Patents Examined by Ellis P. Robinson
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Patent number: 5419934Abstract: The present invention relates to multilayer coextruded thermoplastic stretch wrap films useful for the packaging or palletizing of goods. More particularly the films of this invention include at least three layers, the three layers having two outer layers and an intermediate layer positioned between said outer layers, the intermediate layer comprising a mixture of a first linear low density polyethylene and a polyolefin selected from the group consisting of homopolymers of propylene, copolymers of propylene and ethylene and mixtures thereof and at least one of the two outer layers comprising a second linear low density polyethylene. The force required to stretch the films of this invention may be controlled by the ratio of polyethylene to the selected polyolefin of the intermediate layer, by controlling the thickness of the intermediate layer relative to overall film thickness, by controlling the melt flow properties of the intermediate layer polyolefin resin or by a combination thereof.Type: GrantFiled: December 18, 1992Date of Patent: May 30, 1995Assignee: Mobil Oil CorporationInventor: Gregory M. Wilson
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Patent number: 5415904Abstract: A snap fastener (11) having a base section (14), (17) to be welded to a bag body (22) is made of a linear chain low-density polyethylene (L-LDPE) or a compound resin of the linear chain low-density polyethylene and a low-density polyethylene (LDPE) as a sub-ingredient. A packaging bag is fabricated with the snap fastener from the bag body (22) and the pair of snap fastener half-members. When the snap fastener (11) is made of a compound resin of L-LDPE and LDPE, the composition ratio between them is set at 95-60 wt %:5-40 wt %. The melt index (MI) of the compound resin is set at a range of 1-15 g/10 minutes. The packaging bag body (22) is adapted to have an inner side layer made of L-LDPE. An outer side layer adhered to the inner side layer may be made of nylon so as to form the multilayered bag body.Type: GrantFiled: April 16, 1993Date of Patent: May 16, 1995Assignee: Idemitsu Petrochemical Co., Ltd.Inventors: Toyokazu Takubo, Shigezo Yamamoto
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Patent number: 5415910Abstract: An inner layer, i.e. liner, for a generally tubular, multilayered dough container comprising a laminated web suitable for being helically wound into a tubular geometry and which includes a plurality of layers, the innermost of such web layers providing improved bonding characteristics for the liner, hence improved containment and sealing of the dough, and a container including such liner.Type: GrantFiled: June 7, 1994Date of Patent: May 16, 1995Assignee: International Paper CompanyInventor: Gary H. Knauf
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Patent number: 5413790Abstract: A thermomorphic covering layer is applied to a heat-shrinkable body of thermoplastic material, e.g. a heat-shrinking sleeve adapted to surround and seal a cable splice so that when the heat-shrinking temperature is reached, the thermomorphic covering melts to form a continuous protective layer on the sleeve. It contains glass fibers or an insecticide or microbicide to protect the sleeve against pest deterioration.Type: GrantFiled: December 3, 1992Date of Patent: May 9, 1995Assignee: Stewing GmbH & Co. KG Werk BerlinInventors: Heinz Koppe, Norbert Nicolai, Winfried Stupp
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Patent number: 5413859Abstract: A thermal protection system arrangement and method of manufacture for a carbon-carbon nose tip of a re-entry space vehicle that is expected to encounter very high heat fluxes upon re-entry into the earth's atmosphere. The arrangement includes a carbon-carbon nose tip which has a first sublimatable material infiltrated into the outer portion of the nose tip for release of thermal energy to the environment during the high heat fluxes of re-entry. A second sublimatable material which sublimates at heat fluxes materially less than that of the first sublimatable material is infiltrated into the inner portion of the nose tip so that the nose tip releases energy to the environment and erodes in a controlled manner thereby maintaining the interior of the nose tip at a desired temperature.Type: GrantFiled: October 28, 1992Date of Patent: May 9, 1995Assignee: Lockhead CorporationInventors: William E. Black, Ebrahim M. Parekh
