Subsequent To Assembly Of Laminae Patents (Class 156/253)
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Patent number: 5421942Abstract: A label-equipped web method wherein the label is die-cut from base stock constituting the sheet and held in place by a pressure-sensitive adhesive-equipped release liner, the web patch constituting the release liner having a pattern of coatings thereon including a first pattern of release material so as to leave one or two uncoated edge bands and thereafter overcoated with pressure-sensitive adhesive so as to permanently attach the liner to the sheet in the band area to resist shearing forces tending to dislodge the liner.Type: GrantFiled: August 2, 1993Date of Patent: June 6, 1995Assignee: Wallace Computer Services, Inc.Inventor: Donald J. Hoffmann
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Patent number: 5409559Abstract: A method and apparatus for continuously forming a laminated tubular body, disclosing the joining of opposite longitudinal edges of a strip of sheet material (5) to form a tubular body, extruding a hollow plastics lining member (1) within the body, expanding the hollow lining member within the tubular body to form a substantially continuous lining, pressure means (66, 67, 71, 72) for pressing the inner lining into sealing engagement with said inner surface, and cutting means (16) for cutting the continuously formed laminated tubular body into preselected lengths.Type: GrantFiled: May 12, 1993Date of Patent: April 25, 1995Assignee: Impact International Pty Ltd.Inventor: Dusan S. Lajovic
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Patent number: 5399403Abstract: A self-adhesive label comprising a multilaminar label portion, a self-adhesive laminar material extending over, and adhered by its self-adhesive surface to, the multilaminar label portion thereby to form two self-adhesive edge portions thereof on opposed sides of the multilaminar label portion, a backing of release material to which one of the edge portions is releasably adhered and an unadhesive portion which is located on the rear surface of the said one edge portion.Type: GrantFiled: February 26, 1993Date of Patent: March 21, 1995Inventor: David J. Instance
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Patent number: 5399213Abstract: A shirred fibrous casing article containing about 20% to about 30% moisture by total casing weight and composed of shirred portions spliced together and retained in an overwrap wherein a flag which identifies the splice location between the shirred portions is extended radially through the overwrap.Type: GrantFiled: February 15, 1994Date of Patent: March 21, 1995Assignee: Viskase CorporationInventor: Jeffery A. Oxley
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Patent number: 5395467Abstract: A method of producing a textile product has the steps of applying an adhesive coating to a first surface of a backing material having a first and second surface; passing a fluid towards the backing material to form a plurality of spaces through the adhesive and the backing material; and adhering the backing material to a textile fabric.Type: GrantFiled: May 9, 1990Date of Patent: March 7, 1995Inventor: James H. Rogers, Jr.
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Patent number: 5370758Abstract: A method is provided for producing plastic containers such as crates by assembling two shaped sections (7) forming opposite ends (5d and 5e) of the container along with a shaped section (1) forming the sides (5b and 5c) and the bottom (5a) thereof. Said shaped sections (7 and 1) are obtained by extruding, punching and cutting plastic material.Type: GrantFiled: September 21, 1992Date of Patent: December 6, 1994Inventors: Robert Bourjala, Pierre Giudicelli, Pierre L. Agostini
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Patent number: 5356497Abstract: A method for forming a sheet material permeable to gas and not permeable to water includes forming the sheet material by hot pressing two materials together, and discharging static electricity to the sheet material in order to form a number of apertures in the sheet material. The apertures have a size smaller than that of water particles and larger than that of gas particles such that the sheet material is permeable to gas and not permeable to water.Type: GrantFiled: May 5, 1993Date of Patent: October 18, 1994Inventor: Chi S. Lee
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Patent number: 5324371Abstract: A process and an installation for producing a drip irrigation conduit having discrete internally located emitter units bonded at axially spaced apart locations of an internal surface thereof, wherein the irrigation conduit is continuously extruded from an extrusion cross head at a first outer diameter and a first linear velocity and is drawn off through a calibrator unit to a second and lesser outer diameter at a second and greater linear velocity greater than the first linear velocity, the emitter units being continuously supplied on a carrier member which extends from within the extruder cross-head to the region of an inlet of the calibrator unit.Type: GrantFiled: June 1, 1993Date of Patent: June 28, 1994Assignee: Hydro-Plan Engineering Ltd.Inventor: Raphael Mehoudar
