Sheets Or Webs Edge Spliced Or Joined Patents (Class 428/57)
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Patent number: 6224714Abstract: Synthetic polymers having hydrogen bonding capability and one or more polysiloxane moieties are capable of providing two distinct properties to paper products, such as tissues, which properties heretofore have been imparted through the use of at least two different molecules. The backbone of these synthetic polymers is based on modified vinyl polymers, such as polyvinyl alcohol, polyacrylamides and polyacrylic acids.Type: GrantFiled: November 24, 1999Date of Patent: May 1, 2001Assignee: Kimberly-Clark Worldwide, Inc.Inventors: Wen Zyo Schroeder, Daniel Arthur Clarahan, Mike Thomas Goulet, Thomas Gerard Shannon
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Patent number: 6224835Abstract: A multilayer intumescent mat or sheet is useful for mounting a pollution control device or as a firestop. In one aspect, the multilayer intumescent sheet of the invention comprises a non-moldable flexible non-intumescent layer and a non-moldable flexible intumescent layer comprising an intumescent material wherein the layers form a single sheet without the use of auxiliary bonding means. The mat desirably includes a significant proportion of inorganic fiber containing shot, and small proportions of shot-free inorganic fiber and intumescent material. In another aspect, the multilayer intumescent sheet of the invention comprises a first non-moldable intumescent layer comprising a first intumescent material and a second non-moldable intumescent layer comprising a second intumescent material, the first and second intumescent materials being different, wherein the layers form a single sheet without the use of auxiliary bonding means.Type: GrantFiled: December 15, 1997Date of Patent: May 1, 2001Assignee: 3M Innovative Properties CompanyInventor: Roger L. Langer
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Patent number: 6210769Abstract: A method of making a high strength polyester strap, preferably a coextruded polyethylene terephthalate, suitable for higher load applications that typically require steel strapping. The coextruded strap has a core of highly oriented PET and a skin or outer surface of a PET which has been impact modified. The strap is made by a process in which a coextruded strand (or sheet) is subjected to a plurality of stretching steps with a final stretch ratio of at least 5 to 1. In a preferred embodiment, the strap has an outermost layer in which the brittleness of the strap is reduced and the toughness is increase by the inclusion of an elastomer, which has been found to significantly improve the weldability of the strap.Type: GrantFiled: August 7, 1998Date of Patent: April 3, 2001Assignee: Samuel Manu-Teeh, Inc.Inventors: Sandra DiPede, Russell J. Gould
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Patent number: 6197398Abstract: A geosynthetic liner may be formed of sheets of substantially liquid impermeable synthetic material such as high density polyethylene. The adjacent edges of adjacent sheets may be lapped over one another to form a lapped joint. The lapped joint may be covered by a relatively narrow seam cover which seals the region between the two sheets. The cover may be formed of a geomembrane layer over a clay layer. The clay layer may be formed of particles of bentonite which are adhesively secured to the geomembrane layer. Thus, the geomembrane liner seam may be sealed by simply unrolling the cover over the lapped joint and covering the sheets and the cover with a layer of overburden.Type: GrantFiled: November 22, 1999Date of Patent: March 6, 2001Assignee: GSE Lining Technology, Inc.Inventor: Michael C. Mathieson
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Patent number: 6177157Abstract: A thermal shield (20) having a first plate (22) and a second plate (24) with an interior chamber (26) positioned in between. The thermal shield includes a seam (40) extending around the periphery thereof which prevents the ingress of fluid into the interior chamber. The seam includes portions (60 and 72) that extend at least partially, and preferably completely, around the outer surface (56) of a shoulder (54) of the seam. In this regard, seam 40 is capable of sealing a pressure differential between the interior chamber and the regions surrounding the thermal shield of up to about 40 psi.Type: GrantFiled: October 30, 1998Date of Patent: January 23, 2001Inventor: Donald Cota
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Patent number: 6168842Abstract: An adhesive label is useable to overlie an adhesive strip and is situated at the leading end of a paper web wound in a roll. The adhesive label is positioned in the running area of a driving belt of a roll changer in a rotary printing machine and is one of several two part labels that are each provided with a defined tear line. These labels are placed over the cut edge of the first layer of the paper web. Each label is provided, in its trailing portion with a plurality of holes.Type: GrantFiled: December 23, 1998Date of Patent: January 2, 2001Assignee: Koenig & Bauer AktiengesellschaftInventor: Alexander Thoma