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Patent number: 5413877Abstract: A thermal barrier and wear coating having high strength, low conductivity, a low thermal expansion coefficient and good adhesion qualities, where the wear coating is self-lubricating and has high temperature resistance, a hard wear resistant matrix, a low coefficient of friction and is easy to machine to a smooth surface. The thermal barrier is applied to the internal engine cylinder surface to reduce the heat rejection and thus reduce the need for air or liquid cooling. The self-lubricating wear coating is applied over the thermal barrier to prevent contact between the moving engine parts and the thermal barrier. The wear coating has a low friction coefficient so that it does not generate substantial additional heat and is self-lubricating to withstand temperatures up to 900.degree. C.Type: GrantFiled: September 22, 1992Date of Patent: May 9, 1995Assignee: Moller International, Inc.Inventor: Michael J. Griffith
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Patent number: 5411777Abstract: A heat shrinkable wrap-around sleeve comprises a heat shrinkable sheet with a heat stable strip welded on one end. The free end of the heat stable strip is overlapped on the outer side of the opposite end of the sheet and welded thereto by heating applied directly on the outer side. This allows the material of the strip to differ in its properties from the material of the sheet, so that the nature of welded closure can be tailored to particular applications. It also allows manufacture of sleeves having hold-down adhesives applied on them to be conducted with greater ease and economy. The sleeve can be manufactured using continuous welding, for example by heated wedge welding.Type: GrantFiled: December 10, 1993Date of Patent: May 2, 1995Assignee: Shaw Industries, Ltd.Inventors: Robert E. Steele, Michael A. Romano, Peter Jackson
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Patent number: 5409751Abstract: A degradable container which is excellent in transparency and impact strength and can be decomposed into nontoxic water and carbon dioxide in the natural environment within a relatively short period can be obtained by using the process for molding a container of an arbitrary shape from a thermoplastic composition having polylactic acid of lactic acids or a copolymer of lactic acids and other hydroxycarboxylic acids as a main component, preforming the composition and thereafter molding the container in a temperature range from Tg to Tg+60.degree. C. on the basis of the glass transition temperature Tg of the thermoplastic polymer composition and under the condition of a draw ratio of 6 times or less.Type: GrantFiled: March 17, 1993Date of Patent: April 25, 1995Assignee: Mitsui Toatsu Chemicals, IncorporatedInventors: Kazuhiko Suzuki, Takayuki Watanabe, Yasuhiro Kitahara, Masanobu Ajioka
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Patent number: 5409748Abstract: A heat radiating tube for an annealing furnace is disclosed. An aluminide layer and an aluminum diffusion sublayer are formed by an aluminum diffusion coating method on one side or both sides of the tube portions which are subjected during use to high temperature oxidation corrosion. Subsequently, a coating of MCrAlY is applied on selected inside portions exposed to the combustion gas flame collision in order to reinforce the bonding strength of the protective coating. A layer of ceramic is then coated thereupon. Prior to applying the MCrAlY and ceramic coatings, the tube surface to be coated is ground to a depth equal to the coating thicknesses in order to make the heights of the coated layer and the surface of the remaining portions of the tube even each other.Type: GrantFiled: December 27, 1991Date of Patent: April 25, 1995Assignees: Pohang Iron & Steel Co., Ltd., Research Institute of Industrial Science & TechnologyInventors: Jin W. Song, Soon Y. Whang, Byong K. Sung
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Patent number: 5409747Abstract: A biodegradable paperboard container having an inner moisture resistant barrier coating for storing moist towels and a method for producing the container and moist towels.Type: GrantFiled: November 19, 1993Date of Patent: April 25, 1995Assignee: Leonard PearlsteinInventors: Leonard Pearlstein, Stuart P. Suskind
