Abstract: The invention relates to a process for manufacturing plastic packaging in tubular form, which process comprises a wrapping step during which a laminate (11) is wrapped, an abutting step during which the edges (8, 9) of the laminate (11) are butted together and a fastening step during which said edges (8, 9) of the laminate (11) are welded together, characterized in that a bead (12) of plastic in the molten state is extruded and deposited on the internal face of the packaging so as to cover at least the weld zone (10) defined between the edges. The energy needed to produce the weld (10) comes from the plastic bead (12). The invention also relates to packaging obtained from the aforementioned process and to a device for implementing said process.

Abstract: The invention relates to a method for connecting two fabric pieces (11, 12). Said method comprises the following steps: a) two fabric pieces (11, 12) are joined together at a joint (18), said fabric pieces (11, 12) being provided with an elastomer coating on one side (11a, 12a) and a thermoplastic coating on a second side (11b, 12b); b) the joint (18) is covered on the first side (11a, 12a) of the fabric pieces (11, 12) by means of a first seam strip (15) that is provided with an elastomer coating on the side (15a) facing the fabric pieces (11, 12), while the joint (18) is covered on the second side (11b, 12b) of the fabric pieces (11, 12) by means of a second seam strip (16) that has a thermoplastic coating on the side (16b) facing the fabric pieces (11, 12); c) the fabric pieces (11, 12) are connected to the first seam strip (15) by curing at least one of the elastomer coatings, and the fabric pieces (11, 12) are connected to the second seam strip (16) by treating the thermoplastic coatings.

Abstract: A welding machine having a frame that includes end supports spanned by a top beam with a truncated V-shaped cross-section. A vacuum track assembly disposed vertically beneath the top beam retains fabrics to be welded on a perforated surface using suction. A welding head travels along the top beam and applies heat and pressure to the surface to weld the fabrics together. The top beam and vacuum track assembly are extendable by including additional unit segments from which the beam and assembly are constructed.

Abstract: A method and apparatus for lining process tanks. The method comprises lining a tank with a plurality of sheets, wherein the tank has walls and a bottom that intersect at a corner of the tank. The method comprises bonding a bottom sheet of the plurality of sheets to the bottom of the tank. Next, a pair of sheets of the plurality of sheets are bonded to adjacent walls of the tank and above the bottom sheet, each sheet of the pair of sheets having a first edge and a second edge such that the first edges of the pair of sheets are positioned at the intersection of adjacent walls of the tank to position an interface between the pair of sheets. The method also comprises extrusion welding the pair of sheets together by infusing a molten thermoplastic material along the pair of sheets and within the interface of the pair of sheets.

Abstract: A flat belt 20 is prepared. A first belt end 21 of the belt 20 has a finger shape and a second belt end 22 of the belt 20 has the complimentary shape to the first belt end 21. An adhesive is applied to one of an end face 21K of the first belt end 21 and an end face 22K of the second belt end 22 or to both. Next, both end faces 21K and 22K are butted. The butted portion B of the first and second belt ends 21 and 22 are pressed in the belt width direction. Due to this, the end faces 21K and 22K are bonded by the adhesive so that the first and second belt ends 21 and 22 become joined.

Abstract: A method of manufacturing a laminate of polymeric tapes is provided. Polymeric tapes of the core-cladding type are used, in which the core material has a higher melting temperature than the cladding material. The method includes pretensioning the polymeric tapes, and positioning the polymeric tapes and consolidating the polymeric tapes to obtain the laminate. The positioning is carried out in two, three, four or more planes. The polymeric tapes are arranged in each plane in a parallel, side-by-side relationship in a first direction, the polymeric tapes of each plane are offset in a second direction relative to the polymeric tapes in an adjacent plane, the second direction being substantially perpendicular to the first direction. The polymeric tapes of the laminate are unidirectionally arranged in a single direction in all of the two, three, four or more planes.