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Patent number: 5314552Abstract: A method of providing an assembly of thermoplastic parts, which are separable upon the application of a predetermined force, includes assembling at least two thermoplastic parts in an overlapping relation and using an ultrasonically resonant horn for cutting a plug from the wall thickness of the first part and welding the plug to the underlying second part, whereby the upper portion of the plug remains surrounded by the wall of the aperture produced responsive to the cutting of the plug. Responsive to the application of a predetermined breakaway force effective on the plug, the plug breaks away from its attachment to the second part, causing the parts to become separable. The cross-sectional area of the plug is selected to meet a predetermined breakaway force requirement.Type: GrantFiled: December 17, 1992Date of Patent: May 24, 1994Assignee: Branson Ultrasonics CorporationInventor: Thomas B. Sager
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Patent number: 5294278Abstract: A process for applying a protective self-adhesive film onto a coat-finished product having an object unnecessary to be protected by the protective self-adhesive film, which process comprises (1) the following steps: applying a perforated self-adhesive film (a) having a perforation onto the surface of the coating of the coat-finished product so that an area occupied by the object may be positioned within the perforation, applying a protective self-adhesive film onto the object, the perforated self-adhesive film (a) and such a part of the coating of the coat-finished product as not to be covered with the perforated self-adhesive film (a), and removing an unnecessary portion of the protective self-adhesive film over the perforation; or (2) the following steps: applying the protective self-adhesive film onto the object and a coating of the coat-finished product, cutting out such an unnecessary portion of the protective self-adhesive film as positioned over the area occupied by the object by use of a cylindrical cType: GrantFiled: February 23, 1993Date of Patent: March 15, 1994Assignee: Kansai Paint Co., Ltd.Inventors: Komaharu Matsui, Takeshi Eda, Mitsuo Wakimoto
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Patent number: 5285818Abstract: A flexible duct adapted to be suspended from a support and method of making same. The duct comprises a conduit of heat-sealable plastic film having a longitudinally extending fin on the conduit for suspending the conduit. The fin comprises first and second face-to-face layers of heat sealable film. The fin includes spaced apart reinforced regions which are adapted for engagement with fasteners for suspending the conduit. The reinforced regions comprise portions of the first and second layers which are heat-sealed together. According to the method, a duct is made from an elongate tube of flexible heat sealable material. The sidewall of the tube is joined to itself along a longitudinal line to define a first relatively larger tube forming a longitudinally extending conduit, and a second relatively smaller tube forming a longitudinally extending double-walled fin for suspending the duct.Type: GrantFiled: March 9, 1992Date of Patent: February 15, 1994Inventor: August H. Hummert, III
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Patent number: 5268055Abstract: A novel method and apparatus are provided for consolidating and perforating multilayer laminates by a combination of vibratory motion and impacting pressure applied by a special compacting tool preparatory to final cure.Type: GrantFiled: October 31, 1991Date of Patent: December 7, 1993Inventors: John L. Bales, Daniel A. Buchacher, Clint A. Luttgeharm, Douglas A. McCarville
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Patent number: 5258085Abstract: A process for producing a layered material in sheet or membrane form from thermoplastic foam is described. The laminated material is suitable in particular for use as a drainage sheet or membrane. To produce the membrane, the thermoplastic foam in the form of strips, lengths, shreds or the like is piled up to form a layer of uniform height and compressed and compacted at a temperature below the softening temperature of the foam. Subsequently, the compressed and compacted layer of thermoplastic foam is perforated and fused with the aid of pins which are heated to a temperature of 400.degree. to 800.degree. C., whereupon the perforated and fused layer is cooled while maintaining the compression.Type: GrantFiled: January 10, 1992Date of Patent: November 2, 1993Assignee: Huls Troisdorf AktiengesellschaftInventors: Hans-Ulrich Breitscheidel, Cosmas Lorry
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Patent number: 5252164Abstract: An SIR door and instrument panel are formed by adhering a single, unitary cover material over a preformed door insert member and separate preformed panel insert member. The insert members are sprayed with an adhesive and placed on a support member with the door insert member aligned with and raised above an opening in the panel insert member. The single, unitary cover material is laid over the insert members and vacuum formed thereabout. Thereafter, the cover material is trimmed from the door insert member. The door insert member and cover material are removed from support member. The instrument panel and supplemental impact restraint (SIR) door may thereafter be assembled.Type: GrantFiled: December 21, 1992Date of Patent: October 12, 1993Assignee: Davidson Textron Inc.Inventor: Daniel H. Mills