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Patent number: 5409129Abstract: A tinned steel sheet having a tin deposit obtained by evenly plating tin on the surface of a base steel sheet at a deposition rate of 0.5-1.7 g/m.sup.2 is used as a surface-treated steel sheet for forming a can body. A biaxially oriented polyester film having a thickness of 5-50 .mu.m is caused to adhere to the surface-treated steel sheet with a thermosetting resin adhesive at a temperature of 180.degree.-225.degree. C. as a protective coat. The tinned steel sheet has, on its both ends, two layers of a tin-iron alloy layer having a deposition rate of 0.35-1.60 g/m.sup.2 in terms of tin content and a tin layer having a tin deposition rate of 0.10-1.35 g/m.sup.2 at a stage after the adhesion of the polyester film but before welding. Said both ends of the surface-treated steel sheet are welded to each other, and another protective coat is applied to a portion of the inner surface, which is not covered with the first-mentioned protective coat, thereby forming a welded can.Type: GrantFiled: December 27, 1991Date of Patent: April 25, 1995Assignee: Hokkai Can Co., Ltd.Inventors: Shinichi Tsukada, Shunzo Miyazaki, Hideyuki Yoshizawa, Michiya Tamura, Koji Matsushima
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Patent number: 5407742Abstract: A structure which is useful for making containers for dentifrices, such as tubes, is comprised of a structure where the layer which contacts the dentifrice consists of a blend of polybutylene terephthalate and polyethylene. Other layers can consist of adhesives, paper, foils, other polymers and the like depending on the properties desired. A polybutylene terephthalate-polyethylene layer has been found to have a low degree of absorption of flavorant.Type: GrantFiled: February 3, 1992Date of Patent: April 18, 1995Assignee: Colgate-Palmolive CompanyInventors: Edward A. Tavss, John Santalucia, Richard S. Robinson
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Patent number: 5405711Abstract: An indexable cutting insert having a polycrystalline cutting edge along the entire periphery of the insert, comprising a top surface, a bottom surface and a side wall extending unbroken therebetween to form a body, said body comprised of a composite wafer of cemented carbide, polycrystalline material and cemented carbide material, a cutting edge formed of polycrystalline material, and a chip breaker rearward of the cutting edge, said chip breaker formed by removal of a portion of cemented carbide from the at least one of the top or bottom surface of the insert at the junction of the sidewall and the top or bottom surface.Type: GrantFiled: September 20, 1993Date of Patent: April 11, 1995Assignee: Valenite Inc.Inventor: Kenneth G. Noggle
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Patent number: 5405663Abstract: A laminate for use in microwave cooking which includes a susceptor formed by depositing a thin layer of microwave-interactive material on a plastic base sheet, and then extrusion bonding that susceptor to a plastic coated paper sheet, without the use of an adhesive.Type: GrantFiled: November 12, 1991Date of Patent: April 11, 1995Assignee: Hunt-Wesson, Inc.Inventors: William E. Archibald, Cynthia G. Scrimager
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Patent number: 5403635Abstract: Apparatus and method for applying heat shrinkable film to containers and other articles having a vertical body position, e.g., the cylindrical body of a container, and one or two re-entrant portions, e.g., a shoulder on a bottle. A segment of film is applied to the vertical surface without heat shrinking and with one or two end portions overlapping the re-entrant part of the article. Heat is applied to the overlap or overlaps to shrink them onto the article.Type: GrantFiled: August 10, 1993Date of Patent: April 4, 1995Assignee: B & H Manufacturing Co., Inc.Inventor: Wolfgang Hoffman
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Patent number: 5403634Abstract: The disclosure herein describes a collapsible flower vase that includes an elongated sleeve member made of flexible material, a pair of collars having a given shape, each having a structure adapted to engage a corresponding edge of the sleeve member to form a rigid assembly having a shape corresponding to that of the collars, and a flexible water-tight bag received within the rigid assembly and secured between one of the collars and an edge of the sleeve member. The sleeve member has rigidity along its longitudinal axis and flexibility in a direction perpendicular to the longitudinal axis.Type: GrantFiled: November 16, 1993Date of Patent: April 4, 1995Assignee: Lumigem Canada Inc.Inventor: Claude . Mauffette