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Patent number: 6156403Abstract: An article which comprises (1) a composite comprising a polyurethane matrix including fibrous or particulate reinforcement, the polyurethane matrix being formed in situ about the reinforcement by reaction of polyurethane forming components at a temperature below the melting point of the reinforcement and (2) a polymeric film bound to at least one surface of the composite, the film being bound to the composite by adhesion to the polyurethane matrix which emerges or is enhanced as the matrix is formed in situ.Type: GrantFiled: November 6, 1998Date of Patent: December 5, 2000Assignee: RanDemo, Inc.Inventor: William H. Cochran
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Patent number: 6136731Abstract: A jointing tape bonded to a joint between wall slabs has an elongated thin tape portion having at both sides of a back surface thereof alignment faces which are adapted to be bonded to wall surfaces of the wall slabs, respectively. The tape portion is not elasticized in longitudinal and lateral directions thereof. A number of holes is formed in the tape portion. Each of the holes is large enough that putty can pass therethrough. The jointing tape has an elongated thin shielding member having a front surface which is stuck onto a center of the back surface of the tape portion by a first adhesive, and a rear surface which is adapted to be abutted against and cover a space formed in the joint. The shielding member has no hole through which the putty can pass and transparency capable of visibly confirming an opposite side thereof. The jointing tape has a second adhesive applied onto the rear surface of the shielding member and/or onto the alignment faces.Type: GrantFiled: May 15, 1998Date of Patent: October 24, 2000Inventor: Yoshiro Ohashi
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Patent number: 6124009Abstract: An assembly and attachment of cushions wherein premolded skins of elastomeric materials are bonded together. In a first embodiment, a thin layer of elastomer is added at the points of connection of the elastomeric skins. In a second embodiment, the cushion formed by the attachment of two elastomeric skins is mounted to a receiving surface by a layer of elastomer formed between one elastomeric skin and a receiving indentation integrally formed in the skin. A third embodiment reinforces the mounting arrangement of the second embodiment by positioning an O-ring around the indentation. A fourth embodiment uses a layer of elastomer formed between one elastomeric skin and the receiving indentation and the O-ring reinforces the mounting arrangement. A method for bonding together premolded skins of elastomeric material is also disclosed.Type: GrantFiled: February 3, 1998Date of Patent: September 26, 2000Assignee: Mantec Services CompanyInventor: LaMar D. Havens
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Patent number: 6114000Abstract: A ribbon-shaped material for FRTP molded objects 1 having a laminate 4 in which a ribbon-shaped reinforcing fiber tow 2 is placed between thermoplastic resin films for supplying matrix resin which are wider than the ribbon-shaped reinforcing fiber tow 2, and in which the thermoplastic resin films 3,3 are fused in side portions 5,5 of the laminate 4, which are along the longitudinal direction of the laminate 4; and a wide material for FRTP molded objects 30,40 obtained by arranging a plurality of the ribbon-shaped materials for FRTP molded objects 1 whereby adjacent ribbon-shaped materials for FRTP molded objects 1,1 overlap each other in a manner such that the side portion 5 of one of the adjacent ribbon-shaped materials for FRTP molded objects 1 is placed on the side portion 5 or the middle portion 6 of the other along the longitudinal direction, and fusing together each overlapping portion 31,41 of the ribbon-shaped materials for FRTP molded objects 1, whereby the reinforcing fiber tows 2 are arranged in paType: GrantFiled: July 2, 1998Date of Patent: September 5, 2000Assignee: Yamaha CorporationInventors: Kunimasa Muroi, Toshiharu Fukushima, Kunio Hiyama
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Patent number: 6103334Abstract: A thermoplastic curtain wall system is provided for forming a vertical curtain wall from a plurality of wall sections. Each of the wall sections includes a rectangular thermoplastic panel to which at least one locking strip is fused to. The locking strip is formed with two generally dovetail shaped locking members, a channel and a locking lip. In joining two of the wall sections, the locking strips of adjoining wall sections are homogamously interlocked to form connecting joints. Spaces are defined in the joint for accommodating sealant material.Type: GrantFiled: September 1, 1998Date of Patent: August 15, 2000Assignee: AGRU Kunststofftechnik GmbHInventor: Alois Gruber, Sr.