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Patent number: 5245932Abstract: A heat-sensitive stencil master sheet having good perforation properties, having prevented reduction in the resolution and setting-off of ink to the surface of printed matters and affording a good printed image is provided,which sheet is prepared by laminating a thermoplastic resin film on a permeable sheet of fibers wherein the sum of the clearance areas surrounded by fibers of the sheet same as or less than the area sought by a product of the primary scanning pitch of the thermal head of a heat-sensitive stencil printing device to be used, by the secondary scanning pitch thereof in the advancing direction of the sheet occupies 80% or more of the total of the clearance areas of the sheet.Type: GrantFiled: January 22, 1992Date of Patent: September 21, 1993Assignee: Riso Kagaku CorporationInventor: Mitsuru Ujiie
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Patent number: 5246520Abstract: A continuous fiber reinforced composite panel and a one-step method of molding it using a high viscosity, thermoplastic matrix. The high viscosity, thermoplastic material is in the form of fibers and the fibers are commingled with reinforcing fibers producing a dry woven matte. The dry woven matte is placed in a mold and heated under pressure around a pin mandrel forming part of the mold. The method of forming the panels is a one-step method using a two-piece mold, one-half of which includes a pin mandrel having formed thereon a plurality of permanent die pins corresponding in number to the number of holes to be formed in the perforated composite panel. The other half of the mold has holes or cavities formed therein corresponding in number to the number of pins and into which these die pins are received when the mold is closed. The method simply is to place the dry woven matte over the die pins in the mold and to then close the mold. The mold is placed in a press and heat and pressure is applied to the mold.Type: GrantFiled: February 12, 1991Date of Patent: September 21, 1993Assignee: Auto-Air Composites, Inc.Inventors: John F. Scanlon, David M. Moorehouse
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Patent number: 5244523Abstract: A bandage for removably retaining a replaceable dressing against a patient's skin including a tape having an adhesive inner surface with pressure-sensitive adhesive thereon and a nonadhesive outer surface, a base portion on the tape for adhesive securement to a patient's skin, a tab formed integrally with the base portion by a folded-over portion of the tape, a first opening in the base portion for placement over a wound on the patient's skin for receiving the dressing, a second opening in the tab exposing an adhesive portion of the inner surface of the tape for receiving and adhesively holding a pad which overlies the first opening when the tab is in a closed position, and cooperating hook and pile fabric on the tab and the base portion containing the first opening for selectively securing the tab to the base portion.Type: GrantFiled: February 12, 1992Date of Patent: September 14, 1993Inventor: Dennis R. Tollini
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Patent number: 5240540Abstract: A method for producing a filter element has three steps. In first step, a filter body including at least one first passageway and at least one second passageway or clearance extends closely and substantially parallel to the first passageway and communicate with first hole through a filter material is formed. In second step, a sheet-shaped thermoplastic adhesive is arranged on one end of the filter body, the first passageway and the second passageway or clearance are open at the one end of the filter body. In third step, the sheet-shaped thermoplastic adhesive is melted by heating to close and seal an end of the second passageway or clearance at the one end of the filter body so that the passageways do not deform.Type: GrantFiled: January 23, 1991Date of Patent: August 31, 1993Assignee: Nippondenso Co., Ltd.Inventors: Noriya Matsumoto, Yoshihiko Oya, Hajime Akado, Yoshihiro Taki, Kazumi Nonoyama, Takanari Okumura
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Patent number: 5232528Abstract: Various methods are disclosed for securing a label, such as a bar code label, to a key blank. A first layer, preferably formed from any clear or solid plastic, includes indicia defining the bar code information. The first layer is welded, fused, or rivet connection to a second layer, again preferably formed from plastic, through a key opening. Alternatively, a rivet extends through the key opening and mechanically retains the first layer to the key blank.Type: GrantFiled: July 23, 1991Date of Patent: August 3, 1993Assignee: American Consumer Products, Inc.Inventors: Yury Reznickenko, George Wasko, Thomas M. Gordon
