Patents Examined by Beverly K. Johnson
  • Patent number: 4405666
    Abstract: 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: Grant
    Filed: April 2, 1982
    Date of Patent: September 20, 1983
    Assignee: Mobil Oil Corporation
    Inventor: Joann H. Squier
  • Patent number: 4404242
    Abstract: 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: Grant
    Filed: April 2, 1982
    Date of Patent: September 13, 1983
    Assignee: Mobil Oil Corporation
    Inventor: Joann H. Squier
  • Patent number: 4403017
    Abstract: 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: Grant
    Filed: November 30, 1981
    Date of Patent: September 6, 1983
    Assignee: The Perkin-Elmer Corporation
    Inventor: Jean-Marie Bind
  • Patent number: 4399185
    Abstract: 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: Grant
    Filed: September 18, 1981
    Date of Patent: August 16, 1983
    Assignee: Prototech Company
    Inventor: Henry G. Petrow
  • Patent number: 4399184
    Abstract: 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: Grant
    Filed: February 2, 1982
    Date of Patent: August 16, 1983
    Inventor: George S. Nalle, Jr.
  • Patent number: 4396678
    Abstract: 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: Grant
    Filed: April 10, 1981
    Date of Patent: August 2, 1983
    Assignee: General Electric Company
    Inventor: Daniel R. Olson
  • Patent number: 4380562
    Abstract: 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: Grant
    Filed: February 18, 1981
    Date of Patent: April 19, 1983
    Inventor: William A. Bream
  • Patent number: 4380568
    Abstract: 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: Grant
    Filed: March 23, 1981
    Date of Patent: April 19, 1983
    Assignee: Chugai Boyeki Co., Ltd.
    Inventors: Shuji Masuda, Keisuke Ueno
  • Patent number: 4379197
    Abstract: 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: Grant
    Filed: December 2, 1981
    Date of Patent: April 5, 1983
    Assignee: El Paso Polyolefins Company
    Inventors: Cipriano Cipriani, Henry J. Boyd
  • Patent number: 4376047
    Abstract: 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: Grant
    Filed: June 18, 1981
    Date of Patent: March 8, 1983
    Assignee: Dionex Corporation
    Inventor: Christopher A. Pohl
  • Patent number: 4370189
    Abstract: 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: Grant
    Filed: December 16, 1980
    Date of Patent: January 25, 1983
    Assignee: Phillips Petroleum Company
    Inventors: Roy W. Siedenstrang, Agmund K. Thorsrud
  • Patent number: 4368844
    Abstract: 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: Grant
    Filed: October 6, 1981
    Date of Patent: January 18, 1983
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Donald F. Miller
  • Patent number: 4366200
    Abstract: 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: Grant
    Filed: December 24, 1980
    Date of Patent: December 28, 1982
    Assignee: Proform, Inc.
    Inventor: Walter N. Ecker
  • Patent number: 4362587
    Abstract: 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: Grant
    Filed: November 24, 1980
    Date of Patent: December 7, 1982
    Assignee: BFG Glassgroup
    Inventors: Pol Baudin, Pierre Collignon, Claude Gillieaux
  • Patent number: 4361620
    Abstract: 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: Grant
    Filed: April 20, 1971
    Date of Patent: November 30, 1982
    Assignee: Wing Industries, Inc.
    Inventor: Emerson H. Newton
  • Patent number: 4337114
    Abstract: 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: Grant
    Filed: October 29, 1980
    Date of Patent: June 29, 1982
    Assignee: Sprague Electric Company
    Inventors: Philip G. Russell, Walter J. Bernard, Sidney D. Ross
  • Patent number: 4333981
    Abstract: 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: Grant
    Filed: May 5, 1980
    Date of Patent: June 8, 1982
    Inventors: Armand G. Winfield, Barbara L. Winfield
  • Patent number: 4330583
    Abstract: 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: Grant
    Filed: February 5, 1981
    Date of Patent: May 18, 1982
    Assignee: RCA Corporation
    Inventors: Pabitra Datta, Eugene S. Poliniak
  • Patent number: 4327140
    Abstract: 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: Grant
    Filed: February 5, 1981
    Date of Patent: April 27, 1982
    Assignee: RCA Corporation
    Inventor: Joseph R. Preston
  • Patent number: 4311763
    Abstract: 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: Grant
    Filed: July 18, 1980
    Date of Patent: January 19, 1982
    Assignee: General Electric Company
    Inventor: James T. Conroy