Patents Assigned to Reynolds Metals Company
  • Method of and apparatus for direct casting of metal strip
    Patent number: 4934443
    Abstract: A method of direct casting molten metal into strip by providing a melt of the metal to be cast, providing a continuously driven metal chill surface, flowing a layer of the melt onto the moving chill surface and extracting heat from the layer of melt to solidify and temporarily bond the layer of melt to the chill surface and to shrink the solidified layer and cause it to be released from the chill surface, withdrawing the released solidified layer as a continuous metal strip, establishing a natural oxide layer on said chill surface to provide an interface between said layer of melt and said chill surface, and maintaining said natural oxide in a smooth layer of substantially uniform thickness.
    Type: Grant
    Filed: April 11, 1989
    Date of Patent: June 19, 1990
    Assignee: Reynolds Metals Company
    Inventors: LeRoy Honeycutt, III, James C. Key, Herbert Moody, III
  • Molten metal temperature probe
    Patent number: 4919543
    Abstract: A probe for measuring the temperatures within a molten metal pool at various vertical levels within the pool is disclosed. The probe includes a plurality of vertically spaced thermocouples protruding from the surface of a refractory block. Also disclosed is a support mechanism for positioning and maintaining the temperature probe within the molten metal pool.
    Type: Grant
    Filed: June 20, 1988
    Date of Patent: April 24, 1990
    Assignee: Reynolds Metals Company
    Inventors: Dennis W. Davis, Ray D. Peterson, Walter Posey, Jr.
  • Alumina reduction cell
    Patent number: 4919782
    Abstract: An improved alumina reduction cell is described in which the carbonaceous cathode includes refractory hard metal shapes forming the true cathode surface and inert refractory protective sleeves for the refractory hard metal shapes. Reduced amounts of refractory hard metal material are employed through an improved refractory hard metal support system.
    Type: Grant
    Filed: February 21, 1989
    Date of Patent: April 24, 1990
    Assignee: Reynolds Metals Company
    Inventor: Douglas V. Stewart
  • Resealable container closure
    Patent number: 4911323
    Abstract: An umbrella type resealable closure device is described. A metal container includes an end wall with a flanged region substantially surrounding a scored portion defining an openable panel. A resealable closure device incorporates a non-hooking closure structure on one side and a structure for separating the openable panel from the end wall on the opposite side.
    Type: Grant
    Filed: March 1, 1989
    Date of Patent: March 27, 1990
    Assignee: Reynolds Metals Company
    Inventors: Horst F. Arfert, Roger H. Donaldson, Eric L. Jensen, Wesley E. Smith
  • Conveying system
    Patent number: 4883166
    Abstract: A conveying system for relatively thin objects is disclosed. The system employs a grooved moving belt positioned at the bottom of a channel formed from replaceable side rails, with the side rails being shaped to conform generally to the upstanding object.
    Type: Grant
    Filed: September 9, 1985
    Date of Patent: November 28, 1989
    Assignee: Reynolds Metals Company
    Inventor: Charles F. Whitaker
  • Barrier film
    Patent number: 4880697
    Abstract: A multi-layer barrier film having heat seal properties to permit both fin and lap sealing is disclosed. The film comprises a pair of coextrusions that are adhesively bonded to one another.
    Type: Grant
    Filed: June 21, 1988
    Date of Patent: November 14, 1989
    Assignee: Reynolds Metals Company
    Inventors: Janice D. Caldwell, Walter H. Knox, III
  • Plastics film laminants
    Patent number: 4863770
    Abstract: Multi-layer plastics film laminate structures are disclosed. These structures have particular utility as inner and outer layers of multi-layer bag structures or as single layer bag structures, particularly for use in bag-in-box applications.
    Type: Grant
    Filed: September 26, 1988
    Date of Patent: September 5, 1989
    Assignee: Reynolds Metals Company
    Inventors: Walter H. Knox, III, Ronald E. Layne
  • Plastics film laminates
    Patent number: 4851272
    Abstract: Multi-layer plastics film laminate structures are disclosed. These structures have particular utility as inner and outer layers of multi-layer bag structures or as single layer bag structures, particularly for use in bag-in-box applications.