Abstract: A non-fibrous ultra high molecular weight polyethylene tape having a width of 1-inch or greater and a modulus of 1,400 grams per denier or greater. The non-fibrous UHMWPE tape is obtained by compression molding ultrahigh molecular weight polyethylene powder at a temperature below its melting point and then drawing and stretching the entire resultant compression molded UHMWPE sheet, with no slitting or splitting of the sheet, at a draw ratio of at least 100:1. The UHMWPE tape can be produced in weights of 6,000 to 90,000 denier or greater. The UHMWPE tape of the present invention minimizes the effect of stress concentrators that are prevalent with fibers and thereby enables the tape to be drawn at much higher draw ratios than is possible with fibrous UHMWPE. When used in ballistics panels, the high modulus high molecular weight polyethylene tape of the present invention improves ballistic performance by providing enhanced dissipation of the impact energy of a projectile.

Abstract: An implantable annuloplasty suture guide is intended to lie against at least a portion of an annulus surrounding a human heart. The implantable annuloplasty suture guide is made of an elongated ribbon of braided, heat setable material. The braided, heat-setable material is heat-set in a curved lengthwise configuration corresponding to at least a portion of the annulus of the human heart valve. A method of making an implantable annuloplasty suture guide configured to lie against at least a portion of an annulus defined by tissue surrounding a human heart. The method includes the steps of providing an elongate biocompatible ribbon comprising a braided, heat setable material. A fixture is provided, with the fixture comprising a heat conducting material defining an elongate cavity having a curved length-wise configuration corresponding to at least a portion of the annulus defined by the tissue surrounding the human heart.

Abstract: A connection method for interconnecting end portions of a thermoplastic resin long body in which conductive unstretchable members are embedded within the thermoplastic resin along a longitudinal direction, wherein the unstretchable members in each of specific sections in the both end portions of the thermoplastic resin long body are heated using an induction heating portion so that the thermoplastic resin coating the unstretchable members is removed by melting for the unstretchable members to be exposed, after which the both end portions are interconnected while they are held in a state where the unstretchable members being exposed in the respective end portions are butt-connected to each other.

Abstract: It is the object of the present invention a thermoplastic element for the protection against corrosion in the thermofused splicing of a thermoplastic tube to a thermoplastic connection, which element has the shape of a fully thermoplastic tubular sleeve, able to be introduced into a socket mouth formed by the expansion of the tube end, said splice element bearing only one internal diameter and two external diameters which define a cylindrical external portion of larger diameter and a tubular projection which diameter is smaller than the former, and which is introduced into the thermoplastic tube, a lateral wall of the external portion defining a front butt of said thermoplastic element against the end of the thermoplastic tube. Said splicing element also exhibits an auxiliary ring which operates as a reference point for the assembly thereof.

Abstract: A non-fibrous ultra high molecular weight polyethylene tape having a width of 1-inch or greater and a modulus of 1,400 grams per denier or greater. The non-fibrous UHMWPE tape is obtained by compression molding ultrahigh molecular weight polyethylene powder at a temperature below its melting point and then drawing and stretching the entire resultant compression molded UHMWPE sheet, with no slitting or splitting of the sheet, at a draw ratio of at least 100:1. The UHMWPE tape can be produced in weights of 6,000 to 90,000 denier or greater. The UHMWPE tape of the present invention minimizes the effect of stress concentrators that are prevalent with fibers and thereby enables the tape to be drawn at much higher draw ratios than is possible with fibrous UHMWPE. When used in ballistics panels, the high modulus high molecular weight polyethylene tape of the present invention improves ballistic performance by providing enhanced dissipation of the impact energy of a projectile.

Abstract: A ballistic resistant panel including a strike face portion and a backing portion. The strike face portion includes a plurality of interleaved layers of non-fibrous ultra high molecular weight polyethylene tape. The backing portion includes a plurality of interleaved layers of cross-plied fibers of ultra high molecular weight polyethylene. The entire stack of interleaved layers is compressed at high temperature and pressure to form a ballistic resistant panel having a strike face on one side. It has been found that ballistic resistance increases as the weight ratio of the strike face portion with respect to the backing portion decreases. A composite panel having a strike face Tensylon tape with at most 40% of the total weight of the panel exhibits improved ballistic resistance properties as compared to a monolithic structure of strictly interleaved layers of cross-plied high modulus fibers.