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Patent number: 6083595Abstract: The disclosure is for a wide width decorative flooring product and a method of producing such a product with properly aligned patterns by cutting multiple sections of standard width product and bonding them together at their previous side edges, so the lengths of the cut sections become the width of the new product. In order to minimize misalignment of the pattern at the bonded edges alternate cut sections are turned end for end as the new product is laid out before bonding.Type: GrantFiled: October 16, 1997Date of Patent: July 4, 2000Assignee: Armstrong World Industries, Inc.Inventors: Leda Zaginaylo, George L. Lilley, W. Bruce Holland
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Patent number: 6083343Abstract: A method for joining together structural components made of composite material using a metal splicing member and for joining together a plurality of structural components to form a high-pressure containment vessel for cryogenic propellants. The method in its broadest sense entails a first step of forming plies from "green" composite material, a second step of arranging first and second stacks of the plies on opposite surfaces of the metal splicing member such that portions of the splicing member are captured between the first and second stacks of the plies, and a third step of curing said stacks of plies so that said composite material is co-bonded with said metal splicing member. The "green" plies and the metal splicing member are then subjected to temperatures and pressures sufficient to effect curing of the plies and attachment to surfaces of the splicing member. A variation of this process is disclosed in which cured plies are used.Type: GrantFiled: April 6, 1998Date of Patent: July 4, 2000Assignee: Lockheed Martin CorporationInventors: Andrew James Adams, John David Elvin
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Patent number: 6069378Abstract: A photo diode and a signal processing circuit are formed on a silicon substrate. The signal processing circuit comprises a PNP transistor and an NPN transistor. A region of the signal processing circuit on the silicon substrate is covered by an aluminum thin film functioning as a shielding film. A covered distance L(.mu.m) is defined as an overhang of the aluminum thin film from the edge of the PNP transistor, and is determined based on a ratio of a minimum current of the PNP transistor, which induces malfunction in the signal processing circuit under the solar radiation, to a current generated in the circuit element when subjected to the solar radiation without the aluminum thin film.Type: GrantFiled: December 4, 1997Date of Patent: May 30, 2000Assignee: Denso CorporationInventors: Inao Toyoda, Yasutoshi Suzuki, Keijiro Inoue
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Patent number: 6051193Abstract: The invention provides a multilayer intumescent mat or sheet that is useful as a mounting for a pollution control device or as a firestop. In one aspect, the multilayer intumescent sheet of the invention includes a non-moldable flexible non-intumescent layer and a non-moldable flexible intumescent layer including an intumescent material wherein the layers form a single sheet without the use of auxiliary bonding means. In another aspect, the multilayer intumescent sheet of the invention includes a first non-moldable intumescent layer including a first intumescent material and a second non-moldable intumescent layer comprising a second intumescent material, the first and second intumescent materials being different, wherein the layers form a single sheet without the use of auxiliary bonding means. The invention also provides a pollution control device including a multilayer sheet of the invention disposed between a monolith and a housing.Type: GrantFiled: February 6, 1997Date of Patent: April 18, 2000Assignee: 3M Innovative Properties CompanyInventors: Roger L. Langer, Stephen M. Sanocki, Gary F. Howorth
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Patent number: 6042916Abstract: A composite material construction is provided including a laminate of plies (1, 2, 3, 6, 7) arranged with at least one warp dominated ply (7), alternating with at least one weft dominated ply (1, 2, 3) in a thickness direction and at least two weft dominated plies (1, 2, 3) and at least one warp dominated ply (7) arranged in a width direction in which the width of the at least one warp dominated ply (7) is greater than that of each weft dominated ply (1, 2, 3) and in which the weft dominated plies (1, 2, 3) form a lap joint (4, 5) with each other.Type: GrantFiled: September 2, 1997Date of Patent: March 28, 2000Assignee: British Aerospace Public Limited CompanyInventor: Andrew Godbehere
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Patent number: 6033751Abstract: There is disclosed a spliced web of linerless labels in roll form and a method of making same. The Webs have lines of partial severing along their lengths and the splice is made between two adjacent webs by a frangible tape which enables the labels at the splice to be separated by tearing, and wherein the remainder of the labels are separable by tearing along the transverse lines of partial severing.Type: GrantFiled: December 3, 1997Date of Patent: March 7, 2000Assignee: Monarch Marking Systems, Inc.Inventor: James R. Kline