    Type: Grant
    Filed: August 26, 1988
    Date of Patent: July 25, 1989
    Assignee: Reynolds Metals Company
    Inventors: Walter H. Knox, III, Ronald E. Layne
  • Method of casting aluminum
    Patent number: 4850422
    Abstract: A method for improving the quality of aluminum ingots or billets formed by the direct chill method comprises applying a small amount of an insulating, nonreactive powder to the surface of the molten metal.
    Type: Grant
    Filed: April 10, 1986
    Date of Patent: July 25, 1989
    Assignee: Reynolds Metals Company
    Inventors: Carl L. Compton, James D. Newman
  • Water-based polyester coating compositions containing an alkylated amino resin and a water dispersible epoxy resin
    Patent number: 4847334
    Abstract: Coating compositions suitable for use as coatings or inks for metallic foils, such as aluminum foil, as well as for use on other materials, such as papers and plastics resin films, are disclosed. These compositions comprise a water dispersible polyester resin, an alkylated amino resin, a water dispersible epoxy resin and water. They may optionally include a pigment and other optional modifying ingredients. These compositions, being water-based, provide improved environmental compatibility and may be dried under relatively low temperatures without objectional ammonia residue odor.
    Type: Grant
    Filed: December 9, 1988
    Date of Patent: July 11, 1989
    Assignee: Reynolds Metals Company
    Inventor: Gerald L. Thompson
  • Process for producing aluminum-lithium alloys having improved superplastic properties
    Patent number: 4830682
    Abstract: A process for improving the properties of an aluminum-lithium product formed from a slab, such as an ingot or billet, of an aluminum-lithium alloy. Improved properties include superplastic response, reduced edge cracking during rolling, and reduced formation of stains during annealing. The process includes heating the slab to an elevated temperature to solutionize its soluble constituents, holding the slab at the elevated temperature to allow its soluble constituents to go into solution, cooling the slab to a rolling initiation temperature above about 650.degree. F. (343.degree. C.), and hot/warm rolling the slab to a desired gauge.
    Type: Grant
    Filed: May 25, 1988
    Date of Patent: May 16, 1989
    Assignee: Reynolds Metals Company
    Inventors: Richard F. Ashton, Bennie R. Ward
  • Corrosion resistant aluminum material
    Patent number: 4828794
    Abstract: An aluminum core alloy for use in the manufacture of brazed heat exchanger assemblies having high resistance to corrosion and moderate strength. A preferred composition of the aluminum base alloy consists of from 0.13 to 0.22% titanium, from 0.8 to 1.5% manganese, 0.4 to 0.6% copper, up to 0.7% iron, up to 0.3% silicon, up to 0.3% magnesium, with the balance being essentially aluminum and normal impurities. Another preferred composition, which is a modification of the preceding composition, includes 0.3 to 0.6% magnesium.
    Type: Grant
    Filed: March 6, 1987
    Date of Patent: May 9, 1989
    Assignee: Reynolds Metals Company
    Inventors: Darwin H. Scott, Kenneth D. Wade
  • Two piece package for paper baking cups
    Patent number: 4817801
    Abstract: A two-piece package for paper baking cups of conventional manufacture includes a plastic container having a base provided by a planar annular section with outer circumference and a recessed, circular inner portion and a shaped sidewall extending generally axially from the base outer circumference. The planar annular section which is at least 1/8 and preferably about 1/4 inch in radial width strengthens the base. The sidewall includes a first frustoconical portion having a height 80% or less and preferably 2/3 or less than the nominal height of paper baking cups received in the container. The sidewall further includes a circumferential lip at the mouth. A cover is provided with a plurality of regularly spaced indentations which are sharply radiused to mechanically engage with the lip of the container. Both the container and cover are provided with denesting structures for automated handling.
