Patents Examined by Beverly K. Johnson
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Patent number: 4405666Abstract: A flexible film laminate of (a) a polyacrylonitrile film containing a heterized ethylene oxide-propylene oxide copolymer; (b) contacting said film with an adhesive combination layer of a styrene-butadiene block copolymer and a terpolymer of 1,3-pentadiene, a monocyclic terpene and alpha methylstyrene; and (c) a second polyacrylonitrile film or a heat-sealable polyolefin film contacting said adhesive layer; a product pouch made therefrom; and a method of forming said laminate.Type: GrantFiled: April 2, 1982Date of Patent: September 20, 1983Assignee: Mobil Oil CorporationInventor: Joann H. Squier
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Patent number: 4404242Abstract: A flexible film laminate of (a) a polyacrylonitrile film containing a polyalkylene glycol ether adhesion promoter; (b) contacting said film with an adhesive combination layer of a styrene-butadiene block copolymer and a terpolymer of 1,3 pentadiene, a monocyclic terpene and alpha methylstyrene; and (c) a second polyacrylonitrile film or a heat sealable polyolefin film contacting said adhesive layer; a product pouch therefrom; and a method of forming said laminate.Type: GrantFiled: April 2, 1982Date of Patent: September 13, 1983Assignee: Mobil Oil CorporationInventor: Joann H. Squier
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Patent number: 4403017Abstract: A modified cordierite (2MgO.2Al.sub.2 O.sub.3.5SiO.sub.2) composition in which at least a portion of the silicon dioxide is replaced with germanium oxide. These compositions have low thermal expansion, excellent formability and thermal shock resistance making them especially suitable for the manufacture of mirror substrates to be used at elevated temperatures. By selecting the proportion of germanium oxide according to the intended operating temperature, substantially zero thermal expansion can be achieved between room temperature and the selected operating temperature. Methods of manufacturing the material and of selecting the thermal expansion characteristics are also disclosed.Type: GrantFiled: November 30, 1981Date of Patent: September 6, 1983Assignee: The Perkin-Elmer CorporationInventor: Jean-Marie Bind
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Patent number: 4399185Abstract: This disclosure is concerned with a novel limp, low-pressure-drop catalytic mat, particularly adapted for use in ignitible gas-flow systems, such as heated hair curlers and the like, comprising in preferred form a loosely packed quartz fiber mat to the fibers of which have been adhered oxide particles as of alumina and the like, coated with platinum catalytic particles, without, however, impairing the limpness, looseness and flexibility of the mat.Type: GrantFiled: September 18, 1981Date of Patent: August 16, 1983Assignee: Prototech CompanyInventor: Henry G. Petrow
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Patent number: 4399184Abstract: A rip resistant net is produced by the coextrusion of two or more polymers wherein some of each polymer is in every filament of the net.Type: GrantFiled: February 2, 1982Date of Patent: August 16, 1983Inventor: George S. Nalle, Jr.
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Patent number: 4396678Abstract: A coated polycarbonate article having improved resistance to degradation by ultraviolet radiation, abrasion and attack by chemical solvents comprising a polycarbonate resin article with its surface layers impregnated with an ultraviolet radiation absorbing compound and having deposited on said impregnated surface a coating comprised of (i) a thermoplastic acrylic polymer containing functional groups primer layer; and (ii) a top coat disposed on said primer layer containing a colloidal silica filled thermoset organopolysiloxane.Type: GrantFiled: April 10, 1981Date of Patent: August 2, 1983Assignee: General Electric CompanyInventor: Daniel R. Olson
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Patent number: 4380562Abstract: The present invention relates to a kinetic waveform that is adapted to be vertically oriented and anchored. As so oriented, the kinetic waveform device comprises a plurality of generally uniformly sized and shaped slats suspended and secured along two vertical axis threads that are in turn anchored between two vertically spaced apart points. Once vertically oriented and anchored, the waveform will generally revolve about a vertical axis with the individual slats slowly and generally progressively revolving about the same general vertical axis. Thus the plane of the slats tends to twist, ripple, and to continue to change shapes in a wave-like manner about the vertical axis thereby imparting an art like character to the waveform that is particularly beneficial in providing visual stimulation and intellectual entertainment.Type: GrantFiled: February 18, 1981Date of Patent: April 19, 1983Inventor: William A. Bream
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Patent number: 4380568Abstract: Flame retardant heat insulating material and a method for preparing the same characterized in that a ground mixture of cellulose fibers with cellulose flakes or particles is chemically or physically bonded with condensed ammonium phosphate to form a fiberfil.Type: GrantFiled: March 23, 1981Date of Patent: April 19, 1983Assignee: Chugai Boyeki Co., Ltd.Inventors: Shuji Masuda, Keisuke Ueno
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Patent number: 4379197Abstract: Films especially useful for the stretch wrapping of pallet loads are prepared from compositions consisting essentially of a linear low density polyethylene resin free of any polymerized vinyl acetate groups and from about 0.3 to about 3.0 wt % sorbitan monooleate based on the weight of the resin.Type: GrantFiled: December 2, 1981Date of Patent: April 5, 1983Assignee: El Paso Polyolefins CompanyInventors: Cipriano Cipriani, Henry J. Boyd
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Patent number: 4376047Abstract: An ion exchange composition formed of insoluble synthetic resin support particles with ion exchange sites at their exposed surfaces, and fine synthetic resin layering particles with ion exchange sites on their exposed surfaces, which attract the ion exchange sites of the support particles so that the layering particles are irreversibly attached as a monolayer to the support particles. The layering particles have a median diameter ranging from 0.002 to 0.09 microns, while the ratio of median diameters of the support particles to layering particles range from 100 to 1, and 5000 to 1. The composition is packed into a column and is used for separation of ions in liquid ion exchange chromatography.Type: GrantFiled: June 18, 1981Date of Patent: March 8, 1983Assignee: Dionex CorporationInventor: Christopher A. Pohl