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Patent number: 6010585Abstract: A manufacturing apparatus for a woody strand cement board, in which a woody group material and cement are combined to form a construction material. The construction material is fire resistant and has a strength comparable to a lumbered raw wood product. The apparatus includes means for finely splitting a fibrous woody material such as wood, bamboo, and reed in a direction parallel to the fiber of the material to obtain pieces of finely split material; a molding frame; and feeders, such as a forming conveyor and swing conveyor, for feeding the pieces to the molding frame to form first and second layers. Mortar is poured on the first and second layers, and pressure is applied to mold and solidify the layers to a semi-hardened state. Two feeders may provide the first and second layers in cross-wise directions.Type: GrantFiled: April 9, 1997Date of Patent: January 4, 2000Assignee: The Forestry and Forest Products Research InstituteInventors: Tsuyoshi Fujii, Atsushi Miyatake
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Patent number: 6004645Abstract: A method of applying a roof membrane assembly to a roof deck. The method includes the steps of providing a roof membrane assembly including a first roof membrane and a second roof membrane. The first roof membrane has at least one longitudinally extending edge and the second roof membrane overlaps the first roof membrane and is bonded along at least one longitudinally extending edge of the first roof membrane to define a membrane flap having a longitudinally extending edge. The roof membrane assembly is then positioned upon the roof deck and at least one roof membrane fastening device is positioned over the first roof membrane and beneath the longitudinally extending membrane flap and secured through the first roof membrane and into the roof deck. The longitudinally extending edge of the membrane flap is then bonded to the first roof membrane.Type: GrantFiled: August 30, 1996Date of Patent: December 21, 1999Assignee: Omnova Solutions Inc.Inventor: Michael J. Hubbard
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Patent number: 6001442Abstract: A roll towel for use in the drying of hands in the lavatory setting is provided. The roll towel includes at least two segments of textile material which include at least 60 percent polyester fiber. The two segments of textile material are spliced together by an ultrasonically formed seam. The seam is made up of a series of bonding points offset from one another by nonbonded segments.Type: GrantFiled: November 8, 1996Date of Patent: December 14, 1999Assignee: Milliken & CompanyInventor: James Nelson Rockwell, Jr.
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Patent number: 5997973Abstract: A barrier membrane for use with articulating mechanical devices includes hinges formed along preferred folding lines. The hinges encourage the membrane to fold in a predetermined manner in response to articulation of the mechanical device. In a preferred embodiment, the membrane is composed of flexible outer thermal layers encasing rigid panels that are spaced apart from each other at the hinges.Type: GrantFiled: November 18, 1997Date of Patent: December 7, 1999Assignee: Hughes Electronics CorporationInventor: Daniel M. Bianca, Jr.
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Patent number: 5972467Abstract: The present invention relates to a pressure-formed bamboo sheets or bars composed of bamboo materials having a reduced variation in fiber density. A bamboo is split in the peripheral direction into a plurality of long bamboo slices, then the long bamboo slices are subjected to heat mothproofing. The heat-mothproofed bamboo slices are separated under pressure into a plurality of extra-fine bamboo slivers and are coated with resin until one complete bamboo sheet or bar is obtained.Type: GrantFiled: July 23, 1998Date of Patent: October 26, 1999Inventor: Kenji Washo
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Patent number: 5958557Abstract: A contoured panel section for a radome for use with a center frequency corresponding to a wavelength equal to .lambda., the panel section comprising a solid body portion of a thickness which is an integral multiple of .lambda./2 and which has opposing first and second ends for interconnecting with corresponding second and first ends, respectively, of a mating panel section, wherein a combined thickness of the first and second ends is equal to the thickness of the body portion. The panel section is preferably formed of thermoplastic material having a high dielectric constant and is thermoformed using a double mold.Type: GrantFiled: December 8, 1997Date of Patent: September 28, 1999Inventor: Menachem Naor
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Patent number: 5955173Abstract: The welding rod used to weld the surface covering has a laminate structure in which a print layer is disposed between a first thermoplastic layer and a second transparent thermoplastic layer. Preferably the welding rod is in the form of an elongated element having a half-round cross-sectional shape. The welding rod is used to join two pieces of thermoplastic sheeting, particularly flooring, together. If the welding rod has a pattern similar to the printed pattern of the sheeting the resulting surface covering looks seamless.Type: GrantFiled: April 25, 1997Date of Patent: September 21, 1999Assignee: Armstrong World Industries, Inc.Inventors: Richard H. Balmer, Donald L. Kurtz
