Patents Examined by William J. Van Balen
  • Patent number: 5114773
    Abstract: A carpet underlay cushion structure is provided having a carrier layer of open-cell resilient foam material having an initial thickness, said resilient foam material being substantially completely and uniformly impregnated with an impregnant composition containing a polymer which is cured after said impregnation, wherein the open cells of said carpet underlay cushion structure partially comprise said foam material of said carrier layer, and wherein said cured polymer impregnant retains said carpet underlay cushion structure comprising said carrier layer and said cured polymer impregnant at a finished thickness less than said initial thickness of said carrier layer, and wherein the carpet underlay cushion structure possesses substantially the mechanical and physical properties of the polymer impregnant and wherein said carpet underlay cushion structure retains an open cell configuration at said finished thickness.
    Type: Grant
    Filed: August 17, 1990
    Date of Patent: May 19, 1992
    Assignee: Resilient Systems, Inc.
    Inventor: John Bogdany
  • Patent number: 5112663
    Abstract: A method of making a composite structure, such as an aircraft wing, which has a foam core and at least one outer layer of fiber reinforced resin material. A shaped foam core is prepared by compressing a rigid, closed-cell foam to the desired shape in a closed mold under heat and pressure. A sheet of flexible open-cell foam is impregnated with a thermosetting resin. A sheet of dry fiber reinforcement material is placed on one or both sides of the impregnated foam sheet. The resulting sandwich is wrapped around the foam core and the assembly is placed in a corresponding tool cavity. The tool is heated to the curing temperature of the impregnating resin. As the temperature rises, the foam core expands, exerting pressure on the impregnated foam sheet, forcing resin into the fiber reinforcement, wetting all the fibers and forcing air out of the material. As the resin cures, void-free, strong skins are formed integral with the core foam.
    Type: Grant
    Filed: April 22, 1991
    Date of Patent: May 12, 1992
    Assignee: General Dynamics Corporation, Convair Division
    Inventors: Paul W. Morenz, Charles E. Knox
  • Patent number: 5112678
    Abstract: A method of producing a non-porous mat includes coating a predominantly glass fiber porous web substrate. The coating comprises an aqueous mixture of a mineral pigment; a first binder material comprised of a polymer latex adhesive material; and, a second binder material comprised of an inorganic adhesive material. On a dry weight basis, the first binder material comprises no more than 5.0% by weight, and the second binder material at least 0.5% by weight, of the total weight of the coating. The second binder preferably comprises an inorganic compound such as calcium oxide, calcium silicate, calcium sulfate, magnesium oxychloride, magnesium oxysulfate, or aluminum hydroxide. In one mode, the second binder is included in the mineral pigment, as in the cases wherein the mineral pigment includes aluminum trihydrate, calcium carbonate, calcium sulfate, magnesium oxide, and some clays and sands. A method of using the coated mat to produce a thermosetting plastic foam laminate panel is also disclosed.
    Type: Grant
    Filed: November 21, 1990
    Date of Patent: May 12, 1992
    Assignee: Atlas Roofing Corporation
    Inventors: William M. Gay, Robert H. Blanpied, Philip W. Bush, Richard L. Donald, James L. Williams, James H. Williams
  • Patent number: 5110684
    Abstract: A method of rendering masonry architectural building materials water repellent by incorporating into the masonry architectural building material an additive which is a mixture of (i) a water soluble silane coupling agent and (ii) an emulsion which includes water, at least one surfactant, and a siloxane fluid. The siloxane fluid is one of a linear methylhydrogen siloxane polymers, linear methylhydrogen-methylalkyl siloxane copolymers, methylhydrogen cyclosiloxane polymers, or methylhydrogen-methylalkyl cyclosiloxane copolymers. An inorganic porous mineral substrate including the mixture is also disclosed.
    Type: Grant
    Filed: November 7, 1990
    Date of Patent: May 5, 1992
    Assignee: Dow Corning Corporation
    Inventor: Ian V. Cooper
  • Patent number: 5108833
    Abstract: The present invention concerns a method of preparing a porous structural unit comprising a plurality of layers having different specific gravities by pressing and heating a material including resin particles between opposing molds having a temperature difference to thereby cause the fusion or bonding of the resin particles, and a porous structural unit which improves acoustic absorption properties and heat insulation properties and in which the specific gravity is continuously changed.
    Type: Grant
    Filed: October 31, 1989
    Date of Patent: April 28, 1992
    Assignees: Mitsubishi Denki Kabushiki Kaisha, Mitsubishi Electric Home Appliance Co., Ltd.
