Class 264/505 - Corrugating

Subclass of Class 264 - Plastic and nonmetallic article shaping or treating: processes
Definition: Processes in which a portion of the workpiece is formed
No. of patents: 39
Last issue date: 02/21/2012

Number	Title	Issue Date
8119055	Method and apparatus for corrugating and winding up rolls of plastic film A method and an apparatus for corrugating and winding up rolls of a plastic film. The plastic film is corrugated as it is continuously wound onto a roll, by a film drawing drum conformed with a plurality of longitudinally extending grooves to perform open-end corrug...	02/21/2012
7993568	Profiled insulation LAN cables A device for making a profiled insulation having an extrusion die with an extrusion tip and a polymer chamber surrounding the extrusion tip. The polymer chamber has at least one air chamber therein. The air chamber is held in place and coupled to the outside of the ...	08/09/2011
7309663	Asymmetric porous polytetrafluoroethylene membrane for clothing The present invention provides an asymmetric porous PTFE membrane for clothing having little change over time and conventionally known properties of a porous PTFE molded article such as water permeability resistance, air permeability, sealing properties and electric...	12/18/2007
7237769	Cooling tower film fill apparatus and method A heat exchange apparatus for a cooling tower having first and second corrugated film, fill sheets. Each film fill sheet includes a plurality of arch shaped dimple features oriented to forms various rows of the arch shaped dimple features. The first and second sheet...	07/03/2007
7238317	Method of continuously producing a twin-wall pipe with a ventilation zone between a socket and an adjacent elevation A twin-wall pipe comprises an internal pipe and an external pipe. The external pipe is corrugated, having elevations and troughs. The twin-wall pipe is further provided with a socket. In a transition portion towards the twin-wall pipe and the socket, provision is ma...	07/03/2007
7155846	Article of footwear with exterior ribs An article of footwear includes a sole assembly and an upper secured to the sole assembly. A plurality of ribs is positioned on an exterior surface of at least one of the upper and the sole assembly, with each rib including a plurality of faces and each face having ...	01/02/2007
6954983	Method for producing flat cables A method for continuously producing flat cables with electric conductors embedded in an isolating material which are arranged at a certain distance from each other, parallel to each other. According to this invention, the band shaped conductors are guided separately...	10/18/2005
6926656	Method and apparatus for fabricating corrugated composite stiffeners An apparatus and method for fabricating corrugated composite stiffeners provides a base tool having grooves formed in an outer surface and a roller having a rotating shaft and a removable, lobed, elastomeric member surrounding the shaft. The lobes of the elastomeric...	08/09/2005
6902170	Means for venting gas pressure buildup from a package The present invention is a gasket that is capable of venting gas from a positive pressure gas generating system in a package, such as a bottle or a container. In so doing, the gasket prevents the liquid contained within the package from leaking out. The gasket has a...	06/07/2005
6759001	Method for producing embossed poly(vinyl alcohol) film A method for producing an embossed PVA film, which includes embossing the film such that the crystallinity index of the emboss top is 0.50-0.90. The invention provides an embossed PVA film superior in resistance to blocking even when in a rolled state, in appearance...	07/06/2004
6630094	Flexible plastic hinge having tear resistance A tear-resistant flexible hinge structure is placed between a pair of substantially rigid panels so as to permit the panels to be hinged one with respect to the other, where the flexible hinge is formed from a plastics material such as polyvinyl chloride....	10/07/2003
5656357	Molded corrugated cardboard and method for producing same Corrugated cardboard is molded into a desired shape for use in interior trim, such as for use in lining the ceiling of an automobile. The molded corrugated cardboard is obtained by applying a hot-melt adhesive onto all or at least a portion of a side of a...	08/12/1997
5543204	Bi-directionally corrugated sandwich construction A bi-directionally corrugated sandwich construction for use in applications equiring high-strength, light-weight components is disclosed. The sandwich construction comprises first and second face sheets positioned essentially parallel to and spaced apart f...	08/06/1996
5508083	Machine direction fluted combined corrugated containerboard Provided is an improved corrugated containerboard that includes a corrugated medium sandwiched between and secured to a top liner and a bottom liner. The corrugated medium, top liner, and bottom liner each include fibers that are oriented in a machine dir...	04/16/1996
5484640	Honeycomb structure having stiffening ribs and method and apparatus for making same An improvement in a corrugated strip having major flat sections which extend between longitudinal edges of the strip and which are joined along lateral edges by intermediate sections extending between the major flat sections, includes stiffening ribs prot...	01/16/1996
5443891	Low amplitude wave-board A low amplitude wave-board panel having improved bending strength and bending stiffness properties is provided. More specifically, the amplitude of the waves is substantially equal to, or less than half the thickness of said board. Preferably, the wave am...	08/22/1995
5443779	Method of production of reinforced composite corrugated body and method of formation of corrugating rollers for use therein The strength and workability of a reinforced composite corrugated body are improved. A corrugated body is produced such that corrugate lines provided with vertically spaced ridges and grooves formed alternately in a sheet material are formed in a smooth m...	08/22/1995
5340301	Corrugated substructure forming tool A process and apparatus for rapidly and accurately forming corrugated substructures of complex shapes utilizing composite material A plurality of movable elongated ribs are positioned on a base plate for lateral movement between an open position at which ...	08/23/1994
5340638	Bulk material for packaging, packaging unit using same, process and apparatus for producing them Chips of cardboard, in particular of packing cardboard, which are formed by cutting flat, preferably used packing cardboard lengthwise and crosswise, and the bulk volume of which is increased by copings and/or bent-over portions and/or peaks and/or recess...	08/23/1994