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Patent number: 5223320Abstract: A perforated sheet for the promotion of film cooling a gas turbine engine comprises two separate layers of laminate material which are placed in superposed abutting relationship. The first layer has a plurality of apertures of given cross-sectional area therein. The second layer also has a plurality of apertures therein which have larger cross-sectional areas than the corresponding apertures in the first layer. The apertures in the first layer are in fluid communication with the apertures in the second layer to form passageways through the perforated sheet. These passageways permit a cooling flow of fluid to pass through the perforated sheet so it can be discharged as a cooling fluid film along the inner surface of the perforated sheet. The apertures in each layer are independently formed to produce the passageways. The apertures can easily be machined to the desired size, shape, and angle to optimize the cooling film effectiveness for any particular application.Type: GrantFiled: May 30, 1991Date of Patent: June 29, 1993Assignee: Rolls-Royce plcInventor: John S. Richardson
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Patent number: 5221399Abstract: Materials having diverse coefficients of thermal expansion are joined together by means of an adhesive film, electrically insulative mesh structure that cures at room temperature. An adhesive film bonding technique is employed to mount a printed wiring board, having a relatively low coefficient of thermal expansion, to a thermally and electrically conductive aluminum stiffener having a relatively high coefficient of thermal expansion, while maintaining the printed wiring board electrically insulated from the aluminum stiffener. A non-adhesive plastic `release` film is initially attached to a flat support substrate. A layer of electrically insulative mesh (glass cloth) is taped onto the plastic release film. The glass cloth is then impregnated with an electrically insulative adhesive that cures at room temperature. The aluminum stiffener is then placed on the adhesive-impregnated cloth layer, which is then cut to fit, using the aluminum stiffener as a template.Type: GrantFiled: March 5, 1991Date of Patent: June 22, 1993Assignee: Harris CorporationInventors: James A. Sanborn, Janet D. Sadlon, Talmadge H. Callahan, Decosta R. Alewine, Gary Rief, Greg Jandzio
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Patent number: 5213647Abstract: An arrangement for holding together a package of boards to be used in the manufacture of printed circuits by applying glue to an edge of the package or by applying glue into holes formed in the boards.Type: GrantFiled: June 25, 1991Date of Patent: May 25, 1993Assignee: U.S. Philips CorporationInventors: Jean-Claude Chapron, Alain Sorel
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Patent number: 5174849Abstract: A lay-in ceiling panel structure, comprising a glass fiber ply, a gypsum board, and a highly perforated vinyl lamina. The ceiling panel structure having noise and sound transmission reduction coefficients in the range of 0.85 to 0.95 sabins and 0.35 to 0.39 dbs respectively. This structure also provides good fire resistance, space efficiency, and a lower surface that is washable and pleasing to the eye. In addition, the glass fiber ply is secured to the gypsum board by droplets of glue which are spaced 1 to 2 inches apart and which are applied 4 to 6 inches away from the outer periphery of the gypsum board. Applying the glue in this way allows the glass fiber ply and vinyl lamina to lay flat even if the board is warped by water leaks, humidity or age.Type: GrantFiled: January 11, 1991Date of Patent: December 29, 1992Inventor: Raymond W. Capaul
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Patent number: 5169471Abstract: A circuit board for automatically interconnecting electrical components mounted on the circuit board, comprising of a nonconducting emulsion layer sandwiched between two nonconducting outer layers. Electrical leads from electronic components are inserted through holes in one outer layer. Dispersed within the emulsion layer are conducting particles with an elongated length. The emulsion layer's melting temperature is lower than the outer layers allowing movement of the conducting particles when the temperature of the emulsion layer is above the melting temperature, and prevents movement when the temperature is below. Included with the circuit board is an electromagnetic and infrared (EIR) assembly positioned near the outer layer opposite the layer with the electronic components. The EIR assembly has an infrared source and two magnetic field generating devices. One produces a magnetic field parallel to the emulsion layer forcing the conducting particles to line up parallel to the emulsion layer.Type: GrantFiled: July 29, 1991Date of Patent: December 8, 1992Inventor: Gene W. Strasser
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Patent number: 5160572Abstract: An apparatus for manufacturing an optical memory device, which includes supplying rolls for continuously supplying a sheet-like substrate, a masking endless belt having a plurality of windows of size corresponding to the optical memory device, rolls for moving the sheet-like substrate and the masking endless belt in the same direction and at the same speed, a recording portion forming device for forming recording portions on the substrate through the masking endless belt, a guide track providing device for providing along the substrate guide tracks for guiding a light beam, and a cutting device for cutting the substrate to a predetermined size.Type: GrantFiled: July 24, 1991Date of Patent: November 3, 1992Assignee: Sharp Kabushiki KaishaInventors: Junichiro Nakayama, Kazuhiro Kimura, Hiroyuki Katayama, Kenji Ohta