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Patent number: 5940962Abstract: One or more specific wires is placed at the middle of the wire harness cross section with double-sided adhesive tape between the specific wires and the other wires surrounding these core wires. One side of the double-sided adhesive tape adheres to these core wires while the other side adheres to the other wires surrounding the core wires. The double-sided adhesive tape thus positions and holds both the selected core wires and the surrounding other wires. A single-sided adhesive tape can be also used.Type: GrantFiled: March 11, 1994Date of Patent: August 24, 1999Assignee: Sumitomo Wiring Systems, Ltd.Inventors: Noriyasu Shima, Nobuyoshi Ohtani, Haruhiro Mutoh
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Patent number: 5935671Abstract: A sweat-absorbing, disposable hygienic insert having a permeable inner film in contact with the foot, an outer film, and an absorbent layer intermediate the inner and outer films. The inner film is provided with a plurality of openings produced without removal of material. The absorbent layer has a flexible hygienic pad including absorbent material, hygienic additives and treatment additives. The outer and inner films are attached to one another at their edges, and are attached by at least one bond which passes through the hygienic pad, the bond located inside a boundary defined by the attached edges of the outer and inner films.Type: GrantFiled: August 26, 1997Date of Patent: August 10, 1999Inventor: Olivier Lhuillier
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Patent number: 5919539Abstract: A method for ultrasonically joining flashspun bonded polyolefin sheets and a seam generated by the method is provided. The method includes the steps of overlapping at least two polyolefin sheet edges, and connecting the overlapped edges by feeding the overlapped portions between an ultrasonic horn and a patterned backup roll. The connected first and second sheet edge portions have a tensile strength across the overlapped and welded portion that is at least 75% of the tensile strength of the sheet material joined. The seam is generated with just one pass between the ultrasonic horn and the patterned backup roll.Type: GrantFiled: February 12, 1996Date of Patent: July 6, 1999Assignee: E. I. du Pont de Nemours and CompanyInventors: Benyoussef Y. Bisbis, Ernst Johann Hauer
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Patent number: 5906873Abstract: A puncture, pierce, and cut resistant fabric comprised of a plurality of sheets of solid objects arranged in a repeating pattern. The solid objects are connected so that they are slideable relative to one another. Each sheet is in a stacked arrangement with the other sheets and are slideably interconnected to one another. Rivets are placed through apertures formed in or between the solid objects to hold the fabric together and to provide the slideable interconnection between the sheets. An interconnecting material interconnects the sheets of solid objects. An interconnecting material of elastomer returns the sheets from a stretched position to a compressed position. The fabric is formed with a means for limiting the movement of the solid objects relative to one another a predetermined amount, such as an elastomeric material inherently stretchable to a predetermined limit. The fabric is twistable, bendable, and stretchable.Type: GrantFiled: May 27, 1997Date of Patent: May 25, 1999Assignee: Higher Dimension Medical, Inc.Inventor: Young Hwa Kim
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Patent number: 5897936Abstract: A cushion assembly (26) having premolded first and second skins (10 and 12). The first and second skins having first and second ends longitudinally spaced by a top and bottom edge surface. The cushion assembly also includes an elastic attachment (16) bonding the first and second skins together to form a watertight seal therebetween. The elastic attachment having a substantially circular cross-section. First and second indentations (28) are formed in the second skin. The first mounting indentation is formed a predetermined distance from the first end of the cushion assembly. The second mounting indentation is formed a predetermined distance from the second end of the cushion assembly. Each mounting indentation having an O-ring (44) positioned around the mounting indentations to reinforce the mounting indentations.Type: GrantFiled: July 7, 1998Date of Patent: April 27, 1999Assignee: Mantec Services CompanyInventor: LaMar D. Havens
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Patent number: 5896903Abstract: A method of fabricating bamboo slats for bamboo blinds, including the steps of: i) cutting bamboo wood into bamboo strips subject to a predetermined length; ii) removing the skin and joints from both sides of the bamboo strips, then boiling the bamboo strips in a diluted hydrogen peroxide solution to prevent decay, and then polishing the bamboo strips after drying; iii) bonding the bamboo strips into a rectangular bamboo plate, then polishing the bamboo plate thus obtained; iv) splitting the polished bamboo plate thus obtained into raw bamboo slats subject to a predetermined thickness, then polishing the bamboo slats, and then coating the bamboo slats with a base coating and then with a face coating; v) punching two punch holes on the bamboo slats thus obtained for the insertion of a pull cord so that the finished bamboo slats thus obtained can be assembled with a pull cord into a bamboo blind.Type: GrantFiled: April 7, 1998Date of Patent: April 27, 1999Inventors: Feng-Yuan Chen, Ming-Chi Cheng