Abstract: A ballistic-resistant molded article having a sandwich-type structure including two outer portions of a first high modulus material surrounding an inner portion of a second high modulus material. The outer portions are comprised of a plurality of interleaved layers of adhesive coated cross-plied non-fibrous ultra high molecular weight polyethylene tape. The inner portion is comprised of a plurality of interleaved layers of high modulus cross-plied fibers embedded in resin. The stack of interleaved layers is compressed at high temperature and pressure to form a hybrid sandwich ballistic-resistant molded article that includes a mix of high modulus materials. It has been found that ballistic resistance is higher for the hybrid structure than for a monolithic structure of comparable areal density.

Abstract: A stack having at least one layer of tapes and at least one layer of multifilament yarn.

Abstract: A wide sheet of highly oriented ultra high molecular weight polyethylene comprising a plurality of strips of highly oriented ultra high molecular weight polyethylene partially overlapped or abutted longitudinally to define joints between adjoining strips wherein the thickness of the joint is less than about 80% of the thickness of the sum of the thicknesses of the adjoining strips that make up the joint. A continuous method for the production of such materials comprising subjecting longitudinally overlapping or abutted strips of these materials to temperatures below the melting point of the UHMWPE and pressures over 300 pli is also disclosed.

Abstract: The present invention provides thermoplastic tubes, thermoplastic melting plates, thermoplastic tube connecting apparatus, and methods for using the same.

Abstract: A ballistic-resistant panel in which the entire panel or a strike-face portion thereof is formed of a plurality of sheets of high modulus high molecular weight polyethylene tape. The sheets of high modulus polyethylene tape can be in the form of cross-plied laminated layers of tape strips or a woven fabric of tape strips. The strips of UHMWPE tape include a width of at least one inch and a modulus of greater than 1400 grams per denier. The ballistic-resistant panel may include a backing layer of conventional high modulus fibers embedded in resin. A wide variety of adhesives were found acceptable for bonding the cross-plied layers of high modulus polyethylene tape together for forming the ballistic-resistant panels of the present invention.

Abstract: A system that delivers window or door components to an assembly station where multiple components are assembled to form a multi-sided window or door frame or sash. A preparation station in proximity to the assembly station includes an alignment fixture for bringing multiple frame or sash components into alignment while a preceding frame or sash is being assembled at the assembly station. A conveyor moves aligned components of a next subsequent frame or sash to the assembly station while maintaining the alignment of said window components for clamping at the assembly station prior to assembly. One system is used to assemble vinyl door or window components by welding them together.

Abstract: A system and apparatus relating to connecting at least one first longitudinal periphery of at least one first magnetic sheet with at least one second longitudinal periphery of at least one second magnetic sheet by placing such first longitudinal periphery in adjacent relationship with such second longitudinal periphery; and connecting such first longitudinal periphery in adjacent relationship with such second longitudinal periphery; wherein such connecting step comprises the step of unitizing such at least one first magnetic sheet and such at least one second magnetic sheet into one unitary magnetic sheet.

Abstract: A method of welding a window frame provides a welding system (10) having movable head fixtures (16). Certain of the head fixtures include cutting structure (37) and each head fixture includes heat supplying structure (40). A one-piece lineal (20) has first and second ends and notches therein. The lineal is loaded with respect to the head fixtures, with portions of the lineal being folded about the notches to define folded corners. Head fixtures are moved to clamp on the lineal. The cutting structure cuts the lineal generally at each notch to separate each of the folded corners from the lineal, with each corner of the lineal being defined by a pair of ends. The head fixtures are repositioned so as to provide a space between each pair of ends. A heat supplying structure is inserted into the space to heat each pair of ends and then removed. The head fixtures are moved so that each pair of ends contact and join in a thermally welded manner.

Abstract: A non-woven ballistic material that demonstrates exceptional ballistic properties which ballistic material is fabricated by the lamination or angular lamination of a plurality of wide sheets of UHMWPE comprising a plurality of strips of highly oriented ultra high molecular weight polyethylene partially overlapped or abutted longitudinally to define joints between adjoining strips wherein the thickness of the joint is less than about 80% of the thickness of the sum of the thicknesses of the adjoining strips that make up the joint.

Abstract: The invention relates to a method for process automation, for connecting the edge of two correspondingly profiled ends of at least one profiled sealing element, said profiled sealing element being already applied to a surface of a vehicle or a vehicle component. The invention also relates to a device for carrying out said method.

