Patents Assigned to Olin
  • Membrane-electrode pack alkali chlorine cell
    Patent number: 4451346
    Abstract: A novel commercial chlor-alkali electrolytic cell which has a pack of less than about 50 interleaved parallel planar electrode frames and substantially horizontal conductor rods. The pack is at least half and preferably twice as tall as it is thick.
    Type: Grant
    Filed: June 25, 1981
    Date of Patent: May 29, 1984
    Assignee: Olin Corporation
    Inventor: Morton S. Kircher
  • Recycling of flexible polyurethane foam scrap
    Patent number: 4451583
    Abstract: A reaction mixture containing comminuted, flexible polyurethane foam scrap is used in making new flexible polyurethane foam. The process achieves a highly satisfactory utilization of foam scrap, while providing a quality foam product.
    Type: Grant
    Filed: January 26, 1982
    Date of Patent: May 29, 1984
    Assignee: Olin Corporation
    Inventor: Edwin T. Chesler
  • Process and apparatus for electromagnetic casting of multiple strands having individual head control
    Patent number: 4450890
    Abstract: A multi-strand apparatus and process for casting molten material into at least two ingots of desired shape. Structure is provided for receiving and electromagnetically forming the molten material into ingots of desired shape. Each of the receiving and forming structures includes an inductor for applying an electromagnetic force field to the molten material. When the inductor is in operation, it is spaced from the molten material by a gap extending from the surface of the molten material to the opposing surface of the inductor. The improvement comprises a device for distributing a common alternating current to the inductors to generate the magnetic fields. A device is provided for minimizing variations in the gaps during operation of the casting apparatus.
    Type: Grant
    Filed: August 19, 1981
    Date of Patent: May 29, 1984
    Assignee: Olin Corporation
    Inventors: John C. Yarwood, Gary L. Ungarean, Peter J. Kindlmann, Derek E. Tyler
  • Process for removing aluminum and silica from alkali metal halide brine solutions
    Patent number: 4450057
    Abstract: A process for removing dissolved aluminum and silica contaminants from concentrated alkali metal halide brines used in membrane electrolytic cells is disclosed. The process involves contacting an acidified brine at a pH of between about 2.0 and about 3.0 with a strong macroreticular cationic chelating resin.
    Type: Grant
    Filed: November 18, 1983
    Date of Patent: May 22, 1984
    Assignee: OLIN Corporation
    Inventor: Pilar P. Kelly
  • Raney alloy coated cathode for chlor-alkali cells
    Patent number: 4450056
    Abstract: An improved cathode with a conductive metal core and a Raney-type catalytic surface predominantly derived from an adherent Beta (NiAl.sub.3) crystalline precursory outer portion of the metal core is disclosed. Further, the precursory outer portion preferably has ruthenium added to give a precursor alloy having the formula (Ni-Ru)Al.sub.3 where the ruthenium content of the nickel-ruthenium portion is within the range of from about 5 to about 15 weight percent. Also disclosed is a method of producing a low overvoltage cathode. The method includes the steps of taking a Ni-Ru alloy core or substrate and coating it with aluminum, then heat treating to form a Ni-Ru-Al ternary alloy with mostly a Beta structure and then leaching out the Al to produce a Raney surface.
    Type: Grant
    Filed: March 28, 1983
    Date of Patent: May 22, 1984
    Assignee: Olin Corporation
    Inventor: Thomas J. Gray
  • Process and apparatus for electromagnetic casting of multiple strands having individual head control
    Patent number: 4446909
    Abstract: A multi-strand apparatus and process for casting molten material into ingots of desired shape. A plurality of structures are provided for receiving and electromagnetically forming the molten material into the desired shape. Each receiving and forming structure includes an inductor for applying a magnetic force field to the molten material. When the inductor is in operation, it is spaced from the molten material by a gap extending from the surface of the molten material to the opposing surface of the inductor. Structure is provided for distributing a current in the inductor to generate the magnetic field. The improvement comprises a device arranged below the inductor for modifying the current distribution in the inductor to minimize the variations in the gap.
    Type: Grant
    Filed: June 7, 1983
    Date of Patent: May 8, 1984
    Assignee: Olin Corporation
    Inventors: John C. Yarwood, Gary L. Ungarean, Peter J. Kindlmann, Derek E. Tyler
  • Infrared imaging for electromagnetic casting
    Patent number: 4446908
    Abstract: A process and apparatus for determining the value of parameters which affect emissivity of radiation from a metal load in an electromagnetic casting system. Infrared radiation being emitted from the surface of the load is sensed by an array of fiber optic filaments secured within elements of the electromagnetic casting system. Radiation signals are transmitted by the filaments to a signal processor which enables readout display of electromagnetic casting parameters such as liquid temperature, maximum load temperature, position of the liquid/solid interface, and head position.