    Inventors: Yoshihiro Noguchi, Toshihisa Imai, Yutaka Takahashi, Hideharu Tanaka
  • Patent number: 5106684
    Abstract: Foam sheets of high heat distortion resistance contain a) from 80 to 99% by weight of a styrene polymer and b) from 1 to 20% by weight of poly-1,4-phenylene sulfide, and, if desired, conventional additives and are produced by extrusion using a low-boiling blowing agent.
    Type: Grant
    Filed: February 15, 1991
    Date of Patent: April 21, 1992
    Assignee: BASF Aktiengesellschaft
    Inventors: Reinhold Weber, Gerhard Alicke, Manfred Weilbacher, Uwe Guhr, Klaus Hahn
  • Patent number: 5104715
    Abstract: An insulating board is formed of a low density insulating material, such as polystyrene foam. The board has apertures therein and a plurality of slots on its upper and its lower surfaces, the slots in the lower surface being offset from those in the upper surface. A high density material, such as gypsum or artificial resin or a cement fills the apertures and slots and extends over the upper and the lower surfaces of the board and, if desired, over it edges to form a composite sheet. Sheets of paper, plastic or metal may be fixed to the top and to the bottom of the composite sheet. A tile may be provided by affixing a planar sheet or the like to the top side of the composite sheet, the planar sheet, when in place, conforming to the upper surface of the composite sheet. A method of making the sheet involves bringing the board of low density material into contact with the material of higher density and allowing it to set or cure.
    Type: Grant
    Filed: May 30, 1990
    Date of Patent: April 14, 1992
    Inventor: Francisco A. Cruz
  • Patent number: 5104712
    Abstract: The surface covering material, which is particularly suitable for external uses such as ground or floor covering in golf driving areas, comprises a multi layer structure, which itself comprises(a) an outer layer 1 comprising a preformed fabric 2;(b) an underlayer 4 comprising a rigid liquid impermeable sheet material bonded to the undersurface of the outer layer by means of an adhesive bonding layer 5; and(c) a layer 7 of relatively more flexible, hydrophobic closed cell foam, the surface of which is secured directly to the undersurface of the underlayer either by means of a hot melt adhesive or by sintering.
    Type: Grant
    Filed: May 11, 1990
    Date of Patent: April 14, 1992
    Inventor: Ian D. Walters
  • Patent number: 5104729
    Abstract: Surface modified support membranes and a process therefor are disclosed wherein the support membrane has a substantially uniform layer of hydrogel deposited on essentially the entire surface area thereof.
    Type: Grant
    Filed: August 20, 1990
    Date of Patent: April 14, 1992
    Assignee: Monsanto Company
    Inventor: Erwin R. Stedronsky
  • Patent number: 5102728
    Abstract: A coating composition and method of producing a non-porous mat includes coating a predominantly glass fiber porous web substrate. The coating comprises an aqueous mixture of a mineral pigment; a first binder material comprised of a polymer latex adhesive material; and, a second binder material comprised of asphalt emulsion material. The total dry weight basis of both binders does not exceed 24% of the total coating.
    Type: Grant
    Filed: February 21, 1991
    Date of Patent: April 7, 1992
    Assignee: Atlas Roofing Corporation
    Inventors: William M. Gay, Robert H. Blanpied, Philip W. Bush, Richard L. Donald, James L. Williams, James H. Williams
  • Patent number: 5100701
    Abstract: Especially in gripper, insertion and bending tools of automatic insertion machines for electric components, the problem arises, that the production flow is adversely influenced because of solder accumulations at the tools. In machine design it is already known to apply hard material layers on a nitride base to improve tool surfaces; normally, better solder resistance is expected of them. According to the invention at least one second layer is provided as the cover layer with solid-lubricant properties, besides the nitride base layer. The base layer has here preferably a gradual change from high density in the boundary region to the base material of the tool to a porous rough structure at the boundary surface to the cover layer, where the change of the density can be continuous. The metal-nitride layer is advantageously a titanium nitride.With such coatings, the service life of the tools can be increased by more than one order of magnitude.
    Type: Grant
    Filed: February 2, 1990
    Date of Patent: March 31, 1992
    Assignee: Siemens Aktiengesellschaft
    Inventors: Helmut Freller, Hans P. Lorenz, Friedrich Horauf, Peter Schack
  • Patent number: 5100725
    Abstract: A radiant heat barrier layer is sandwiched between and bonded to two closed cell foam layers by non-heat conducting adhesive.
    Type: Grant
    Filed: January 25, 1991
    Date of Patent: March 31, 1992
    Assignee: Reflective Toppings, Inc.