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Patent number: 5891541Abstract: A continuous reinforced composite material, including a first sheet with at least two polymer layers and a first fabric layer operatively coupled therebetween. The first sheet having at least one border where at least some of the fibers of the first fabric layer are continuous thereby having no free ends at the border. The composite material further includes a second sheet with at least two polymer layers with a second fabric layer operatively coupled therebetween. The second sheet having at least one border where at least some of the fibers of the second fabric layer are continuous thereby having no free ends at the border. The composite material further includes a seam wherein the borders of the first sheet and second sheet overlap and are operatively coupled to one another.Type: GrantFiled: June 18, 1996Date of Patent: April 6, 1999Assignee: Reef Industries, Inc.Inventor: Lyndell Kyle Wynne
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Patent number: 5888602Abstract: Flat rubber sheets are joined together at their primed surfaces utilizing an adhesive tape composition which features at least one EPDM rubber and will provide a long-term, water-tight barrier. The adhesive tape composition is a solventless, preformed, tacky composition comprising a) at least one crosslinkable EPDM rubber, b) a filler, either of the reinforcing or semi-reinforcing variety, c) one or more compatible tackifiers, d) a softener, and lastly, e) a cure system for the rubbery polymer. The tape composition itself has excellent ozone, moisture, weathering and heat aging resistance as well as superior low temperature properties.Type: GrantFiled: August 14, 1996Date of Patent: March 30, 1999Assignee: Bridgestone/Firestone, Inc.Inventors: James A. Davis, Chester T. Chmiel, Brian S. Alexander
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Patent number: 5885679Abstract: An improved joining structure for a waterproof fabric composed of a base fabric with a soft (elastomeric) resin film adhered thereon is provided. The joining structure is formed in a welt seam in which a hot-melt resin adhesive layer is interposed as a part of intermediate layers of the structure. The joining structure has properties of (1) bond strength .gtoreq.25 kg/25 cm width, (2) bending stiffness .ltoreq.20 gf.multidot.cm.sup.2 /cm and (3) water resistance after rubbing 1,000 times according to Scott shape method .gtoreq.800 mm H.sub.2 O.The joining structure can be formed by a method including joining the waterproof fabrics to form a welt seam with a hot melt resin layer put between and following that applying a high-frequency welding to the welt seam portion at a condition with an insulating elastic sheet interposed between the welt seam portion and electrode means to cause the hot-melt resin to be melted.Type: GrantFiled: June 27, 1997Date of Patent: March 23, 1999Assignee: Asahi Kasei Kogyo Kabushiki KaishaInventors: Masaharu Yasue, Masami Kamiya
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Patent number: 5882752Abstract: A wrapping pipe for a bundle of hollow fibers comprises a plastic sheet welded at its opposing edges by ultrasonics and having no difference in level of the inner surface.Type: GrantFiled: March 31, 1997Date of Patent: March 16, 1999Assignee: Nissho Corp.Inventor: Atsushi Yoneda
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Patent number: 5874137Abstract: An improved method is described for the fusing, joining or seaming of cellulosic materials. The method utilizes a solution of selected organometallic compounds or metal oxides to rapidly crosslink opposing, overlapping cellulosic surfaces to provide secure seams. Enhanced seam strength is achieved by a subsequent moisture treatment. The tubular cellulosic casings are well-suited for the manufacture of sausages and sausage-like products. The seams according to this invention have exceptionally high shear strength and wet strength.Type: GrantFiled: May 29, 1997Date of Patent: February 23, 1999Assignee: Kraft Foods, Inc.Inventors: Norman C. Abler, Zbigniew S. Borkiewicz, Donald E. Lucke
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Patent number: 5874146Abstract: The invention provides an improved method of vibration welding of thermoplastic joints. Such welding is conducted by vibrating two fiber reinforced thermoplastic parts under pressure along their common interface to generate frictional heat to melt and fuse their surfaces together. Fibers from at least one surface penetrate both into the weld and into the other surface. As a result, the welded, fiber reinforced thermoplastic surfaces have increased tensile strength than heretofore achievable. Vibration welds of reinforced thermoplastic surfaces according to this invention achieve a maximum tensile strength as high as about 120% of a weld formed by the unreinforced surfaces of corresponding thermoplastic materials.Type: GrantFiled: November 1, 1996Date of Patent: February 23, 1999Assignee: AlliedSignal Inc.Inventors: Valeriy Kagan, Caroline Bednarczyk, Siu-Ching Lui, Gregory R. Smith