    Type: Grant
    Filed: September 25, 1981
    Date of Patent: May 8, 1984
    Assignee: Olin Corporation
    Inventors: Gary L. Ungarean, John C. Yarwood
  • Method for electrically perforating dielectric webs
    Patent number: 4447709
    Abstract: A method is provided for controlling the porosity of a web or film issuing from an electric spark perforating apparatus in accordance with an operator-set reference porosity regardless of variations in web speed, inherent web porosity, spark discharge energy and spark repetition frequency by controlling the frequencies of the electrical sparks applied to the web in accordance with the product of two signals, one a difference signal obtained by comparing the porosity of the web leaving the perforator and the reference porosity and the other signal derived from the speed of the web.
    Type: Grant
    Filed: December 21, 1979
    Date of Patent: May 8, 1984
    Assignee: Olin Corporation
    Inventor: Hobart A. Whitman, III
  • Gas scavenger agents for containers of solid chloroisocyanurates
    Patent number: 4444316
    Abstract: Chlorine-containing gases which may be formed in containers of solid chloroisocyanurates such as trichloroisocyanuric acid are adsorbed and decomposed by a gas scavenging agent consisting essentially of silica gel, an alkali metal bicarbonate, and carbon. The gas scavenger is preferably enclosed in a gas permeable spun-bonded polyolefin envelope. The scavenging agent adsorbs moisture, absorbs and decomposes nitrogen trichloride, removes chlorine, and neutralizes hydrogen chloride formed. The gas scavenging mixture is physically compatible and readily blended while minimizing dusting during packaging operations.
    Type: Grant
    Filed: September 3, 1982
    Date of Patent: April 24, 1984
    Assignee: Olin Corporation
    Inventor: John M. Casberg
  • Auto-fire assembly for industrial shotgun
    Patent number: 4444088
    Abstract: An improved auto-fire assembly for an industrial gun of 8 gauge or larger which releases the trigger of the gun in response to the breech block of the gun being fully placed in closed breeching position.The mechanism presented provides a trip arm to be contacted by the industrial gun operating lever, with the trip arm on a shaft rotatably mounted on the stop bracket limiting breech opening. The resultant simplified structure enables easy modification of existing lanyard operated guns to include autofire capability.
    Type: Grant
    Filed: March 8, 1982
    Date of Patent: April 24, 1984
    Assignee: Olin Corporation
    Inventor: Richard H. Olson
  • Reduction of available chlorine in alkali brines
    Patent number: 4443307
    Abstract: A process is described for removing available chlorine from a depleted recirculating anolyte brine of a chlor-alkali cell. After the spent brine is removed from the cell, and typically after dechlorination, it is reacted with an amount of an organic hydroxyl moiety-containing compound soluble in said brine for a residence time sufficient to substantially reduce the residual dissolved chlorine and hypohalite ion remaining in said brine prior to resaturation and reuse in said cell. Suitable hydroxyl moiety-containing compounds include alcohols and saccharides.
    Type: Grant
    Filed: March 21, 1983
    Date of Patent: April 17, 1984
    Assignee: Olin Corporation
    Inventors: Sanders H. Moore, Maurice R. Smith
  • Surfactant washing of polychloroisocyanuric acids
    Patent number: 4443600
    Abstract: A process for the production of a polychloroisocyanuric acid filter cake having reduced moisture and salt content leading to quicker drying and a purer product is disclosed. Such a result is achieved by the addition of between about 50 and about 500 ppm of a suitable surfactant wetting agent to the water used to wash the cake after it is filtered from the reaction mass. Preferred surfactant wetting agents are alkoxylated alkyl alcohols and sodium dialkyl sulfosuccinates.
    Type: Grant
    Filed: July 6, 1982
    Date of Patent: April 17, 1984
    Assignee: Olin Corporation
    Inventors: Wayne H. Hammond, George V. Jones
  • Process for forming a protective film on Cu-Sn alloys
    Patent number: 4443274
    Abstract: A heat treatment for providing copper-tin alloys with a substantially continuous tin-phosphorous-oxide protective layer that improves the appearance and the tarnish resistance of the alloys is disclosed. The heat treatment comprises heating the alloys in a reducing atmosphere having a dew point of at least about 65.degree. F. and a temperature in the range of about 700.degree. C. to about 900.degree. C. for a time in the range of about 2 hours to about 24 hours.