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Patent number: 5122214Abstract: A laminated gasket assembly and method of making same is disclosed. The laminated gasket assembly comprises first and second sheets, each having a thin metallic layer having a thin elastomeric coating on at least one major surface, and an elastomeric layer interposed between, and joining, the sheets, with first and second thin elastomeric coatings facing outwardly in opposite directions. The gasket assembly defines at least one elevated pressure service opening therethrough. The sheets and layers are laminated and define an embossment around a service opening, with the elastomeric layer being conformed to the embossment.Type: GrantFiled: February 13, 1990Date of Patent: June 16, 1992Assignee: Fel-Pro IncorporatedInventors: Thomas O. Zurfluh, Donald J. McDowell
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Patent number: 5120384Abstract: A method for manufacturing a multilayer laminate provides in metal plates each forming a substrate apertures at positions where through holes are to be formed, fills the apertures with a synthetic resin including a first filler, and prepares prepregs to be disposed on both sides of each substrate by impregnating nonwoven fabric with a thermosetting synthetic resin containing a second filler. The metal plates forming the substrates are thereby allowed to be thicker for realizing larger capacity power supply with an improvement also in heat dissipation characteristics.Type: GrantFiled: August 7, 1991Date of Patent: June 9, 1992Assignee: Matsushita Electric Works, Ltd.Inventors: Tokio Yoshimitsu, Kouji Sato, Yoshihide Sawa
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Patent number: 5116445Abstract: A decorative emblem is formed having a front surface and an opposite back surface. A mold is placed against the back surface. Cavities in the mold are sized and shaped to conform to a desired shape of a locator lug. Flowable plastic is injected into the cavity and sets against the back surface of the emblem.Type: GrantFiled: December 21, 1990Date of Patent: May 26, 1992Assignee: Douglas CorporationInventors: John I. Doughty, Darrell W. Blauer
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Patent number: 5098500Abstract: A sheet-form material suitable as wound dressing and having enhanced moisture control properties is disclosed. This sheet-form material includes a porous sheet of absorbent, elastomeric segmented polyurethane having an open pore structure and an apertured adhesive facing on one side of the porous sheet. A liquid impermeable but water vapor permeable backing may be provided on the opposite side of the porous sheet, if desired. Also disclosed is a method for forming an apertured adhesive facing for the sheet-form material.Type: GrantFiled: February 15, 1990Date of Patent: March 24, 1992Assignee: PolyMedica Industries, Inc.Inventors: Andrew M. Reed, Ian N. Askill
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Patent number: 5073221Abstract: Magnetic stripes are applied to magnetically readable credit cards by incorporating the magnetic stripes in a cover sheet and laminating this cover sheet to a core stock sheet and then severing the laminated assembly into individual cards. The magnetic material bearing cover sheet is made by feeding the cover sheet without stripes continuously through a nip along with a plurality of tapes. Each tape is a laminate originally including a release layer, a magnetic layer, an adhesive layer, in that order, on a carrier layer. Heat and pressure applied to the nip releases the magnetic layer from the carrier layer and activates the adhesive layer to bond the magnetic layer of each tape to the original cover sheet, thus forming a stripe on the cover sheet. Distortion of the cover sheet by substantial shrinkage or wrinkling due to the heat effects resulting from the bonding operation are effectively eliminated by the use of a chill roller.Type: GrantFiled: November 22, 1989Date of Patent: December 17, 1991Assignee: Crown Roll Leaf, Inc.Inventors: Robert R. Waitts, Jeffrey P. St. Thomas
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Patent number: 5068005Abstract: A device for forming webs used for packaging containers with and without a pull-tab including, along the conveyance path of a web conveyed at a constant interval, a punch hole opening section for opening liquid-outlets, a strip tape pasting section which closes punch holes opened on a web with a wide strip tape or pastes narrow strip tape on a web having no punch holes, and a pull-tab pasting section having a pull-tab tape cutting and heating depositing member which cuts and heat-deposits a pull-tab on the web provided on the punch holes. Either a wide strip tape or a narrow strip tape is selectively supplied to the strip tape pasting section, and a pull-tab tape is supplied to the pull-tab pasting section. The punch hole opening section and the pull-tab pasting section can be inactivated. Thus, containers with and without a pull-tab can be manufactured by a single web forming device.Type: GrantFiled: November 29, 1989Date of Patent: November 26, 1991Assignee: AB Tetra PakInventors: Carl G. Lindskog, Rolf Anderson, Christer Loovv