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Patent number: 5855978Abstract: A lightweight multilayer heat reflective concrete cure blanket having a moisture-impervious top outer layer, a moisture impervious bottom outer layer, and the top and bottom layers sealingly connected to each other at the boundaries of the layers to form a moisture impervious chamber between the first and second layers. The chamber includes at least one insulative layer therein, and a heat reflective material is applied to an outer surface of the bottom layer to reflect heat emanating from the concrete when the blanket is placed over the concrete. A protective heat permeable layer is applied over the heat reflective material to protect the heat reflective material from chemicals and dirt in the concrete. In a further embodiment, a second heat reflective material is applied to an inner surface of the upper layer to reflect additional heat which radiates from the concrete through the insulative layer and back towards the concrete.Type: GrantFiled: May 16, 1997Date of Patent: January 5, 1999Assignee: Midwest Canvas Corp.Inventor: Gary Handwerker
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Patent number: 5851619Abstract: A hollow and cylindrical laminated molded product which is constituted by mutually overlapped joining of edge sides in a longitudinal direction of at least one or more elongated laminated articles formed by layered lamination of fiber-reinforced thermoplastic resin plates containing reinforcing fibers of not less than 30% and not more than 85% in volume content, and a method of producing the above-mentioned laminated molded product using a simple molding tool.Type: GrantFiled: May 31, 1994Date of Patent: December 22, 1998Assignee: Mitsui Chemicals, Inc.Inventors: Hideo Sakai, Kojiro Motai, Satoru Kishi, Katsuyuki Morita, Nobuyuki Hosoyama, Hiroshi Tanabe
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Patent number: 5851613Abstract: An essentially homogeneous, water-resistant, water-absorbent rod, containing a cohesive spiral winding of water-resistant, water-absorbent sheet material, in which the rod can absorb at least 50% by weight of water when placed in water at 23.degree. C. for one minute. Methods for fabricating and using this rod are also described.Type: GrantFiled: March 3, 1997Date of Patent: December 22, 1998Assignee: Brandeis UniversityInventor: Daniel Perlman
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Patent number: 5849133Abstract: A low VOC cleaner/primer for EPDM and butyl roofing and waterproofing membranes. Highly volatile solvents are replaced with a carefully chosen petroleum oil and a blend of hydrocarbon resin and partially cross-linked halo-butyl rubber. The cleaner/primer contains halo-butyl rubber, a high softening point resin tackifier, a low viscosity, high volatility petroleum oil and a curing agent. When applied to a dust covered membrane the cleaner/primer effectively displaces dust and leaves behind a primer film which is conducive to adhesive bonding by either splicing tape or solvent based adhesive. When applied in a thin coating to metal surfaces the cleaner/primer effectively primes the metal to enhance the adhesion of butyl rubber based splicing tape or solvent based butyl adhesives.Type: GrantFiled: August 15, 1996Date of Patent: December 15, 1998Assignee: Carlisle Companies IncorporatedInventors: Ronald Lynn Senderling, Laura E. Gish
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Patent number: 5846629Abstract: A continuous strip of generally rectangular body portion which is foam filled can be serpentinely wrapped around the handle or steering wheel of a tool or vehicle to isolate the transmission of high frequency vibrations from the user's hands. This will significantly reduce the incidence of occupational disabilities associated with the use of these tools and hand steered vehicles.Type: GrantFiled: May 31, 1996Date of Patent: December 8, 1998Assignee: Lord CorporationInventor: James T. Gwinn
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Patent number: 5843552Abstract: A sealing tape for sealing linear seams formed by adjacent substrate sheets comprises two laterally spaced linear strips interconnected with an intervening linear center strip. The center strip comprises a soft, pliable, adhesive sealant material adapted to flow into the substrate seam upon application of heat and pressure to the sealing tape. The laterally spaced side strips are dimensionally stable and comprised of a tacky elastomeric compound adapted to adhere to the substrate under applied heat and pressure.Type: GrantFiled: June 1, 1993Date of Patent: December 1, 1998Assignee: Bridgestone/Firestone, Inc.Inventor: H. Alan Karrfalt
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Patent number: 5840378Abstract: An endless woven fabric for condensing paper material and a method for forming such an endless fabric which removes ink and other extraneous substances from the aqueous solution of reclaimed paper material. On the endless fabric formed by weaving plastic monofilaments, an antiflexing part, 30-50 mm in width, is provided on at least one end of the selvage in the direction of width by causing thermoplastic resin to fill not less than 85% of an empty space in the endless woven fabric. Further, a guide ridge of thermoplastic resin is formed by causing thermoplastic resin to fill an empty space in the end parts on the running surface of the endless fabric, and is welded with the antiflexing part integrally. Platelike reinforcing strips are formed in a length nearly equal to the width of the endless fabric. The strips are extended between the opposite ends of the endless fabric by causing thermoplastic resin of the strips to fill not less than 85% of an empty space in the endless fabric.Type: GrantFiled: December 12, 1996Date of Patent: November 24, 1998Assignee: Nippon Filcon Co., Ltd.Inventors: Hiroyuki Nagura, Takehito Kuji