Abstract: A wide sheet of highly oriented ultra high molecular weight polyethylene comprising a plurality of strips of highly oriented ultra high molecular weight polyethylene partially overlapped or abutted longitudinally to define joints between adjoining strips wherein the thickness of the joint is less than about 80% of the thickness of the sum of the thicknesses of the adjoining strips that make up the joint. A continuous method for the production of such materials comprising subjecting longitudinally overlapping or abutted strips of these materials to temperatures below the melting point of the UHMWPE and pressures over 300 pli is also disclosed.

Abstract: A method of producing hollow plastic components, such as for air conduction in internal combustion engines, in which two or more molded or hollow body members are manufactured using injection molding technology, are thereupon brought together and are joined together using plastic welding technology.

Abstract: An insulating material is fed in and shaped by superposing a plurality of N layers Ci (3) of the insulating material. For each layer Ci, a plurality of ni, axial insulating elements Ei precut from the insulating material is formed, a rough form of the tubular insulating device is formed by using an adhesive to assemble the Ni elements Ei of each layer Ci which are juxtaposed along a plurality of joining zones Ji, so that the plurality of joining zones Ji+1 of a layer Ci+1 is offset relative to the plurality of joining zones Ji, of the adjacent layer Ci. Then, by the adhesive is polymerized, and the tubular element rough form is subjected to a heat treatment. The method is economical and makes it possible to obtain a device of high mechanical strength.

Abstract: An implantable device is provided for soft-tissue or soft tissue-to-bone repair, fixation, augmentation, or replacement that includes a biomimetic and biodegradable nanofiber scaffold. Also provided is a fully synthetic implantable multiphased scaffold which includes, in a single continuous construct, a plurality of phases to mimic the natural anatomy of a tendon or ligament and their insertion sites. Also provided are scaffold apparatuses for musculoskeletal tissue engineering.

Abstract: A method for bonding fluororesin films, a wide fluororesin film obtained by the method, and a covering material for agricultural use, made thereof, are presented. A method of bonding films (A), wherein two sheets of films (A) made of a fluororesin, are disposed so that their edges overlap each other, a central part (b1) of the overlapping portion (B) is press-bonded under heating at a temperature within a range of from lower by 5° C. to higher by 20° C. than the melting point of the fluororesin, and then the entire area of the portion (B) is press-bonded at a temperature within a range of from lower by 30° C. to lower by more than 5° C., than the melting point, to weld the two sheets of films (A); a wide fluororesin film obtained by the method; and a covering material for agricultural use, made thereof.

Abstract: A pinseam press fabric is smoothed in the area of the seam by depositing polyurethane particles having a size of about 1 to 500 micrometers across the seam of the felt defined by the ends of the fabric. The polyurethane particles are drawn into the seam end by the application of a vacuum. Once the particles are deposited, the fabric is heated so that the polyurethane particles melt to form a polymeric matrix.

Abstract: This invention relates seed layers and a process of manufacturing seed layers for casting silicon suitable for use in solar cells or solar modules. The process includes the step of positioning tiles with aligned edges to form seams on a suitable surface, and the step of joining the tiles at the seams to form a seed layer. The step of joining includes heating the tiles to melt at least a portion of the tiles, contacting the tiles at both ends of at least one seam with electrodes, using plasma deposition of amorphous silicon, applying photons to melt a portion of the tiles, and/or layer deposition. Seed layers of this invention include a rectilinear shape of at least about 500 millimeters in width and length.

Abstract: A fusion welding device including a first holder and a second holder where the respective holders are adapted to hold an end portion of a first work and a second work, respectively, such that the works are moveable in a longitudinal direction; a heater, operable to heat the first and second works; two movers adapted to move the first and second holders close to or apart from each other; and a third mover adapted to move the first and second holders in synchronization with each other in a direction along the first and second faces. The first and second holders are moved by the third mover where the first and second faces are in contact with each other, whereby end faces of the end portions of the first and second works are pressed to each other.

Abstract: The invention relates to a method for melting a thermoplastic plastic material, particularly for welding plastic parts, wherein the plastic is heated by means of heat radiation via a radiation body (4) and simultaneously by the application of a hot gas, wherein the invention provides for the radiation body (4) to be heated on the interior thereof by burning a combustion gas, and for the exhaust resulting from the burning to be applied to the plastic material.

