Patents Examined by F. K. Wine
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Patent number: 4418736Abstract: A high performance bicycle tire comprising a casing of untreated woven fabric in the form of a toroid about an inner tube, wherein the threads of the fabric are in bias alignment. A polyurethane tread is preferably secured about the periphery of the casing.Type: GrantFiled: January 18, 1982Date of Patent: December 6, 1983Inventor: Garret K. Vandenburgh
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Patent number: 4416317Abstract: A pneumatic tire for a motor vehicle has a tread band having at least two longitudinal grooves which divide it into a plurality of circumferential ridges, and a series of circumferentially spaced axial grooves which divide the two outermost ridges into blocks. The edges of the inner ridges are provided with blind, oblique slits, all inclined in the same sense with respect to the circumferential direction of the tire. The slits are substantially parallel to one another and are preferably offset with respect to each other.Type: GrantFiled: December 1, 1981Date of Patent: November 22, 1983Assignee: Societa' Pneumatici Pirelli S.p.A.Inventor: Renato Caretta
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Patent number: 4415013Abstract: A method for repairing heavy-duty tires which have experienced separation at the intersection between the tread and sidewall is provided. The method comprises the steps of removing the loose rubber surrounding the separated area, buffing the area to a smooth finish, applying a rubber adhesive to the buffed area, firmly applying a blanket of uncured rubber of approximately one-half inch thickness to the buffed area and curing the rubber to the carcass. Alternatively, a thin blanket of tread rubber may be applied over a thin blanket of cushion gum to a total thickness of applied rubber of approximately one-half inch.Type: GrantFiled: May 28, 1982Date of Patent: November 15, 1983Assignee: United States Steel CorporationInventor: Fred B. Vine
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Patent number: 4415394Abstract: A method and apparatus for providing uniform corona bonding between and across the width of a plurality of layers of material each having a generally uniform thickness and width whereby, if desired, the plurality of layers may be easily and uniformly separated. Uniformity of bond is achieved by configuring the outer ends of an otherwise straight electrode, placed at an optimum effective bonding position, in proportion to the higher corona energy levels found to occur at the ends of the corona electrode bar.Type: GrantFiled: November 18, 1981Date of Patent: November 15, 1983Assignee: National Can CorporationInventor: Sidney Cholmar
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Patent number: 4413663Abstract: A pneumatic tire casing (10) having a tread portion (11) for receiving a tread (14), a pair of spaced bead portions (12,13) for mounting on a rim, a pair of sidewalls (20,21), one of said sidewalls extending between one axial extremity of said tread portion and one of said bead portions and the other of said sidewalls extending between the other axial extremity of said tread portion and the other of said bead portions, a circumferential slot (35) in at least one of the sidewalls, and an inlay ring (30) in each circumferential slot, providing stabilization and reinforcement for the sidewall, at least one inlay ring in the tire casing constituting a decorative member.Type: GrantFiled: November 27, 1981Date of Patent: November 8, 1983Inventor: Gordon A. Sullenger
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Patent number: 4410388Abstract: Variations in performance of metal clad reinforced resin laminates may be minimized by aging the laminates in a high-temperature, high-humidity atmosphere subsequent to the curing step. The products are useful for the production of printed circuit wiring boards.Type: GrantFiled: September 22, 1981Date of Patent: October 18, 1983Assignee: Kanegafuchi Kagaku Kogyo Kabushiki KaishaInventors: Masayuki Oizumi, Masaharu Abe, Yasuo Fushiki
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Patent number: 4406317Abstract: A wire core for a pneumatic tire in which at least one edge of the wire core is rounded relative to the internal edges of the wire core to minimize wear of the carcass enclosing the wire core.Type: GrantFiled: December 3, 1981Date of Patent: September 27, 1983Assignee: Otto Kuhlmann GmbH & Co.Inventor: Hans Merten