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Patent number: 5066531Abstract: A process for hot pin perforation bonding of a plurality of lamina of thermoplastic foam sheet material to produce a controllably rigid, strong, lightweight and easily shaped cushioned foam plank; and a product as formed in that process.Type: GrantFiled: September 5, 1989Date of Patent: November 19, 1991Assignee: AmetekInventors: Warren F. Legg, Wilfred E. Willis
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Patent number: 5062911Abstract: Ceramic honeycomb structures having channels that are selectively sealed at alternate faces of the honeycomb are prepared by applying an end cap made up of green ceramic material to each face of a green ceramic honeycomb body, followed by exposing the openings of certain channels of the honeycombs through the cap at one face and exposing the remaining channels through the cap at the other face. Thereafter, the composite capped structure is fired. The honeycombs are useful in a variety of filtering, separating, or concentrating operations in which a work fluid or component thereof is intended to pass through the walls of the channels.Type: GrantFiled: December 21, 1989Date of Patent: November 5, 1991Assignee: Corning IncorporatedInventors: Leslie E. Hampton, David F. Thompson
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Patent number: 5057176Abstract: An automotive headliner comprised of a laminate of double corrugated paperboard. Perforations in all the sheets of the laminate except the back paperboard sheet improve the acoustical performance of the liner. A vapor barrier on the back sheet prevents entry of moisture into the laminate from the roof, and a layer of sound dampening material on the front face of the laminate improves the sound absorption of the laminate. The front corrugation is larger than the back corrugation. When molding the laminate it is first moisturized, then heat molded. Heat is applied until the laminate has regained its rigidity.Type: GrantFiled: October 10, 1989Date of Patent: October 15, 1991Assignee: Manville CorporationInventor: William Bainbridge
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Patent number: 5055153Abstract: A business forms assembly and method of forming is provided wherein a continuous web defines a plurality of successive form sets and wherein the web is divided longitudinally by a slit indicator line to define adjacent form parts for each set. Carbonless transfer technology is employed, such that a back side or undersurface of one form part (the upper part) is coated with carbonless microcapsules, while a front side or upper surface of the adjacent form part (the lower part) is coated with a co-reactant resin coating. The arrangement permits variable information to be printed on the adjacent form parts as the web passes through a non-impact printer. Thereafter, the web is longitudinally slit, separating the adjacent form parts which are thereafter interstacked so that the coating on the undersurface of the upper form part lies in full surface engagement with the coating on the upper surface of the lower form part. The respective form parts may then be adhesively secured.Type: GrantFiled: March 9, 1990Date of Patent: October 8, 1991Assignee: Moore Business Forms, Inc.Inventor: Michael W. Anderson
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Patent number: 5055152Abstract: The present invention relates to an easily separable laminated/perforated film for packings, that can seal the contents under transportation and storage situations and can be formed to the situation for communicating the container interior with the external side when it is to be used.This laminated/perforated film is the film which has bonded both the films in simulation by providing many perforations onto a formed film and by pressing another film which has been extruded from a film forming machine and which is still in a fused state against this perforated film, and this simulation bonding is to be achieved when the film in the fused state has invaded into the perforations of another film.Type: GrantFiled: November 29, 1989Date of Patent: October 8, 1991Assignees: Mitsubishi Monsanto Chemical Company, Nihon Tokkyo Kanri Company LimitedInventor: Hiromichi Inagaki
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Patent number: 5047200Abstract: A method of making a fire hose including the steps of extruding a tube having inner 12 and outer coverings of elastomeric material on a woven jacket made from woven synthetic textile yarns and having a weft which is unusually highly crimped. The extruded tube is placed in a confining mould or sheath having an internal diameter substantially the same as the external diameter of the hose, curing the material of the tube by internal application of heat and pressure, pressing the outer covering into tight engagement with the sheath. The sheath effectively prevents radial expansion of the hose during the curing and the outer covering is thus embossed with the surface topography of the inner surface of the sheath upon removal of the sheath. The hose thus formed has good diametral swell properties and consequently reduces the frictional forces in relation to the amount of water flowing through the hose.Type: GrantFiled: May 1, 1989Date of Patent: September 10, 1991Assignee: Angus Fire Armour LimitedInventor: Robert M. Harcourt
