Patents Represented by Attorney Paul Weinstein
  • Patent number: 5102620
    Abstract: Spray cast alloys having reduced porosity and increased ductility are provided as well as a process for the manufacture of the alloys. An effective amount of a reactive metal which reacts with the spray casting atmosphere but not with the desired alloy is dissolved into the alloy prior to spray casting. Preferred reactive metals readily form a nitride which is finely dispersed throughout the spray cast alloy.
    Type: Grant
    Filed: June 1, 1990
    Date of Patent: April 7, 1992
    Assignee: Olin Corporation
    Inventors: William G. Watson, Sankaranarayanan Ashok, Harvey P. Cheskis
  • Patent number: 5102648
    Abstract: A process for producing lithium hypochlorite which admixes an aqueous hypochlorous acid solution, having a concentration of 35 percent or greater by weight of HOCl, with an aqueous slurry of lithium hydroxide at a temperature in the range of from about 0.degree. to about 20.degree. to produce a solution of substantially pure lithium hypochlorite. The lithium hypochlorite solutions produced can be dried directly or concentrated by cooling. The solid lithium hypochlorite produced is a highly pure source of available chlorine.
    Type: Grant
    Filed: February 25, 1991
    Date of Patent: April 7, 1992
    Assignee: Olin Corporation
    Inventors: Budd L. Duncan, Larry D. Carpenter, Leslie R. Osborne, William T. Wooden
  • Patent number: 5103292
    Abstract: A metal pin grid array package and a process for the assembly of the package is provided. The package includes a metal or metal alloy base component having an ordered array of holes. Terminal pins are electrically interconnected to a desired circuit and extend through the ordered array of holes. A dielectric polymer sealant bonds a cover component to both the circuit and to the base component. During package assembly, the polymer sealant flows into the holes comprising the ordered array of holes electrically isolating the terminal pins from the base component.
    Type: Grant
    Filed: November 29, 1989
    Date of Patent: April 7, 1992
    Assignee: Olin Corporation
    Inventor: Deepak Mahulikar
  • Patent number: 5098796
    Abstract: A technique for improving the tarnish and oxidation resistance of copper and copper based alloy materials is disclosed. Copper or a copper alloy is immersed in an aqueous solution containing sodium hydroxide, zinc ions and chromium (VI) ions. While the compositional ranges may vary, the concentration of either zinc ions or chromium (VI) ions, or both, is less than 1.0 gm/1. A chromium-zinc coating is electrolytically applied. The coating provides tarnish resistance at temperatures in excess of 190.degree. C. The coating is removable by immerison in sulfuric acid. Improved results are obtained by rinsing deionized water containing a small amount of an alkaline or alkaline earth hydroxide.
    Type: Grant
    Filed: March 25, 1991
    Date of Patent: March 24, 1992
    Assignee: Olin Corporation
    Inventors: Lifun Lin, Chung-Yao Chao
  • Patent number: 5098864
    Abstract: A metal pin grid array package and a process for the assembly of the package is provided. The package includes a metal or metal alloy base component having an ordered array of holes. Terminal pins are electrically interconnected to a desired circuit and extend through the ordered array of holes. A dielectric polymer sealant bonds a cover component to both the circuit and to the base component. During package assembly, the polymer sealant flows into the holes comprising the ordered array of holes electrically isolating the terminal pins from the base component.
    Type: Grant
    Filed: January 14, 1991
    Date of Patent: March 24, 1992
    Assignee: Olin Corporation
    Inventor: Deepak Mahulikar
  • Patent number: 5099079
    Abstract: Described herein is a process for separating an acid impurity from a solution containing acid and a nitro substituted aromatic compound by contacting the solution with at least one molten nitrate salt.
    Type: Grant
    Filed: July 26, 1990
    Date of Patent: March 24, 1992
    Assignee: Olin Corporation
    Inventor: Allen B. Quakenbush
  • Patent number: 5098679
    Abstract: A process for treating an alkali metal hydrosulfite solution which comprises contacting the alkali metal hydrosulfite solution with aluminum in a reaction mixture, and admixing carbon dioxide gas with the reaction mixture to remove dissolved aluminum as an aluminum-containing precipitate, the alkali metal hydrosulfite solution having a residual alkalinity of from about 0.1 to about 20 grams per liter of hydroxide ion.