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Patent number: 4405682Abstract: A method for producing a fire-resistant, thermally insulating board, which comprises applying liquid hydrated sodium silicate (B) onto the inner surface of a facing material or sheet (A), spreading powdery hydrated sodium silicate (C) over the said applied surface, laying the said spread surface on(1) a facing material or sheet (D),(2) a facing material or sheet (D) applied in advance with liquid hydrated sodium silicate (B) or(3) a facing material or sheet having powdery hydrated sodium silicate (C) spread further over the applied surface of (2),implementing the heating and pressing procedure for gluing the assembly, and laminating the resulting fire-resistant board (E) with rigid isocyanurate foam (F).The fire-resistant, thermally insulating board shows reduced fusing and combustion of the rigid isocyanurate foam (F) even when exposed to flame and posseses superior mechanical properties.Type: GrantFiled: March 13, 1981Date of Patent: September 20, 1983Assignee: Takeda Chemical Industries, Ltd.Inventors: Shoichi Fujita, Katsuhisa Kodama, Kiyohiro Yuge
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Patent number: 4402357Abstract: A lightweight device for obtaining improved traction efficiency of rubber tired vehicles without adding ballast weight. The device has resilient traction intensifying means secured to a driving tire, including auxiliary means for utilizing stronger sub-surface soil, providing higher drawbar pull at a higher rate of travel speed; and means for convenient attachment and removal.Type: GrantFiled: November 17, 1981Date of Patent: September 6, 1983Inventor: Thorvald G. Granryd
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Patent number: 4402779Abstract: In a method for at least partly metalizing the surface of a laminated component, the layer of material which is to form part of the surface of the component is first metalized; then it is coated, as are the other layers of non-metalized material, with a polymerizable resin; and lastly the coated layers are stacked on the lower part of a mould, which is then subjected to pressure, possibly under heat.Type: GrantFiled: July 17, 1981Date of Patent: September 6, 1983Assignee: Avions Marcel Dassault-Breguet AviationInventor: Fernand J. Levy
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Patent number: 4399854Abstract: A tire repair patch having at least one ply package enveloped by an unvulcanized base cushion gum layer and an unvulcanized top cushion gum layer joined at the edges of the ply package. The overlapping plies of reinforcing cords in the ply package are coated with rubber and are at least partially vulcanized prior to assembly of the patch to increase the strength of the patch and decrease the curing time upon application to a tire.The patch is made by coating the plies with rubber, laying the plies one on top of the other to form the ply package, heating the package to cure the rubber coating and then positioning the ply package between the unvulcanized cushion gum layers. An unvulcanized intermediate cushion gum layer may be positioned between two ply packages where there is more than one ply package in the patch.Type: GrantFiled: June 15, 1981Date of Patent: August 23, 1983Inventors: Jobbie DiRocco, David J. DiRocco
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Patent number: 4396051Abstract: A pneumatic tire having a low air permeability, an improved fatigue resistance and a low fuel consumption is disclosed, which comprises an inner liner made of a vulcanizate of a rubber composition comprising 3-30 parts by weight of micro organic short fibers and 10-100 parts by weight of carbon black on a basis of 100 parts by weight of a rubber blend consisting mainly of butyl rubber and/or halogenated butyl rubber; said micro organic short fiber consisting of an amorphous portion having a glass transition temperature of less than 30.degree. C. or more than 120.degree. C. and a crystal portion having a melting point of not less than 160.degree. C., and having an average length of 0.8-30 .mu.m, an average diameter of 0.02-0.8 .mu.m and a ratio of average length to average diameter of 8-400.Type: GrantFiled: March 1, 1982Date of Patent: August 2, 1983Assignee: Bridgestone Tire Co., Ltd.Inventors: Masaki Ogawa, Yasushi Hirata
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Patent number: 4396450Abstract: Environmental resistance of rubber-metal bonded assemblies is significantly improved by a process comprising treating such substrates in a "low temperature" plasma comprising at least one sulfur-containing reactive monomer.Type: GrantFiled: June 22, 1981Date of Patent: August 2, 1983Assignee: Lord CorporationInventors: Donald R. Blenner, Herman V. Boenig
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Patent number: 4395299Abstract: Bulk pieces of graphite bonded with a graphitizable binder comprising a lid crystalline component of pitch, which softens at about 240.degree. C. and becomes very fluid at about 300.degree. C. to about 500.degree. C. The bonded graphite pieces appear as a monolithic material even under 1000.times. magnification. The bonding is effected under vacuum or in an inert atmosphere at temperatures of from about 700.degree. C. to about 3000.degree. C., usually about 1000.degree. C. to about 1500.degree. C., under pressure of from about 20 psi to about 1000 psi applied in a direction normal to the bonding surface.Type: GrantFiled: August 21, 1981Date of Patent: July 26, 1983Assignee: The United States of America as represented by the Secretary of the ArmyInventors: Dennis M. Riggs, Edward L. Harvey