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Patent number: 4370189Abstract: In accordance with the present invention, at least two sheets of a thermoplastic polyalkene are bonded to one another to form a bonded product and at least one surface of a polyalkene is formed on at least a part of a synthetic nonhydrogenated, unvulcanized elastomeric product to form a bonded product by disposing the sheets of polyalkene or at least one sheet of polyalkene on the synthetic elastomeric product, as the case may be, in a mold, closing the mold and subjecting the assembly to microwave energy at a power level, for a time and while applying a pressure sufficient to bond the two polyalkene sheets or the polyalkene sheet to the synthetic elastomeric material, as the case may be.Type: GrantFiled: December 16, 1980Date of Patent: January 25, 1983Assignee: Phillips Petroleum CompanyInventors: Roy W. Siedenstrang, Agmund K. Thorsrud
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Patent number: 4368844Abstract: Railroad support fabric consisting essentially of three lamellae, two being of nonwoven polypropylene fibers, and the third being of nylon fibers, the nylon fiber lamella being sandwiched between the other lamellae, and railroad beds containing said support fabric.Type: GrantFiled: October 6, 1981Date of Patent: January 18, 1983Assignee: E. I. Du Pont de Nemours and CompanyInventor: Donald F. Miller
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Patent number: 4366200Abstract: A nonskid structural surface (10) is disclosed. The nonskid surface (10) includes a plurality of planar strips (12) alternated with strips (14) having protrusions (16). Protrusion strips (14) preferably have pyramidal-shaped protrusions (16) with adjacent rows of protrusions (16) staggered and alternate rows aligned with one another. Each protrusion (16) has a four-sided pyramidal shape with a rounded apex (20) and a base (18) of four corners. A longer length between one set of opposite corners than width between a second set of opposite corners is preferred.Type: GrantFiled: December 24, 1980Date of Patent: December 28, 1982Assignee: Proform, Inc.Inventor: Walter N. Ecker
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Patent number: 4362587Abstract: When forming a multi-ply laminate having at least one thermoplastic structural ply forming an outer ply of the laminate, known processes comprise degassing and bonding steps during which gas is removed from between assembled structural plies of the laminate and the plies are heated to cause them to bond together while a moulding plate is in contact with the or each exposed thermoplastic ply.Type: GrantFiled: November 24, 1980Date of Patent: December 7, 1982Assignee: BFG GlassgroupInventors: Pol Baudin, Pierre Collignon, Claude Gillieaux
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Patent number: 4361620Abstract: Total heat energy exchange medium incorporated in an energy exchange device for transferring heat and moisture between two airstreams in an air supply system. The exchange medium is aluminum having a coating of hydrated calcium and aluminum oxides or hydroxides to render its heat transfer surfaces capable of exchanging latent as well as sensible heat energy. The coating is formed by exposing precleaned aluminum to a heated, preferably boiling solution of water-soluble calcium and aluminum compounds, preferably equal parts of hydrated calcium nitrate and hydrated aluminum nitrate, the pH of the solution having been brought to the range of from about 7 to 11, preferably pH=8 to 9, by adding sodium hydroxide which produces in the solution a mixed gelatinous precipitate of hydrated calcium and aluminum oxides and hydroxides.Type: GrantFiled: April 20, 1971Date of Patent: November 30, 1982Assignee: Wing Industries, Inc.Inventor: Emerson H. Newton
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Patent number: 4337114Abstract: Nodular copper is dissolved from aluminum foil surfaces by contacting the aluminum with a 0.1 to 2 M ammonium persulfate solution. The contacting temperature is 20.degree. to 40.degree. C., preferably 30.degree. C., and the contacting time is 1 to 10 minutes, preferably 2 minutes.Type: GrantFiled: October 29, 1980Date of Patent: June 29, 1982Assignee: Sprague Electric CompanyInventors: Philip G. Russell, Walter J. Bernard, Sidney D. Ross
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Patent number: 4333981Abstract: An abrasion resistant, impact absorbent animal stall floor and wall covering comprises a liquid impermeable ionomer resin layer having an aggregate thickness of at least about 5 mils superimposed upon a foamed resin layer having an aggregate thickness of at least 200 mils and an aggregate density in the range of from about 0.50 to about 10.0.Type: GrantFiled: May 5, 1980Date of Patent: June 8, 1982Inventors: Armand G. Winfield, Barbara L. Winfield
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Patent number: 4330583Abstract: High density information records comprising a conductive carbon-loaded polyvinylchloride record are lubricated with a fractionated methylalkylsiloxane lubricant which contains an hydroxylated amine and or its quaternary salt in an amount sufficient to reduce sensitivity of the records to moisture.Type: GrantFiled: February 5, 1981Date of Patent: May 18, 1982Assignee: RCA CorporationInventors: Pabitra Datta, Eugene S. Poliniak
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Patent number: 4327140Abstract: High density information discs comprising a conductive carbon loaded polyvinylchloride disc is lubricated with a fractionated methyl alkyl siloxane lubricant which contains an amino alkoxy silane.Type: GrantFiled: February 5, 1981Date of Patent: April 27, 1982Assignee: RCA CorporationInventor: Joseph R. Preston
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Patent number: 4311763Abstract: An improved silicone resin coating composition is provided, the composition comprising an aged dispersion of colloidal silica in an aliphatic alcohol-water solution of the partial condensate of a silanol with a small, adhesion-promoting amount of a .beta.-hydroxyketone compound added thereto.Type: GrantFiled: July 18, 1980Date of Patent: January 19, 1982Assignee: General Electric CompanyInventor: James T. Conroy