    Type: Grant
    Filed: July 17, 1991
    Date of Patent: March 24, 1992
    Assignee: Olin Corporation
    Inventor: Karl O. Knollmueller
  • Patent number: 5098487
    Abstract: A metal liner for a shaped charge device having a ductile metal matrix and a discrete second phase is provided. The allow composition is selected so the second phase is molten when the liner is accelerated following detonation. The molten phase reduces the tensile strength of the matrix so that the liner slug is pulverized on striking a well casing. The slug does not penetrate the hole perforated in the well casing by the liner jet and oil flow into the well bore is not impeded. The liner is formed by directly casting the desired alloy to the desired shape.
    Type: Grant
    Filed: November 28, 1990
    Date of Patent: March 24, 1992
    Assignee: Olin Corporation
    Inventors: Dennis R. Brauer, Frank N. Mandigo, Derek E. Tyler
  • Patent number: 5096508
    Abstract: A composite copper alloy having a modified surface is provided. An element or combination of elements both soluble in copper and reactive with nitrogen are cast with copper or a copper alloy forming a solid state solution. The alloy is reacted with a nitride former to modify the surface. A continuous surface film is formed by heating in a nitrogen containing gas. A dispersion of nitride precipitate in a copper matrix is formed by implanting nitrogen ions.
    Type: Grant
    Filed: July 27, 1990
    Date of Patent: March 17, 1992
    Assignee: Olin Corporation
    Inventors: John F. Breedis, George J. Muench, Deepak Mahulikar
  • Patent number: 5092970
    Abstract: A process for electrolytically producing an aqueous solution of chlorine dioxide in an electrolytic cell having an anode compartment, a cathode compartment, and at least one ion exchange compartment between the anode compartment and the cathode compartment, the process comprising feeding an aqueous solution of an alkali metal chlorite to the ion exchange compartment, electrolyzing an anolyte in the anode compartment to generate hydrogen ions, passing the hydrogen ions from the anode compartment through a cation exchange membrane into the ion exchange compartment to displace alkali metal ions and produce an aqueous solution of chlorine dioxide, and passing alkali metal ions from the ion exchange compartment into the cathode compartment.
    Type: Grant
    Filed: December 20, 1989
    Date of Patent: March 3, 1992
    Assignee: Olin Corporation
    Inventors: Jerry J. Kaczur, David W. Cawlfield
  • Patent number: 5091165
    Abstract: A calcium hypochlorite composition consists essentially of at least 75 percent by weight of Ca(OCl).sub.2, from about 6 to about 14 percent by weight of water, and less than 1.5 percent by weight of an alkali metal chloride. The novel composition provides increased amounts of sanitizing and disinfecting to, for example, water bodies while remaining safe with respect to thermal decomposition. Further, the composition reduces the rate of chlorine evolution during storage.
    Type: Grant
    Filed: July 23, 1990
    Date of Patent: February 25, 1992
    Assignee: Olin Corporation
    Inventors: John H. Shaffer, James K. Melton, Garland E. Hilliard
  • Patent number: 5089095
    Abstract: A process for producing chlorine dioxide by oxidizing a hypochlorous acid solution to produce a chloric acid solution, and, electrolyzing the chloric acid solution to produce chlorine dioxide.The novel process of the present invention provides a commercially viable process for producing the chloric acid and eliminates the formation of an acidic salt solution in the production of chlorine dioxide which requires disposal. Further, the process permits a reduction in the amount of acid required in the generation of chlorine dioxide.
    Type: Grant
    Filed: March 30, 1990
    Date of Patent: February 18, 1992
    Assignee: Olin Corporation
    Inventors: David W. Cawlfield, Jerry J. Kaczur, Budd L. Duncan, Sudhir K. Mendiratta, Ronald L. Dotson, Kenneth E. Woodard, Jr.
  • Patent number: 5084148
    Abstract: A process for electrolytically producing an aqueous solution of chloric acid and alkali metal chlorate in an electrolytic cell having an anode compartment, a cathode compartment, and at least one ion exchange compartment between the anode compartment and the cathode compartment. The process includes the steps of feeding an aqueous solution of an alkali metal chlorate to the ion exchange compartment, electrolyzing an anolyte in the anode compartment to generate hydrogen ions, passing the hydrogen ions from the anode compartment through a cation exchange membrane into the ion exchange compartment to displace alkali metal ions and produce an aqueous solution of chloric acid and alkali metal chlorate, and passing alkali metal ions from the ion exchange compartment into the cathode compartment.