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Patent number: 4392521Abstract: Metal cross chains are interconnected on the inboard side by an inboard rope connector and on the outboard side by an outboard rope connector. Each interconnection of a rope connector with a cross chain includes a combined rope-to-cross chain connecting link and rope clamping ring and rope connector adjustment device having a substantially V-shaped wire body with a loop formed at each end of the V. One of the end loops is firmly clamped to the rope connector and the other one of the loops partially surrounds and slidably engages the rope connector and is open sufficiently to permit the rope to be slipped out of that loop. A collar is clamped to the rope at a position to maintain a loop in the rope between the two connecting link loops when the collar is inside the slidably engaged loop, and to permit the rope loop to be released when the collar is positioned outside of the slidably engaged connecting link loop.Type: GrantFiled: August 23, 1982Date of Patent: July 12, 1983Inventor: Victor S. Giannone
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Patent number: 4391668Abstract: The invention disclosed is a novel method for the preparation of a nickel/cobalt oxide impregnated nickel plaque material involving a single oxidation step. The nickel plaque material is cleaned, impregnated with an aqueous cobalt nitrate solution and dried. The nickel/cobalt oxide is then formed in a single oxidation step.Type: GrantFiled: April 22, 1981Date of Patent: July 5, 1983Assignee: Her Majesty the Queen in right of Canada, as represented by the Minister of National DefenceInventor: William A. Armstrong
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Patent number: 4391924Abstract: High temperature-resistant thermobarriers have a filler therein. The filler can be an opaque thermobarrier material, a fabric or cloth such that a laminated thermobarrier is formed, or preformed bubbles of glass, ceramic or plastic such that a syntactic foam thermobarrier is formed. The thermobarrier contains a boroxine compound therein as well as epoxy resins and various phosphorus compounds and/or aromatic alcohols. Generally, the syntactic foam thermobarriers give the best heat protection.Type: GrantFiled: October 22, 1982Date of Patent: July 5, 1983Assignee: Goodyear Aerospace CorporationInventor: John R. Uram, Jr.
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Patent number: 4391664Abstract: A process for fixing wear-resistant armoring tiles to cement mortar. In accordance with the process, the back sides of the tiles are coated with a mixture of polyester epoxy resin composition including sand and quartz or sand powder, with a curing agent. A material having an affinity for the cement mortar (like quartz sand or lavalite) is dusted and rolled into the coated back side of the tiles, so as to thoroughly be mixed up with the resin mixture coating. After the hardening of the coating including the material having affinity to cement mortar, the tiles are embedded in the cement mortar. Accordingly, this process substantially eliminates the well known poor adhesive properties of such tiles with respect to cement mortar.Type: GrantFiled: September 2, 1980Date of Patent: July 5, 1983Assignee: Schmelzbasaltwerk Kalenborn, Dr. Ing. Mauritz KGInventor: Wilhelm Kramer
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Patent number: 4391665Abstract: A method of making pile material comprising pile strands or the like arranged in side-by-side relation, and a backing member bonded to the strands, the method comprising the steps of providing a bundle of pile strands, the strands extending in side-by-side relation and being held in pressurized engagement with each other by a wrapper surrounding the strands, cutting the bundle including the wrapper into slices, and positioning each slice in a form having a wall surrounding the slice and spaced outwardly thereof. The wrapper is removed from the slice, thereby allowing the pile strands to expand laterally outwardly into engagement with the wall of the form for being held by the form. A backing member is thereafter bonded to the pile strands on one face of the slice.Type: GrantFiled: August 10, 1981Date of Patent: July 5, 1983Inventors: Paul B. Mitchell, Jr., Paul B. Mitchell
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Patent number: 4389281Abstract: The present invention provides a method for planarizing a non-uniform thickness of oxide, for example silicon dioxide as is formed over oxide-filled trenches used in deep dielectric isolation in integrated circuits. The oxide is removed by a planarizing resist-etching process so that etching in thicker resist areas proceeds at a rate slower than etching in thinner resist areas. A referred etchant is HF gas and etching is preferably at an elevated temperature.Type: GrantFiled: December 16, 1980Date of Patent: June 21, 1983Assignee: International Business Machines CorporationInventors: Narasipur G. Anantha, Harsaran S. Bhatia, John S. Lechaton, James L. Walsh