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Patent number: 5827586Abstract: A packaging container for chemicals such as pesticides and the like and a laminated film for forming said container, wherein the inner layer of the laminated film is constituted of an inner bag made of a water-soluble polymer film and the outer layer of the laminated film is constituted of an outer bag made of a water-insoluble film, and at least in the seal part of the container, films constituting inner layer are bonded to each other and additionally the film constituting inner layer and the film constituting outer layer are bonded to each other, and the film constituting inner layer and the film constituting outer layer are releasable from each other.Type: GrantFiled: December 13, 1996Date of Patent: October 27, 1998Assignee: Ciba-Geigy Japan LimitedInventors: Ryo Yamashita, Kenichi Kitagaki, Takahiro Matsubara, Mikio Takenaka
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Patent number: 5820959Abstract: A corrugator fabric comprising a first basecloth having a first staple fiber layer secured to the lower face thereof and a second staple fiber layer secured to the upper face thereof, a second basecloth having a lower face secured to the second staple fiber layer and optionally the first basecloth, a third staple fiber layer secured to the upper face of the second basecloth, a jointing body to form a seam for said fabric and a seam flap including at least one basecloth covering said jointing body.Type: GrantFiled: January 28, 1997Date of Patent: October 13, 1998Assignee: Scapa Group PLCInventor: Ronald Whittaker
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Patent number: 5814391Abstract: The present invention is a thermoplastic panel or piece having a resilient injection molded portion. The panel or piece of the present invention may be used in a variety of applications such as to provide sealing ends on thermoplastic panels or to create resiliently closable passages in thermoplastic panels through which wires and other objects may be passed while maintaining an even surface appearance of the baseboard panel. Other uses include attaching one or more thermoplastic pieces together.Type: GrantFiled: January 3, 1996Date of Patent: September 29, 1998Assignee: Crane Plastics Company Limited PartnershipInventors: Herbert Hutchison, Paul R. Pelfrey, Byron Rose
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Patent number: 5799708Abstract: A papermaker's fabric includes a system of machine-direction (MD) yarns interwoven with a system of cross-machine direction (CD) yarns. The MD yarns are pairs of a first MD yarn and a second MD yarn. The first and second MD yarns are of a substantially rectangular cross section having identical width and thickness. The first and second MD yarns of each pair weave side-by-side as a single yarn with the CD yarns through the fabric. The CD yarns are of circular cross section. The fabric has a permeability to air less than 150 cubic feet per minute per square foot at 0.5 inch H.sub.2 O-pressure.Type: GrantFiled: October 11, 1996Date of Patent: September 1, 1998Assignee: Albany International Corp.Inventor: Michael J. Josef
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Patent number: 5795638Abstract: An arrangement for the attachment of a paper web leading edge on a paper supply roll utilizes a rapidly setting material, such as a hot melt adhesive in the form of beads, drops or dots to attach the leading edge of the first paper web layer to the second layer. The drops or beads may bridge the junction of the leading edge with the second layer. Strings or threads, which are attached to the dots of the rapidly setting adhesive, may bridge the juncture.Type: GrantFiled: July 14, 1995Date of Patent: August 18, 1998Assignee: Koenig & Bauer-Albert AktiengesellschaftInventors: Klaus Walter Roder, Hartwig Horst Trutschel
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Patent number: 5792297Abstract: The tabbed edge of a divider sheet has at least one strip releasably attached thereto. The strip helps the printer (or copier) sense the sheet when being fed strip end first or last (landscape direction) into the printer or copier. When fed in the portrait direction, the strip guides the sheet along the feed tray guides thereby preventing skewing of the sheet. After the printer or copier has printed the desired indicia on the tabs and/or body of the sheet, the strip is removed from the sheet and discarded. The strip can be attached to the sheet with adhesive or by a microperforation line.Type: GrantFiled: August 16, 1996Date of Patent: August 11, 1998Assignee: Avery Dennison CorporationInventors: Jeffrey C. Hunter, Sonia Owen, Gustav Allen Ray
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Patent number: RE36458Abstract: Vinyl heat welding rod for seam sealing vinyl resilient flooring, whether in sheet or tile form, are used to obtain a homogeneous, monolithic appearing surface. This rod is specifically made to duplicate the appearance of the flooring material. For a chip-image flooring structure, a sheet of multicolored chips having a similar, but different formulation from that of the flooring material is prepared and the sheet is cut into suitable strips, heat pressed in a rod mold, end adhered or further molded to form the desired length, and used as a vinyl heat welding rod for sealing seams in flooring. Thus, the chip pattern is evident in the seam area and does not appear different when compared to the adjacent surface.Type: GrantFiled: August 15, 1997Date of Patent: December 21, 1999Assignee: Armstrong World Industries, Inc.Inventors: Edwin J. Quinn, Manuel A. Velez, Richard M. Ringer, Michael E. Buckwalter