    Type: Grant
    Filed: March 6, 1987
    Date of Patent: April 4, 1989
    Assignee: Reynolds Metals Company
    Inventor: William E. Schwaikert
  • Non-contact apparatus and method for measuring the length of aluminum sheet and plate
    Patent number: 4805019
    Abstract: An apparatus and method for measuring the length and/or width of a piece of material, such as hot aluminum plate. The apparatus has a measuring range defined by a plurality of cameras. A video screen is selectively connectable to the cameras to depict their viewing ranges. The apparatus, after an operator has aligned an indicator with a depicted edge of material, automatically calculates the distance of the depicted edge from a fixed point, such as the centerline of a shear.
    Type: Grant
    Filed: September 10, 1987
    Date of Patent: February 14, 1989
    Assignee: Reynolds Metals Company
    Inventor: William H. Holliday
  • Resealable container closure
    Patent number: 4793510
    Abstract: A resealable closure device for use on metallic cans includes a metallic end wall having an opening surrounded by an upwardly extending and outwardly flaring beaded flange. The flexible closure element includes a central panel, a lever portion and a connecting portion connecting the lever portion to the central panel; the closure device is molded in an inverted umbrella position which is capable of being inverted to engage the flange of the opening; a skirt portion is provided on the interior side of the central panel of the flexible closure element to provide a degree of resistance to removal of the closure device from the opening by user.
    Type: Grant
    Filed: July 13, 1987
    Date of Patent: December 27, 1988
    Assignee: Reynolds Metals Company
    Inventors: Horst F. W. Arfert, Daniel F. Cudzik, Roger H. Donaldson
  • Measuring current distribution in an alumina reduction cell
    Patent number: 4786379
    Abstract: A method and apparatus are disclosed for measuring the current distribution in an alumina reduction cell. The apparatus includes sensors attached to the anodes of the cell, a remote computer system for receiving and correlating data received from the sensors and a means for transmitting and receiving the data from the sensors to the remote computer.
    Type: Grant
    Filed: February 22, 1988
    Date of Patent: November 22, 1988
    Assignee: Reynolds Metal Company
    Inventor: Wray M. Barnett
  • Recycling of spent potliner
    Patent number: 4784733
    Abstract: A method is disclosed for recycling spent potliner carbon from an aluminum reduction cell. The spent potliner is treated so as to avoid the cracking problem normally seen when the potliner is used in substantial amounts in Soderberg anodes.
    Type: Grant
    Filed: November 23, 1987
    Date of Patent: November 15, 1988
    Assignee: Reynolds Metals Company
    Inventors: Euel R. Cutshall, Luther O. Daley
  • Water-based polyester coating compositions containing an alkylated amino resin
    Patent number: 4783497
    Abstract: Coating compositions suitable for use as coatings or inks for metallic foils, such as aluminum foil, as well as for use on other materials, such as papers and plastics resin films, are disclosed. These compositions comprise a water dispersable polyester resin, an alkylated amino resin and water. They may optionally include a pigment and other optional modifying ingredients. These compositions, being water-based, provide improved environmental compatibility and may be dried under relatively low temperatures without objectional ammonia residue odor.
    Type: Grant
    Filed: December 16, 1985
    Date of Patent: November 8, 1988
    Assignee: Reynolds Metals Company
    Inventor: Gerald L. Thompson
  • Resealable container closure
    Patent number: RE32927
    Abstract: A resealable closure device for use on metallic cans is disclosed. The closure device comprises a metallic end including a flanged opening therein and a molded rubber or plastic element which is molded in an "inverted umbrella" position and which is capable of being inverted upon itself to seal onto the end.
    Type: Grant
    Filed: October 6, 1987
    Date of Patent: May 23, 1989
    Assignee: Reynolds Metals Company
    Inventors: Robert L. Taylor, Danny R. Sink, Daniel F. Cudzik
  • Container
    Patent number: D307238
    Type: Grant
    Filed: November 8, 1988
    Date of Patent: April 17, 1990
    Assignee: Reynolds Metals Company
    Inventor: Timothy J. May