Matches 1 - 50 out of 144 1 2 3 >
Match Document Document Title
7524177 Pipe molding system with vacuum and temperature controls of cooling plugs  
A pipe mold ( 1 ) produces plastic pipe with an internal wall having a first wall portion ( 23, 25 ) and a second wall portion ( 27 ). The pipe mold ( 1 ) includes a two stage cooling plug ( 35 )...
7517209 Molding apparatus with mold blocks having profiled face adjustment  
A pipe molding apparatus includes a plurality of mold blocks ( 9 ) which move along a molding path to form double wall plastic pipe having an outer pipe wall with corrugations which set outside...
7517210 Apparatus for the manufacture of compound pipes  
An apparatus for the manufacture of compound pipes with an oval cross-section is equipped with mold halves which advance in a direction of production and of which two at a time combine as a pair on...
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....
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...
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...
7214051 Device for manufacturing a double-walled thermoplastic pipe with a connecting sleeve  
A device for manufacturing a double-walled thermoplastic pipe with a connecting sleeve has a molding tunnel with a succession of molds for forming a corrugated molding wall and a connecting sleeve,...
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...
7182589 Embedment device for fiber-enhanced slurry  
An embedment device for use in a structural panel production line wherein a slurry is transported on a moving carrier relative to a support frame, and chopped fibers are deposited upon the slurry,...
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...
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...
7132151 Laminates of films and methods and apparatus for the manufacture  
A laminate of thermoplastic polymeric films comprises a fluted ply A and non-fluted ply B, adhered to one another in bonded zones along some of the flute crests the fluted ply A. The wavelength of...
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...
7104777 Pipe mold with compensation for pipe shrinkage  
Pipe molding apparatus having a moving mold tunnel includes an upstream and at least one downstream mold block. Each mold block comprises mold block sections which close with one another to form...
7014449 Process and apparatus for forming dual hose cuffs, hose, e.g. corrugated hose, provided with cuffs, hose cuffs and hose, e.g. corrugated hose, provided with cuffs formed by such process  
Apparatus and process for forming dual hose cuffs for being split to provide one hose cuff on one length of hose, particularly a corrugated hose, and another hose cuff on another length of hose,...
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...
6986862 Method of making three-fold bellows and an arrangement for carrying out the method  
A vulcanization mold ( 2 ) includes several segments ( 8 a, 8 b; 10 a, 10 b; 12 a, 12 b; 14 a, 14 b ) which define two end profiles ( 8, 10 ) and two inner profile shells ( 12, 14 ) having...
6939503 Method and apparatus for the manufacture of pipes of thermoplastics with transverse profile features  
A method and an apparatus for the manufacture of pipes of thermoplastics with transverse profile features comprises mold segment halves which are circulated by twos on a molding path. A conveying...
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...
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...
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...
6676881 Apparatus for producing multiple channel duct assembly and method thereof  
The present invention resides in that a plurality of pre-molded inner ducts are fed to a cross-head die, and a melted outer duct is extruded around the inner ducts from the cross-head die, and then...
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...
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...
6616437 Device for continuously producing seamless plastic tubes  
Proposed is a device for continuously producing seamless plastic tubes, wherein provided as a distributor element for the molten material to be fed to an annular gap is a distributor plate which is...
6500377 Method and apparatus for activating a moving web  
A method and apparatus for activating a web, such as a web of interconnected disposable absorbent articles. The web is fed in a first direction to an activation system which includes a central disc...
6485286 Exchangeable corrugator  
The invention provides a molding apparatus and particularly a corrugator for manufacturing pipes, particularly corrugated pipes, having at least two series of circulation mold jaw parts, which form...
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...
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...
6383624 PVD Al2O3 coated cutting tool  
The present invention describes a coated CBN cutting tool for metal machining. The tool consists of one or more CBN substrate bodies with or without carbide backing. The coating is composed of one...
6358034 Molding machine with mold block carriage  
A molding machine including a plurality of carriages for carrying mold blocks in an axial direction. The carriages each include wheels on opposite sides which follow a guide track along an endless...
6309205 Device for producing cross-finned pipes  
Described is an apparatus for the production of transversely ribbed tubes, having mold jaw halves which bear against each other along a common mold section and form a mold passage. Each mold jaw...
6206670 Process for the production if transversely ribbed tubes  
Described is an apparatus for the production of transversely ribbed tubes, having mold jaw halves which bear against each other along a common mold section with front faces and form therebetween a...
6155813 Pipe molding apparatus with air assist of plastic onto cooling plug  
A pipe molding apparatus for forming double walled plastic pipe comprises an extruder which feeds first and second parisons of flowing plastic material to a moving mold tunnel to make respectively...
6149421 Device for producing cross-finned pipes  
Described is an apparatus for the production of transversely ribbed tubes, having mold jaw halves which bear against each other along a common mold section with front faces, and form a mold...
6089851 Mold block with air flow control  
A mold block which is used in a moving mold tunnel comprises first and second mold block sections which meet at their parting faces to close the mold block. Each mold block section has a product...
6050805 Extrusion equipment having means for adjusting a delivery end of a die with respect to the extruder for alignment with downstream equipment  
In heavy extrusion equipment where alignment with downstream equipment is necessary, adjusters 34 are provided for adjusting the position of the extrusion die (14) with respect to the extruder...
6045347 Apparatus for the production of plastic compound pipes  
An apparatus for the production of plastic compound pipes has a pipe head and half shells completing each other in pairs to form a mold. The pipe head has a supporting ring, which is joined to a...
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...
6015282 Apparatus for the production of corrugated plastic tubes  
In an apparatus for the production of corrugated plastic tubes an extrusion device passes plastic material into a perpendicularly arranged injection head for injecting the plastic material into a...
5911939 Apparatus and method for preparing cylindrical surfaces  
An apparatus for forming grooves in the cylindrical surfaces of tubes or rods has a passage through the apparatus with a grooving roller mounted adjacent the passage. The roller has a helically...
5897824 Surface heating for a corrugated medium web  
In a single facer, the premoistened medium web is dried on both surfaces to a shallow depth immediately prior to passage through the corrugating nip. The dried shallow surface layers substantially...
5894046 Double-ply corrugated paperboard  
A high strength double-ply corrugated paperboard including upper (102) and lower (106) liners and multiple-ply corrugated mediums (101, 104) disposed between the liners (102, 106), thereby capable...
5879722 System for manufacturing sheets from hydraulically settable compositions  
Systems for manufacturing sheets having a highly inorganically filled matrix. Suitable inorganically filled mixtures are prepared by mixing together an organic polymer binder, water, one or more...
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...
5827468 Turning calibration apparatus and process  
Convoluted tubing of thermoplastic resin is made by extruding the resin as a molten tubular extrudate, feeding said extrudate into the interior of a rotating tubular member which has a helical...
5824351 Molding apparatus with non-reflective mold tunnels  
A plastic part forming apparatus includes a mold tunnel into which molten plastic is fed to form the plastic part. The mold tunnel is made from thermally conductive material and has a part shaping...
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...
5773044 Apparatus for the manufacture of corrugated tubing from thermoplastic synthetic resin  
An apparatus for the manufacture of corrugated tubing of thermoplastic including a shaping path adjoining the head of an extruder, composed of a guide arranged in a frame structure, along which...
5744091 Apparatus for making annularly ribbed plastic pipe and method of making such pipe  
An apparatus for forming a thermoplastic pipe having a profiled surface includes a nozzle having an extrusion orifice feeding extrudate in a downstream direction to a mold path which extends from...
Matches 1 - 50 out of 144 1 2 3 >