Patents Examined by J. Weddington
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Patent number: 5180614Abstract: The supple sheet according to the invention, which is resistant to tearing and bursting, has a low water- or other liquid-absorbing power, controlled porosity and is printable, comprises:at least cellulosic fibers,optionally synthetic fibers,at least one binder,at least one moisture-retaining agent in a proportion less than about 20% by dry weight of the sheet,at least one sizing agent.The invention finds an application in sterilizable packages.Type: GrantFiled: January 24, 1990Date of Patent: January 19, 1993Assignee: Arjomari EuropeInventor: Jean-Yves Escabasse
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Patent number: 5175075Abstract: Resist (402) is exposed by a beam of positrons (320) is an apparatus (300) similar to an electron beam lithography machine.Type: GrantFiled: November 30, 1989Date of Patent: December 29, 1992Assignee: Texas Instruments IncorporatedInventors: Gary A. Frazier, Keith Bradshaw
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Patent number: 5158819Abstract: A soft, silky, cloth-like polymeric web exhibiting either patterns of microapertured or microbubbled surface aberrations, said webs further including a contrasting visually discernible pattern which imparts an embossed appearance to at least one surface thereof. Such polymeric webs may be either fluid-pervious or fluid-impervious, as desired, depending upon the particular end use. In a particularly preferred embodiment, the visually discernible pattern comprises a regularly repeating pattern which imparts an improved aesthetic appearance to the webs. Method and apparatus for producing such polymeric webs are also disclosed.Type: GrantFiled: June 29, 1990Date of Patent: October 27, 1992Assignee: The Procter & Gamble CompanyInventors: William H. Goodman, Jr., William I. Mullane, Jr., Bruce F. Perry, Gary G. Trout
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Patent number: 5156942Abstract: An electron beam imaging system (10) includes a photoemitter plate (12). An optical image beam (15) is directed through a pattern mask (18), which is imaged onto the photoemitter (12). The photoemitter (12) emits electrons from those unmasked regions illuminated by the optical image beam, emitting an extended-source electron beam that carries the mask image. The extended-source electron beam is focused (34) onto a device under fabrication (40), providing a single-stage electron lithographic patterning function. The optical source (16) is chosen so that the optical image beam energy is nearly identical to the work function for the photoemissive coating (14) of the photoemitter (12). As a result, the photoemitter (12) emits electrons with substantially zero kinetic energy, allowing the emitted electrons to be accelerated through the electron beam focusing elements (34) with very nearly identical electron velocities, thereby minimizing chromatic aberrations.Type: GrantFiled: July 11, 1989Date of Patent: October 20, 1992Assignee: Texas Instruments IncorporatedInventors: Thomas J. Aton, Denis F. Spicer
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Patent number: 5154994Abstract: A method of and apparatus for forming a volume type phase hologram comprising the steps of, after exposure of a holographic material comprising a polymeric matrix having a radiation active substance associated therewith to an interference pattern of radiation, dipping the pattern-wise exposed holographic material in a swelling solution consisting of a first solvent which can act as a good solvent for the polymer of the matrix and a second solvent which can act as a poor solvent for the polymer and has a higher boiling point than that of the first solvent, and then pulling the swollen holographic material up from the swelling solution, whereby uniformly developed holograms having a large size and high qualities can be easily produced by a simple production process.Type: GrantFiled: October 4, 1989Date of Patent: October 13, 1992Assignee: Fujitsu LimitedInventors: Yasuo Yamagishi, Takeshi Ishitsuka, Motoaki Tani, Youko Kuramitsu
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Patent number: 5149608Abstract: An emulsion covered photo printing plate for use in printing an echant resist pattern on a light sensitive etchant resist located on a metal web covered with an etchant resist wherein the emulsion layer contains an exterior master pattern separated from an interior master pattern by a strip line with the interior master pattern having optically clear spacers located on top of the emulsion layer opaque projections and the nonopaque emulsion layer and the exterior emulsion layer having clear spacers located on top of the exterior emulsion layer with the area of the strip line being substantially devoid of spacers to provide evacuation channel past the strip line between the exterior master pattern and the interior master pattern.Type: GrantFiled: June 9, 1989Date of Patent: September 22, 1992Assignee: BMC IndustriesInventors: Dean T. Deibler, Joseph A. Marcanio