    Type: Grant
    Filed: February 6, 1990
    Date of Patent: January 28, 1992
    Assignee: Olin Corporation
    Inventors: Jerry J. Kazcur, David W. Cawlfield, Kenneth E. Woodard, Jr., Budd L. Duncan
  • Patent number: 5074933
    Abstract: The invention provides a process for the manufacture of copper alloys having improved processability. The alloys are melted and atomized into droplets which are spray cast into a coherent deposit. The spray cast alloys are characterized by a finer dispersion of intermetallic than is possible by conventional casting. The alloys are capable of being cold rolled to a reduction of up to 70%. The spray cast alloys exhibit good electrical conductivity and a high yield strength. They are particularly suited for electrical spring contacts.
    Type: Grant
    Filed: July 25, 1989
    Date of Patent: December 24, 1991
    Assignee: Olin Corporation
    Inventors: Sankaranarayanan Ashok, John F. Breedis
  • Patent number: 5073521
    Abstract: A method for the assembly of an adhesively sealed tape package having base and cover components is provided. An electronic device is first bonded to the inner leads of a tape leadframe. The chip on tape is then disposed between the base component and the cover component and adhesively sealed to both. The electronic device and a portion of the inner leads are thereby encapsulated. In one embodiment the base and cover components are an aluminum base alloy having an anodization layer over at least those surfaces exposed to the external environment of the adhesive.
    Type: Grant
    Filed: November 15, 1989
    Date of Patent: December 17, 1991
    Assignee: Olin Corporation
    Inventor: Jeffrey S. Braden
  • Patent number: 5066416
    Abstract: A moldable detergent having a stable available halogen concentration suitable for use in industrial and institutional dishwashers is produced in a process which comprises:admixing an alkali metal polyphosphate compound, an alkali metal silicate compound, and an aqueous solution of an available halogen compound to form an available halogen containing mixture, andadmixing an alkali metal phosphate compound to produce a moldable detergent composition containing at least 50 percent by weight of solids and having an available halogen concentration of at least about 1 percent by weight.
    Type: Grant
    Filed: August 31, 1987
    Date of Patent: November 19, 1991
    Assignee: Olin Corporation
    Inventor: Douglas R. Martin
  • Patent number: 5066368
    Abstract: A process for producing electronic package components from an aluminum alloy is disclosed. The components have a black color through integral color anodization. The desired color, thickness and surface finish are achieved by regulation of amperage during anodization. The amperage is rapidly raised to in excess of 70 amps per square foot and then allowed to gradually decrease as a function of oxide growth while the voltage is maintained in excess of 70 volts.
    Type: Grant
    Filed: August 17, 1990
    Date of Patent: November 19, 1991
    Assignee: Olin Corporation
    Inventors: Anthony M. Pasqualoni, Deepak Mahulikar, Satish K. Jalota, Andrew J. Brock
  • Patent number: 5065228
    Abstract: A thin, preferably flexible circuit having multiple conductive planes separated by a non-conductive layer is provided. Conductive vias electrically interconnect the conductive planes. The conductive vias comprise carbon coated blind vias which are made conductive by the electrolytic deposition of a metal on the carbon. The invention is particularly suited for G-TAB wherein a first metal plane is patterned into signal plane circuit traces and a second metal plane is patterned into ground plane traces.
    Type: Grant
    Filed: April 4, 1989
    Date of Patent: November 12, 1991
    Assignee: Olin Corporation
    Inventors: Craig A. Foster, Randolfo Galvez, Kurt R. Raab
  • Patent number: 5062966
    Abstract: A process for decomposing a solution of a hydroxylammonium compound includes raising the pH of the solution to about 8 or higher and reacting the alkaline solution with a source of hypohalite ions. The process decomposes solutions of hydroxylammonium salts in a manner which produces benign liquid and gas effluents which can be readily disposed of or discharged.
    Type: Grant
    Filed: November 2, 1990
    Date of Patent: November 5, 1991
    Assignee: Olin Corporation
    Inventors: Ronald L. Dotson, Sanders H. Moore
  • Patent number: 5055285
    Abstract: A process for producing potassium hypochlorite solutions by admixing a hypochlorous acid solution having a concentration of 35 percent or greater by weight of HOCl with an aqueous slurry of potassium hydroxide containing 35 percent by weight or greater of KOH at a temperature below about 45.degree. C. The potassium hypochlorite solution produced has a concentration of at least 25 percent to about 60 percent by weight of KOCl.
    Type: Grant
    Filed: February 1, 1990
    Date of Patent: October 8, 1991
    Assignee: Olin Corporation
    Inventors: Budd L. Duncan, William O. Flowers