Abstract: A method of making a sporting article includes: providing a plurality of sheet segments each of which is made of a multi-layered material that includes a thermoplastic foamed layer, and a thermoplastic non-foamed layer laminated on the foamed layer, each of the sheet segments having at least one connection end; and assembling the sheet segments to form the sporting article by heat-sealing the connection ends of the sheet segments, thereby forming heat-sealed seams in the sporting article.

Abstract: The invention is a method for manufacturing a felt belt having a support which is embedded in a fiber matrix and is made up of at least two yarn layers arranged one above another, at least one is a longitudinal yarn layer made up of longitudinal yarns extending in parallel fashion, and at least one is a transverse yarn layer made up of transverse yarns extending in parallel fashion, transverse yarns being present that are continuous over the width of the felt belt. For each longitudinal yarn layer, a first support module is manufactured, by means of a first auxiliary support web, at a width that is less than the width of the completed felt belt, the first auxiliary support web being wound in helical fashion, before, during, or after the application of yarns, to a width that corresponds to the width necessary for manufacture of the completed felt belt.

Abstract: The invention relates to a plastic film (3) including a pre-existing oriented tear zone (11, 7), characterised in that the zone (11, 7) comprises a butt weld (7) which assembles one end of the plastic film (9) with another end of the plastic film (10), said weld zone being disposed in the thickness of one or more of the welding layers of the plastic film (3). The invention also relates to a method and a device for producing said plastic film.

Abstract: The present invention provides a primer for a thermoplastic and/or elastomeric substrate, the primer comprising a film of an epoxy-modified polymer selected from the group consisting of an epoxy-modified-thermoplastic polymer, an epoxy-modified-thermoplastic polymeric composite, an epoxy-modified-elastomeric polymer, an epoxy-modified-elastomeric polymeric composite, a blend thereof, and any mixture thereof. Also provided are methods of repairing, inserting, assembling and coating a thermoplastic or elastomeric substrate using the primer of the present invention.

Abstract: A method of installing flooring and resulting structure are disclosed. The method is particularly useful for sanitary nonslip applications such as kitchens. The method includes the steps of positioning a first sheet of polymer flooring material with an upwardly-facing step cut along one edge of the first sheet on a floor to be covered, and applying a second sheet of polymer flooring material with a complementary downwardly-facing step cut along one edge of the second sheet to the upwardly facing step cut of the first sheet and to the floor adjacent the first sheet while concurrently sealing the respective faces to one another in a step lap joint.

Abstract: A compression foot cuff includes an inflatable member. The inflatable member defines a pocket receiving a generally rigid counterforce component.

Abstract: A method and apparatus for welding two separate ends of an extrusion or two separate extrusion ends to form a flashless extrudate or gasket by having a first and a second mold for supporting and clamping the extrusion ends, and a spacer bar for positioning the extrusion ends to a location within the mold. A heating element elevates the temperature of the extrusion ends to a welding condition, and a clamping device is used for securing the extrusion ends. A flashless welding operation results by inserting and clamping at least one heated extrusion end into a welding mold until an acceptable contact pressure is obtained against the opposing heated extrusion end.

Abstract: The invention relates to a method for joining objects made of metal, plastic or ceramic by means of heat input such as soldering or welding, wherein materials such as particles, in particular nanoparticles, elements, atoms, molecules or ions are introduced into the joint. It is proposed according to the invention that a gas stream brings gaseous compounds to the joint which decompose at elevated temperature and deposit particles.

Abstract: A method of thermally joining plastic eavestrough allows plastic eavestrough systems to be considered in more applications including traditional aluminum eavestrough systems where long lengths of continuous eavestroughs are desired. The method allows end to end joining of plastic eavestrough with a thermal joint therebetween or an angled connection with a thermal joint therebetween. This allows plastic eavestrough systems to be customized on site for improved performance and appearance. Thermally joined plastic eavestrough sections either aligned in an end to end or angled connection are possible.

Abstract: Some demonstrative embodiments of the invention include a welded crystal, and/or a method and/or system of producing thereof. In some demonstrative embodiments, the welded crystal welded crystal may include a welded portion joining at least two crystals, wherein the welded portion has a bending strength equal to at least fifty percent of the bending strength of at least one of the crystals. Other embodiments are described and claimed.