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Patent number: 5403673Abstract: A functional thin film member is composed of an insulating substrate; a first single crystal thin film layer which contains at least one atom component of Si or Ge, formed on the insulating substrate; an intermediate layer with a cubic crystal system and a lattice constant difference of 15% or less with respect to the lattice constant of the single crystal thin film layer, formed on said single crystal thin film layer; and a second single crystal thin film layer of an oxide formed on the intermediate layer. The first single crystal thin film layer may include crystal orientations suitable for the properties of functional members to be provided above the single crystal thin film layer on an identical plane of the surface of the single crystal thin film layer, and the intermediate layer may be formed in at least one portion of the single crystal thin film layer, corresponding to any of the crystal orientations.Type: GrantFiled: March 9, 1992Date of Patent: April 4, 1995Assignees: Ricoh Company Ltd., Ricoh Research Institute of General Electronics Co., Ltd.Inventors: Koichi Haga, Akihiro Itoh, Hiroshi Miura
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Patent number: 5399440Abstract: The invention concerns a composit material with a glass-ceramic or ceramic matrix obtained by the sol-gel process and reinforced by fibers, wherein said matrix is MLAS matrix and wherein said fibers are at least 17% by volume Si-Ti-C-O fibers. FIG. 2 shows the flexural stress-strain curves (compression and tension) for a composite material containing 24% by volume of Si-Ti-C-O fiber in a MLAS matrix. Shaped articles produced from the composit material according to this invention can be used in the aeronautical and spatial industries and in motor vehicle engines.Type: GrantFiled: October 13, 1992Date of Patent: March 21, 1995Assignee: Aerospatiale Societe Nationale IndustrielleInventors: Pierre Lespade, Guy J. C. Larnac, Patrick Peres, Jean-Marc N. P. Donzac
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Patent number: 5395694Abstract: An aluminum nitride powder having a surface layer containing an oxynitride characterized in that the surface layer of the aluminum nitride particle contains an aluminum oxynitride which has an oxygen content of 5 to 75 mol % in terms of Al.sub.2 O.sub.3 /(Al.sub.2 O.sub.3 +AlN). The surface layer of the aluminum nitride powder may contain, besides the aluminum oxynitride, at least one other oxynitride selected from among oxynitrides of Mg, Ca, Ba, Ti, V, Cr, Co, Ni, Cu, Ga, Ge, Zr, Nb, Mo, Ru, Hf, Ta, W, Li, B, Si, Y, Sc and rare metal elements and the aluminum oxynitride and at least one other oxynitride have a total oxygen content in the range of 10 to 75 mol % in terms of (3.times.oxygen amount)/(3.times.oxygen amount+nitrogen amount).Type: GrantFiled: September 7, 1993Date of Patent: March 7, 1995Assignee: Sumitomo Electric Industries, Ltd.Inventors: Kouichi Sogabe, Takahiro Matsuura, Seiji Nakahata, Akira Yamakawa
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Patent number: 5395698Abstract: A coated article and method of producing it are disclosed wherein the iridescence caused by the difference between the refractive index of a transparent substrate and the refractive index of a metal oxide coating is reduced by means of two intermediate layers, the first of which, closest to the substrate, has a refractive index higher than the refractive index of the substrate but lower than the refractive index of the second, and the second has a refractive index higher than the refractive index of the first but lower than the refractive index of the metal oxide coating. The thicknesses of the two intermediate layers for optimizing a neutral appearance are determined by the thickness and refractive index of the metal oxide coating.Type: GrantFiled: June 4, 1993Date of Patent: March 7, 1995Assignee: PPG Industries, Inc.Inventors: George A. Neuman, Royann L. Stewart-Davis