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Patent number: 5135787Abstract: An iced food shipping container and a novel aqueous liquid absorbing pad for use therein are provided. The pad comprises superabsorbing polymer particles distributed in a polyester carded web contained between hydrophilic fabric outer layers. The pad can absorb more than 100 times its dry weight in water and other aqueous liquids that form during iced food shipment.Type: GrantFiled: August 14, 1990Date of Patent: August 4, 1992Assignee: E. I. Du Pont de Nemours and CompanyInventor: Thomas I. Bair
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Patent number: 5128195Abstract: A woven core structure (2) includes a first and second face sheets (4, 6) with inner surfaces (16, 18) facing one another. First and second sets of corrugated ribbons (8, 10) are positioned between the face sheets. The ribbons have nodes (12, 14) which are secured to the inner surfaces of the face sheets. The first set of ribbons extend transversely to, and preferably perpendicular to the second set of ribbons. The first and second sets of ribbons are woven such that the nodes of the first set of ribbons are spaced apart from and generally opposite the nodes of the second set of ribbons. This arrangement permits an increase in the node contact area (26) between the nodes and the face sheets to enhance the bond strength between the ribbons and the face sheets and to increase the skin deformation strength of the structure. The angle between the ribbons and the face sheets can be adjusted to optimize shear strength versus tension/compression strength.Type: GrantFiled: March 13, 1990Date of Patent: July 7, 1992Assignee: Hexcel CorporationInventor: Andreas G. Hegedus
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Patent number: 5124238Abstract: A method of photolithographically patterning a layer of a dielectric composition including a photosensitive polyimide provides patterned dielectric features that have vertical wall profiles that are free of distortions normally associated with high temperature production conditions and shrinkage of the dielectric composition. The method is useful in the production of integrated circuits and high density multiconnect structures.Type: GrantFiled: December 20, 1990Date of Patent: June 23, 1992Assignee: The Boeing CompanyInventors: Kishore K. Chakravorty, Chung-Ping Chien
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Patent number: 5122440Abstract: Photosensitive polyimides used in microelectronic structures are cross-linked without exposing the associated microelectronic structures to elevated temperatures that can lower the process yield and reduce the reliability of the microelectronic structures. The photosensitive polyimides are cured by exposing them to deep ultraviolet radiation that has a spectral output effective to crosslink the polyimide. The cross-linking hardens the polyimide and renders it insoluble in solvents such as photoresist strippers.Type: GrantFiled: May 7, 1990Date of Patent: June 16, 1992Inventor: Chung-Ping Chien
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Patent number: 5116704Abstract: A barrier rib forming method for a PDP including a process of forming an emulsion layer as a filmed deposition upon a glass substrate having transparent electrodes thereon. Exposing the film to ultraviolet rays to produce electrodes with a proper pattern of an emulsion layer thereon. Printing, drying and heating a glass paste deposited on said emulsion. Ultrasonically vibrating the glass substrate to remove the emulsion layer and glass paste from the glass substrate.Type: GrantFiled: September 6, 1989Date of Patent: May 26, 1992Assignee: Samsung Electron Device Co., Ltd.Inventor: Ki-Duck Kwon
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Patent number: 5116652Abstract: Medical tubing is extruded from a composition of a divalent metal ionomer, polyamide and polyurethane, preferably in the ranges of 60-80% of ionomer, 10.gtoreq.25% polyamide and 10-20% polyurethane. After extrusion the tubing may be sterilized with ethylene oxide or gamma irradiation. The tubing is substantially kink-resistant and the degree of stiffness and mechanical strength can be adjusted by varying the amount of polyamide and polyurethane so that the tubing can efficiently function as a catheter.Type: GrantFiled: October 13, 1989Date of Patent: May 26, 1992Assignee: Abbott LaboratoriesInventor: Bernard G. Alzner
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Patent number: 5114768Abstract: A solid surface that is exposed to protein solutes in use, such as medical implants or capillary tubes useful in capillary zone electrophoresis, is defined by or carries a polymer. An interfacial layer is covalently bound to the polymer and functions to reduce interactions between the surface and protein solutes. The interfacial layer includes either a hydratable amphoteric phase or a plurality of halogen atoms bound in the interfacial layer through at least one heteroatom.Type: GrantFiled: April 11, 1990Date of Patent: May 19, 1992Assignee: Hewlett-Packard CompanyInventor: Sally A. Swedberg