5339520	Braided high-temperature packing A high temperature, high pressure resistant packing (e.g., for the packing gland of a valve stem) has a core of density 1.3-1.6 gm/cc that includes a plurality of strands, each strand including a flexible graphite tape, longitudinally corrugated and folde...	08/23/1994
5338404	Method of forming a lignin reinforced cellulosic product Preformed cellulosic linerboard as utilized in the manufacture of corrugated products is provided with enhanced crush strength by a combined lignin-coating and calendering treatment. The linerboard is coated with an aqueous lignin-containing solution and ...	08/16/1994
5223326	Corrugated metal-clad sandwich panel with a wafer composite core A corrugated metal-clad sandwich panel with a wafer composite core is provided. The single stage process for the panel manufacture involves utilizing a press platen system which is mechanically convertible between a planar and a corrugated configuration. ...	06/29/1993
5100607	Blow-molding methods to form containers having upper and lower sections of different thicknesses A plastic container having base and sidewall portions is provided with corrugations as a unitary part of the sidewall portion. The sidewall portion is of a thickness that would not be capable of supporting itself without the unitary corrugations. The corr...	03/31/1992
5068075	Method of blow molding aseptic bottles A parison is blow molded to form a sealed aseptic bottle for subsequent opening and filling. The pressure of the gas in the interior of the bottle when sealed is sub-atmospheric to prevent distortion of the bottle....	11/26/1991
4721593	Process for molding and curing a composite skin-stiffeners assembly A process using molds for curing a composite skin-stiffeners assembly from fiber material impregnated with a resin. This process allows molding and co-curing of single-skin type panels with integral stiffeners, allows stiffeners of variable heights, thick...	01/26/1988
4575400	Apparatus for manufacturing corrugated tubes A method and apparatus for forming a corrugated tube having a smooth inner wall surface and a corrugated outer wall are provided. A first strip of resin material is wrapped around first portions of rollers arranged in a circular array and is helically wra...	03/11/1986
4504538	Rug underlay of fibers needled into mesh A rug underlay comprising a central open lattice of stiffening material, and intermediate layer of fiber batting on each side of the lattice needle punched through the lattice, an upper outer corrugated layer of heat fused fibers, and a lower outer stiff,...	03/12/1985
4504537	Rug underlay comprising open lattice with partially fused needle punched fiber layers A rug underlay comprising a central open lattice of stiffening material, and intermediate layer of fiber batting on each side of the lattice needle punched through the lattice, an upper outer corrugated layer of heat fused fibers, and a lower outer layer ...	03/12/1985
4474717	Method of making a twin-wall internally corrugated plastic structural part with a smooth non-cellular skin A method and apparatus for making a twin-wall internally corrugated plastic structural part provided with a smooth, dense, solid, thin walled, non-cellular skin comprising injecting a thermoplastic or resin material into a pair of closed mold members whic...	10/02/1984
4255380	Method and apparatus for manufacturing signs or the like carrying information which is different for different viewing angles A sign is fabricated which presents different messages depending on the angle of view. The fabricated sign has walls, different sides having parts of different messages. The method of fabrication includes taking at least two images, cutting them into stri...	03/10/1981
4228123	Method of making biaxially oriented nonwoven fabrics A nonwoven fabric having alternating stripes of high fiber density and low fiber density is made in such a manner that the high fiber density stripes run across the fabric and maximize the cross direction strength to a point that the cross direction/machi...	10/14/1980
4157604	Method of high speed yarn texturing Multifilament thermoplastic synthetic yarn is textured by an improved process involving propelling the yarn through an energy tube by superheated steam to strike, at an oblique angle, an unyielding barrier within a chamber in which the yarn then forms a p...	06/12/1979
4145199	Method and apparatus for forming kinky fibers from heat-softenable material The disclosure embraces a method of and apparatus for processing heat-softenable materials, such as glass, to form fibers or filaments from streams of the material and particularly a method of and apparatus for effecting successive distortions, oscillatio...	03/20/1979
4115611	Selectively bonded composite tape A partially compacted fiber-reinforced metallic tape has a layer of collimated fibers between two layers of metal foil, the foil being partially compacted around the fibers, somewhat deforming the foil around the fibers and, in selected areas only, the fo...	09/19/1978
4104430	Vacuum formable materials The preparation of a laminate which can be shaped by vacuum forming is described. The laminate is of a stretchable fabric, a plasticized vinyl chloride polymer layer and sandwiched between them a plastics foam layer. Such a material has a luxurious and "f...	08/01/1978
3969473	Method of corrugating a web of thin thermoplastic material in a continuous production Method for continuously forming a corrugated web of thermoplastic material in which the corrugations extend diagonally across the web. The web is first softened by heat and then passed to a molding belt which moves in an endless path while supporting and ...	07/13/1976
3953566	Process for producing porous products This invention provides a tetrafluoroethylene polymer in a porous form which has an amorphous content exceeding about 5% and which has a micro-structure characterized by nodes interconnected by fibrils. The material has high porosity and high strength. It...	04/27/1976
3932248	Method and apparatus for making laminated board with a pocketed core Method and apparatus are disclosed for making a laminated board of thermoplastic resin. The laminated board is formed of a pocketed core sheet having inverted and non-inverted pockets disposed between a pair of face sheets which are bonded to the extremit...	01/13/1976
3931383	Method for continuously forming plastic sheet with vacuum pressure A method for forming an extruded plastic sheet with vacuum pressure and without mating dies. The plastic sheet is extruded onto a heated portion of a supporting bed which maintains the sheet in a soft condition. The bed also includes a cooled portion adja...	01/06/1976

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Class 264/505 - Corrugating