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Patent number: 5022940Abstract: A process and an installation for producing a drip irrigation conduit having discrete internally located emitter units bonded at axially spaced apart locations of an internal surface thereof, wherein the irrigation conduit is continuously extruded from an extrusion cross head at a first outer diameter and a first linear velocity and is drawn off through a calibrator unit to a second and lesser outer diameter at a second and greater linear velocity greater than the first linear velocity, the emitter units being continuously supplied on a carrier member which extends from within the extruder cross-head to the region of an inlet of the calibrator unit.Type: GrantFiled: September 26, 1989Date of Patent: June 11, 1991Assignee: Hydro-Plan Engineering Ltd.Inventor: Raphael Mehoudar
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Patent number: 5023751Abstract: The invention concerns a method of mass producing a tape intended to provide electrical circuits, the tape constituting an intermediate step in the production of electronic modules. The method comprises providing a metal strip (1) having openings defining a series of similar networks of conductors, each conductors being connected to the strip (1) by a bridge, and providing insulating sheets (18) having holes (19, . . . 27) and sticking these sheets to the metal strip in such a manner that the holes face the conductors. The thus-assembled strip (1) and sheets (18) constitute the tape, while the conductors with a part of the sheets define the circuits of the modules.Type: GrantFiled: June 6, 1988Date of Patent: June 11, 1991Assignee: ETA SA Fabriques d'EbauchesInventor: Jean-Marcel Stampfli
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Patent number: 5022945Abstract: An absorbent pad for meat and poultry products and the like and a method for constructing same is disclosed. The absorbent pad includes upper and lower plastic film layers, at least one of which is perforated, and an intermediate absorbent layer disposed between the layers. The intermediate absorbent layer includes a series of juxtaposed and overlapping absorbent material fibers with superabsorbent granules dispersed throughout the absorbent layer and supported by the absorbent material fibers within interstices thereof. The superabsorbent granules are capable of absorbing and suspending liquids therein while being retained and supported by the absorbent material fibers even when the absorbent material fibers have liquid therein. The upper and lower film layers are attached to one another at least partially along opposite marginal edge portions thereof to retain the absorbent layer between the upper and lower layers.Type: GrantFiled: February 20, 1990Date of Patent: June 11, 1991Assignees: Clean-Pak, Inc., Dry Forming Processes ABInventors: John C. Rhodes, Ronald R. Aljoe, Berne F. Ellers
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Patent number: 5015325Abstract: In a L-sealer for heat-sealing center-folded thermoplastic film, wherein a pair of relatively movable clamping jaws grip and heat seal the facing film webs along an L-shaped seal line, a series of perforating pins are mounted to one clamping jaw to perforate the film webs closely adjacent the seal line. The perforations allow escape of air when the film is subsequently shrunk, the close spacing of the perforations to the seal line insuring that the perforations are disposed at the side of the packaged article when the film is shrunk to minimize entry of dirt and the like.Type: GrantFiled: November 20, 1989Date of Patent: May 14, 1991Inventors: Charles J. Bennett, Billy J. Simpson, Sr.
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Patent number: 5004514Abstract: A protective book covering including a relatively long piece of sheet material and a relatively short piece of sheet material overlying the long piece, the longitudinal edges of the two sheets being sealed together. A seal and tear line extending transverse to their longitudinal edges joins the two pieces and forms a line of severance along which the pieces can be torn to produce two units, each unit having a pocket adjacent to the seal and tear line for accommodating one of the covers of a book. One of the units has a section, extending from the pocket of that unit, long enough to wrap around the spine of the book, and be secured to the other unit. The sheet material is preferably transparent plastic. The book covering can be made in a continuous manner by providing independent lengths of relatively wide and relatively narrow plastic sheet material, and placing the lengths in face-to-face contact so that their longitudinal axes extend in the same direction.Type: GrantFiled: September 14, 1989Date of Patent: April 2, 1991Assignee: Brodart Co.Inventors: Joseph S. Pugliese, Charles L. Garman
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Patent number: 5002626Abstract: A method of preparing continuous label paper from a continuous paper consisting of a label sheet coated with an adhesive on the back side thereof and a support sheet detachably adhered to the back side of the label sheet and which sheets are wider than a finished width of the continuous label paper.Type: GrantFiled: April 26, 1989Date of Patent: March 26, 1991Assignee: Toppan Moore Co., Ltd.Inventors: Motohiko Tezuka, Jiunichi Tabuchi, Yoshihide Okubo, Takeshi Kobayashi