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Patent number: 5114776Abstract: A corrugated sheet formed from a thermoplastic polymer is disclosed. The sheet has a plurality of fluid flow passages through each corrugation. At least one slope, and preferably both slopes, of each corrugation has a plurality of slits in side-by-side arrangement extending through the sheet, with the fluid flow passages being formed by displacement of the thermoplastic polymer between each pair of slits relative to the thermoplastic polymer between the pairs of slits adjacent thereto. One example of use of the corrugated sheet is in a panel heat exchanger, to cause turbulence in fluid passing through the heat exchanger. The preferred thermoplastic polymer is polyamide.Type: GrantFiled: June 28, 1990Date of Patent: May 19, 1992Inventor: Anthony J. Cesaroni
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Patent number: 5112724Abstract: An electron beam lithography method with multiple low-dose scans by an electron beam (320) exposes a resist (402) pattern.Type: GrantFiled: November 30, 1989Date of Patent: May 12, 1992Assignee: Texas Instruments IncorporatedInventor: Keith Bradshaw
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Patent number: 5102743Abstract: A honeycomb body, especially a catalyst carrier body with a preferably round, oval or elliptical cross section, includes a jacket tube and a stack of at least partly structured sheet-metal layers being intertwined in different directions in the jacket tube. The stack has a given length dimension and a given width dimension. At least one of the sheet-metal layers has a greater thickness over at least part of at least one of the given dimensions than others of the layers. The at least one sheet-metal layer having a greater thickness is formed of thicker sheet metal than the others of the layers or it is formed of a plurality of identically structured metal sheets resting closely against one another.Type: GrantFiled: August 8, 1990Date of Patent: April 7, 1992Assignee: Emitec Gesellschaft fur Emissionstechnologie mbHInventors: Wolfgang Maus, Helmut Swars
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Patent number: 5091230Abstract: The tube, composed of a structural portion (1) of composite fibers encapsulated with thermosetting matrixes playing the part of a binder and obtained by filament winding, is provided with at least one inner coating (2) of a fibrous composite material impregnated with a thermoplastic binder, which is directly adjacent to the tubular portion formed by the structural portion (1) with the thermosetting binder.Application to oil production tubings.Type: GrantFiled: April 12, 1990Date of Patent: February 25, 1992Assignees: Aerospatiale Societe Nationale Industrielle, Institut Francais du PetroleInventors: Jean-Francois Fuchs, Jean-Louis Tisne, Pierre Odru
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Patent number: 5087490Abstract: A method for impregnating a shaped ceramic material with an impregnation liquid, comprising the steps of placing the shaped ceramic material in the impregnation liquid, and applying an impregnation pressure to the impregnation liquid through a pressure transfer liquid so that the shaped ceramic material is impregnated with the impregnation liquid.Type: GrantFiled: April 17, 1990Date of Patent: February 11, 1992Assignee: Toshiba Ceramics Co., Ltd.Inventors: Kazuo Ito, Shuitsu Matsuo, Yasumi Sasaki
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Patent number: 5084311Abstract: A technique for fabricating a patterned conductor on the inner surface of a transparent tube comprises providing a source of conductive material inside a hollow tube and directing actinic radiation onto the tube wall where the deposition of a conductive pattern is desired to deposit conductive material thereon. That conductive deposit may be thickened by subsequent electroless or electroplating. The result is an improved magnetic resonance sensor comprising a hollow tube having "flat" conductor coils disposed on its interior surface.Type: GrantFiled: December 28, 1988Date of Patent: January 28, 1992Assignee: General Electric CompanyInventors: Yung S. Liu, Renato Guida
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Patent number: 5084314Abstract: A refrigerant transporting hose including a polyamide resin innermost layer, at least one intermediate rubber layer positioned radially outwardly of the innermost layer, a reinforcing fiber layer positioned radially outwardly of the intermediate rubber layer or layers, an outer tube which is positioned radially outwardly of the fiber layer and has at least one layer including an outermost layer, and at least one phenolic resin layer formed of a phenolic resin and having a total thickness within a range of 5-100 .mu.m. Each phenolic resin layer is provided at a corresponding one of interfaces between adjacent layers which are selected from the innermost layer, the intermediate layer or layers, the fiber layer and the layer or layers of the outer tube.Type: GrantFiled: May 29, 1990Date of Patent: January 28, 1992Assignee: Tokai Rubber Industries, Ltd.Inventors: Ichiro Igarashi, Hiroaki Ito