold region and a transfer system for replacement of mold block members use... | 11/11/2003 |
| 6478066 | Corrugator unit, particularly for sheets or webs of paper, or similar A corrugator unit, particularly for sheets or webs of paper, or similar, of the type comprising at least two rolls (1, 2), having a toothed or corrugated surface (101, 202), and being mutually engaged and pushed against each other by a predetermined press... | 11/12/2002 |
| 6403197 | Filter material A filter material laid in folds in a plurality of folds, characterized in that the folds are provided with at least one bending portion having a bending resistance moment that is reduced in comparison with the remaining portions and a method and apparatus... | 06/11/2002 |
| 6395211 | Method and calender for treating a sheet A calender for treatment of a web of a nonwoven textile V made of thermoplastic fibers. The calendar includes a heated embossing roller made of steel and a counter-roller that runs at the same circumference velocity. The local plastification in the nonwov... | 05/28/2002 |
| 6238198 | Roll-out apparatus for corrugating roller A corrugating roller unit is moved smoothly between a first reference plane and a second reference plane at different heights by a roll-out apparatus having a set of moving support device. A first moving support device supports the corrugating roller unit... | 05/29/2001 |
| 6230776 | Apparatus for forming fibrous filter media A method, apparatus and filter unit product wherein filter media fibers are fed from a media supply source to a mat forming interchangeable and movable contoured surface to contour shape a filter media mat into a preselected form for subsequent movement t... | 05/15/2001 |
| 6170549 | Single facer with resilient small diameter corrugating roll A single facer for corrugated paperboard of the type using a very large diameter fluted bonding roll and a much smaller diameter fluted corrugating roll which engages the bonding roll to provide a corrugating nip. The small diameter corrugating roll is ma... | 01/09/2001 |
| 6042359 | Corrugating machine The invention consists of a corrugating machine comprising a plurality of corrugating bars (6) fixed to an endless chain (5) rotatably driven and a plurality of support bars (13) for the material to be corrugated (10) driven in translation and perpendicul... | 03/28/2000 |
| 5858418 | Machine for reprofiling corrugated materials The invention consists of a machine for continuously reprofiling a corrugated material comprising: support bars (7) for the corrugated material, driven in translation and perpendicular to their direction of displacement, reprofiling bars (2) fixed to an endles... | 01/12/1999 |
| 5792487 | Corrugated plastic wall panels A corrugated plastic panel is produced by providing a plastic panel corrugation device whereby a plastic material is extruded, a cooled extrusion is formed by passing the extrusion through a cooling roller assembly, a corrugated extrusion is formed by pas... | 08/11/1998 |
| 5662764 | Apparatus for producing corrugated tube An apparatus for producing a corrugated tube contains a roller assembly composed of plural rollers having plural convexed rings, respective convexed rings forming a helix as a whole so as to substantially form a single rotating shaft body, and a synthetic... | 09/02/1997 |
| 5645871 | Plastic tile corrugator and mold blocks A machine for making plastic tubing including a plurality of separate carriages for carrying mold blocks about the continuous path. First and second wheel pairs on opposite sides of each carriage ride on first and second tracks respectively through a mold... | 07/08/1997 |
| 5593535 | Apparatus for producing corrugated tube An apparatus for producing a corrugated tube contains a roller assembly composed of plural rollers having plural convexed rings, respective convexed rings forming a helix as a whole so as to substantially form a single rotating shaft body, and a synthetic... | 01/14/1997 |
| 5553894 | Conduit connection to a cassette for perforating sheets A conduit connector is provided so that a heat medium source, a drain and/or a vacuum pressure source are in fluid communication with a cassette containing rotatable cylinders for producing corrugated paperboard. The cassette is insertable in a frame. At ... | 09/10/1996 |
| 5545426 | Production of product sheets having waved marginal portions Sheet products having a waved marginal portion are prepared by passing a sheet of a plastic material through and compressing the sheet between shaped circumferential rollers which are positioned and configured to provide therebetween a plurality of differ... | 08/13/1996 |
| 5531583 | Vacuum mold blocks with cooling for corrugated tubing A machine for making plastic tubing including a plurality of separate carriages for carrying mold blocks about the continuous path. First and second wheel pairs on opposite sides of each carriage ride on first and second tracks respectively through a mold... | 07/02/1996 |
| 5511964 | Apparatus for the production of plastic pipes An apparatus for the manufacturing of plastic pipes has half shells of which two at a time combine as a pair to form a mold. It is provided with a temperature-regulating bell. Supply lines are formed as flexible supply hoses of temperature-resistant plast... | 04/30/1996 |
| 5443379 | Production of product sheets having waved marginal portions Sheet products having a waved marginal portion are prepared by passing a sheet of a plastic material through and compressing the sheet between shaped circumferential rollers which are positioned and configured to provide therebetween a plurality of differ... | 08/22/1995 |
| 5308434 | Sealing device for a pressure case used in a rotary machine A sealing device, which is situated between a rotary cylinder and the opposite edge of a wall of a pressure case, is used in a rotary machine and comprises a seal fitted over its whole length along an edge of a wall, which is parallel to the axis of rotat... | 05/03/1994 |
| 5211962 | Device and process for the production of oxide-ceramic materials Device and process for fast cooling and solidifying of molten materials with a metal oxide base. The device comprises two metal cylinders with parallel axes, which rotate in opposite directions and are cooled. The metal cylinders exhibit a corrugated surf... | 05/18/1993 |