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Patent number: 4995930Abstract: A process for the production of a film combination consisting of a perforated plastic film and a fibrous material, which are laminated together by means of the pneumatic vacuum used to perforate the film when it is in a thermoplastic condition.Type: GrantFiled: June 16, 1986Date of Patent: February 26, 1991Assignee: Lever Brothers CompanyInventors: Winfried Merz, Theo Schmidt
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Patent number: 4990201Abstract: A novel method is provided for reticulating adhesive-backed, perforated substrates. The method entails tacking a continuous sheet of viscous reticulating adhesive to one side of the substrate and then contacting the other side with heated air. The temperature of the air is regulated such that the adhesive softens and bubbles over the perforations but final cure is not initiated. The air is directed at a velocity such that the bubbles burst and the adhesive is redeposited onto the adhesive-side of the substrate.Type: GrantFiled: April 14, 1989Date of Patent: February 5, 1991Assignee: The Boeing CompanyInventor: Thomas E. Trnka
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Patent number: 4990207Abstract: This invention relates to a process for preparing fiber-reinforced thermoplastic (FRTP) molded articles comprising stacking sheet prepregs comprising unidirectionally arranged reinforcing fibers impregnated with thermoplastic resin and molding the same, and to a process for preparing FRTP molded articles by using woven reinforcing fibers in place of unidirectionally arranged reinforcing fibers. The FRTP molded articles obtained by the process of this invention have high quality and can be molded without unevenness in strength.Type: GrantFiled: May 15, 1989Date of Patent: February 5, 1991Assignee: Mitsui Toatsu Chemicals, Inc.Inventors: Hideo Sakai, Toshiyuki Nakakura, Satoru Kishi
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Patent number: 4981544Abstract: A thin static dissipative tape construction for use as a rug or runner in static sensitive areas should have a thickness of less than 1.5 mm and preferably less than 1.02 mm and be adhesively coated for application direct to the floor. The tape comprises a static dissipative layer, a conductive layer laminated thereto and a continuous pressure sensitive adhesive coating. The static dissipative layer is textured. The tape may be perforated to apply wide webs to surfaces.Type: GrantFiled: February 3, 1989Date of Patent: January 1, 1991Assignee: Minnesota Mining and Manufacturing CompanyInventor: John E. Nordale
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Patent number: 4976649Abstract: A balloon structure is comprised of two heat-sealingly connected polymeric sheets forming a gas encompassing chamber and a connected inflation stem and is characterized by a separable integral tether-defining border strip surrounding at least a portion of the chamber, whereby the tether may be separated from the body of the balloon at all but an anchor point to provide a means for restraining the balloon. Optionally, the tether defining strip portions of the sheets may themselves be heat-sealingly connected, selectively to provide a double width tether or a tubular inflatable tether.Type: GrantFiled: June 4, 1990Date of Patent: December 11, 1990Assignee: C. M. Offray & Son, Inc.Inventor: Neil Mandell
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Patent number: 4971644Abstract: A method of applying a heat activated ornamental transfer to a foraminous substrate such as a mesh shirt employs an absorbent layer to absorb portions of the transfer which cover holes in the foraminous surface. The heat activated transfer is positioned on the substrate with an absorbent material underneath the substrate. Heat and pressure is applied to the heat activated transfer causing it to bond to the foraminous substrate. This same heat and pressure also causes that portion of the transfer covering holes to bond to the absorbent material beneath the substrate. While still warm, the absorbent material is separated from the material pulling with it the portions of the transfer which cover holes. This leaves the holes clear providing an extremely pleasant aesthetic appearance.Type: GrantFiled: December 11, 1989Date of Patent: November 20, 1990Assignee: John Mahn, Sr.Inventors: John Mahn, Sr., John Mahn, Jr.
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Patent number: 4964934Abstract: A process for manufacture of a second surface optically recordable disk is disclosed. A reflective sheet of aluminum, flow process produced by precipitation of a layer of aluminum from gasified triisobutyl aluminum onto a layer of molten indium, is mated with a polymer substratum sheet. In completion of the process, an optically active layer which is applied over the reflective layer is embossed with an optically transparent polycarbonate, protective cover, the mating surface of which, may be, pregrooved and coded with data relative to address and sector codes. Covers with bonded laminae are then successively severed from the lamina sheet to yield independent second surface optically recordable media.Type: GrantFiled: February 2, 1989Date of Patent: October 23, 1990Assignee: Del Mar AvionicsInventor: David P. Gregg