    Inventor: Ben Pearson
  • Patent number: 5100730
    Abstract: A structural reinforcement apparatus comprising hollow geometrically defined cell members. These geometrically defined members may be bonded together to form a lightweight strong panel. A sandwich may be formed by applying a layer of suitable material to each side of the panel. These panels can be used to form the hull of vehicles and to form insulating panels and structural panels in building construction.
    Type: Grant
    Filed: November 16, 1989
    Date of Patent: March 31, 1992
    Inventor: Thomas J. Lambers
  • Patent number: 5100712
    Abstract: A flowable, pressure-compensating composition is provided comprising a liquid, a material for increasing the viscosity of the liquid and spherical particles. A method for making such composition is also provided. The composition is especially suitable for use in padding devices.
    Type: Grant
    Filed: September 21, 1989
    Date of Patent: March 31, 1992
    Assignee: Alden Laboratories, Inc.
    Inventors: Terrence M. Drew, Chris A. Hanson, Alden B. Hanson
  • Patent number: 5098762
    Abstract: Plywood comprising veneer layers each composed of a plurality of divided wood pieces with a clearance formed between the wood pieces.
    Type: Grant
    Filed: December 28, 1990
    Date of Patent: March 24, 1992
    Assignee: Asahi Woodtec Corporation
    Inventor: Tsutomu Nakajima
  • Patent number: 5098750
    Abstract: This invention relates to a composite molded article where a polymer film of superior weather resistance, adhesion and surface smoothness is made into an integral composite body on the surface of polynorbornene base material by utilizing reaction injection molding in combination with an in-mold coating process. By means of this invention, it is possible to manufacture three dimensional composite molded articles, composite molded articles of complex shapes and deep-drawn composite molded articles. The composite molded articles of this invention can be used for a variety of purposes, such as automobile parts, electrical parts, construction, etc.
    Type: Grant
    Filed: August 6, 1990
    Date of Patent: March 24, 1992
    Assignee: The B. F. Goodrich Company
    Inventors: Susumu Ueno, Kin-ichi Okumura, Motoyuki Yamato
  • Patent number: 5098779
    Abstract: A carvable implant material for use in surgery and especially in plastic and reconstructive surgery is described which comprises porous PTFE having a coating of a stiffening agent intended to stiffen the PTFE in order to render it carvable. This material may thus be carved into a desired shape prior to implantation. The stiffening agent is biodegradable to allow tissue ingrowth to stabilize the location of the implant as the biodegradable stiffening agent is degraded and absorbed by the body.
    Type: Grant
    Filed: June 25, 1990
    Date of Patent: March 24, 1992
    Assignee: W. L. Gore & Associates, Inc.
    Inventors: Thane L. Kranzler, Norman J. Sharber
  • Patent number: 5093175
    Abstract: An integrally foamed article comprises a threefold-laminated cover material and a body foam bonded together thereto. The threefold-laminated cover material is preliminarily configured into a substantially closed hollow shape corresponding to a desired final contour into which a foamable mixture such as reactive polyurethane stock is poured and allowed to foam and expand to adhere integrally therewith without any penetration into said cover material. The threefold-laminated cover material is composed of an outermost permeable cover fabric such as knitted or woven fabric, an intermediate thin foam layer bonded to the inside of said fabric, and an innermost shielding film such as polyvinyl chloride or polyurethane film formed therein with a number of minute air holes permitting gases and air to be passed therethrough, but not permitting said foamable mixture to enter.
    Type: Grant
    Filed: December 28, 1989
    Date of Patent: March 3, 1992
    Assignee: Namba Press Works Co., Ltd.
    Inventors: Fumio Goto, Taro Ogawa
  • Patent number: 5093138
    Abstract: A flowable, pressure-compensating composition is provided comprising a liquid, a material for increasing the viscosity of the liquid and spherical particles. A method for making such composition is also provided. The composition is especially suitable for use in padding devices.
    Type: Grant
    Filed: August 27, 1990
    Date of Patent: March 3, 1992
    Assignee: Alden Laboratories, Inc.
    Inventors: Terrence M. Drew, Chris A. Hanson, Alden B. Hanson
  • Patent number: 5091236
    Abstract: A multilayer opaque, biaxially oriented polymeric film structure.
    Type: Grant
    Filed: May 14, 1991
    Date of Patent: February 25, 1992
    Assignee: Mobil Oil Corporation
    Inventors: Lajos E. Keller, Jean-Pierre Frognet, Maurice Petitjean