    Type: Grant
    Filed: December 3, 1982
    Date of Patent: April 17, 1984
    Assignee: Olin Corporation
    Inventors: Andrew J. Brock, Frank N. Mandigo
  • Electrolytic cell with sealing means
    Patent number: 4441977
    Abstract: The invention relates to an electrolytic cell which is comprised of a first frame member housing an electrode and a second frame member housing an electrode. A separator is positioned between the first frame member and the second frame member. A first sealing means contacts a side of the first frame member and one side of the separator. Contacting the second frame member is a second sealing means having a raised portion which also contacts a side of the separator. Pressing means are provided which press the frames together against the sealing means and the separator to form a substantially fluid-tight seal. The novel electrolytic cells provide the advantages of simultaneously:a. controlling gasket compression pressures,b. controlling gasket frame surface structural forces,c. efficiently forming a seal, andd. preventing gasket slippage.
    Type: Grant
    Filed: November 5, 1980
    Date of Patent: April 10, 1984
    Assignee: Olin Corporation
    Inventor: James M. Ford
  • Process for cooling and solidifying continuous or semi-continuously cast material
    Patent number: 4441542
    Abstract: A process for casting a material comprising a casting system for said material including a coolant application device. The coolant application device comprises a fluidized bed cooling system. The casting system may be a continuous or semi-continuous one and preferably employs an electromagnetic mold.
    Type: Grant
    Filed: June 10, 1981
    Date of Patent: April 10, 1984
    Assignee: Olin Corporation
    Inventors: Michael J. Pryor, Peter E. Sevier
  • Inlet end box brine pipe baffle
    Patent number: 4440614
    Abstract: In a flowing mercury cathode electrolytic cell for the electrolysis of aqueous solutions there is provided an improved brine flow baffle insertable into the brine inlet trough.
    Type: Grant
    Filed: November 10, 1983
    Date of Patent: April 3, 1984
    Assignee: Olin Corporation
    Inventors: Don E. Reynolds, James F. Pickering
  • Composite copper nickel alloys with improved solderability shelf life
    Patent number: 4441118
    Abstract: A composite structure having improved solderability shelf life and contact resistance is formed by coating a copper alloy substrate material with a tin-containing material. The copper alloy substrate material consists essentially of about 15% to about 30% nickel and the balance essentially copper. The copper alloy may further include up to about 25% zinc. The nickel in the alloy retards the growth of copper-tin and/or copper-zinc-tin intermetallic compounds and the diffusion of the copper through the coating. The coating may be formed from tin or tin alloys including tin solders, e.g. 60% Tin-40% lead solder.
    Type: Grant
    Filed: January 13, 1983
    Date of Patent: April 3, 1984
    Assignee: Olin Corporation
    Inventors: Julius C. Fister, John F. Breedis
  • Composite fiber reinforced plastic frame
    Patent number: 4439298
    Abstract: A composite fiber reinforced plastic frame is provided wherein a core material at least partially formed from the continuous wrapping of roved layers of glass fiber impregnated with a catalyzed thermosetting resin within a corrosion resistant liner and the frame is reinforced at the corners.
    Type: Grant
    Filed: July 26, 1982
    Date of Patent: March 27, 1984
    Assignee: Olin Corporation
    Inventors: James M. Ford, Robert A. Dean, Kenneth E. Woodard, Jr., Antonio Branco
  • Modified polyurethane liquid polymer compositions
    Patent number: 4439576
    Abstract: A novel, heat curable, liquid polymer composition is disclosed which comprises a modified polyurethane oligomer containing terminal ethylenic unsaturation, a free radical generating catalyst, and at least one additional component selected from a reinforcing agent and a filler. The cured composition demonstrates desirable impact properties and is particularly useful in automotive body constructions.
    Type: Grant
    Filed: September 29, 1981
    Date of Patent: March 27, 1984
    Assignee: Olin Corporation
    Inventors: James M. O'Connor, Donald L. Lickei, Michael L. Rosin
  • Modified polyurethane liquid polymer compositions
    Patent number: 4439577
    Abstract: A novel, heat curable, liquid polymer composition is disclosed which comprises a modified polyurethane oligomer containing terminal ethylenic unsaturation and a free radical generating catalyst. In a preferred embodiment, the polymer composition further includes at least one additional component selected from a reinforcing agent and a filler.
    Type: Grant
    Filed: April 1, 1982
    Date of Patent: March 27, 1984
    Assignee: Olin Corporation
    Inventors: James M. O'Connor, Donald L. Lickei, Michael L. Rosin