Abstract: A lower half (102) and an upper half (103) are plastic components having thermoplasticity. A welding head (1) having a plurality of convex portions formed in a circumferential direction, the convex portions extending in a longitudinal direction within a range of a predetermined length, is inserted so as to span a lower boss (107) and an upper boss (110) in a joint portion (105). The plastic in the joint portion (105) is melted by means of the welding head (1). The lower half (102) and the upper half (103) are welded to and integrated with each other by solidifying the molten plastic.

Abstract: The application discloses a belt formed of first and second portions of thermoplastic sheet including, respectively, first and second pluralities of tabs spaced apart so as to define first and second pluralities of openings along corresponding first and second edges of the first and second portions of thermoplastic sheet, wherein the first plurality of tabs are joined to the second plurality of tabs so as to join the first edge to the second edge.

Abstract: An elastic endless includes an annular belt-shaped elastic crawler body and a plurality of cords with ends, the cords being disposed substantially parallel with one another at predetermined intervals and embedded in the crawler body, wherein one end and the other end of each cord are overlapped, as seen from the belt side.

Abstract: A laminated multilayer textured composite has an embossed fibrous outer layer bonded to one side of an adhesive layer to form a three-dimensional structure defined by all of fibers in depressed areas between elevated areas being fully embedded in the adhesive and most of the fibers in the elevated areas of the elevated areas being free of adhesive. The composite provides an abrasion resistant, surface stable material for covering floors, walls, furniture and the like. An optional backing layer can be simultaneously adhered to the second side of the adhesive layer primarily for improved cushioning and dimensional stability. The composite can be formed by a simultaneous pressure embossing and thermal laminating process.

Abstract: A friction welding process providing a workpiece having a weld surface, and a second workpiece having a weld surface. The workpieces being welded together at respective weld surfaces. Oscillatory motion is affected to the workpieces such that one weld surface moves across the other, thereby raising the temperature at the weld surfaces to create a weld interface. The oscillatory motion is ceased and the weld surfaces cool to weld the workpieces together at the interface. The workpiece has an extending portion, and the weld surface is provided on the extending portion. The extending portion includes an apex region, which engages the second workpiece's weld surface. A side face extends from the apex region to provide a gap between the side face and the second workpiece's weld surface. The gap allows weld flash material to pass from the weld interface through said gap.

Abstract: A method and a device for connecting a plastic line part in a plastic socket. A head end (9) of the line part (6) is heated contactlessly all the way round until the end curls over to a diameter that is greater than the inside diameter of the socket (5). The line part is then pushed into the socket without using a mandrel or insert, so that the head end (9) forms a liquid-tight fused connection of high tensile strength with molten wall material of the socket (5).

Abstract: A web containing comprising side-by-side or eccentric core/shell conjugate short fibers A, which contain two kinds of polyester different from each other in intrinsic viscosity, and elastic conjugate fibers B, which contain a thermoplastic elastomer having a melting point lower by 40° C. or more than the two kinds of polyester, and a nonelastic polyester, with at least the thermoplastic elastomer being exposed on a surface of the fibers, is subjected to a heat treatment at a temperature equal to or higher than the melting point of the thermoplastic elastomer, so as to obtain a polyester elastic fiber structure, and then polyester woven or knitted fabrics are laminated adhered on both surfaces of the polyester elastic fiber structure with a polyester adhesive, followed by heat molding into a curved shape by a molding process depending on necessity, so as to obtain a composite fiber structure.

Abstract: An improved method for joining together the edge portions of first and second panels includes applying a heat curable adhesive along the edge portion of the first panel and then abutting the edge portion of the second panel with the edge portion of the first panel so that the adhesive is interposed between the edge portions of the first and second panels and the adhesive spaces the panels apart and provides a gap between the panels. A brazing material is melted and fills the gap and the heating of the panels by the brazing causes at least partial curing of the adhesive so that the panels are joined together by both brazing and adhesive bonding.

Abstract: In a belt splicer, having crossbeams straddling over and under the splice area, and having tie-bolts holding the ends of the crossbeams together, the safety system comprises link-spacers which link the crossbeams together. The link-spacers are profiled complementarily to the crossbeams, whereby the link-spacers can slide relative to the crossbeams. If a tie-bolt should fail, the cross-beams are held in place, relative to the other crossbeams, by the link-spacers.