Patents Assigned to Olin
  • Process for preparing dinitrotoluene
    Patent number: 5057632
    Abstract: Described herein is a continuous process for preparing dinitrotoluene by reacting toluene with dilute nitric acid to produce mononitrotoluene, then reacting the mononitrotoluene with concentrated nitric acid to produce dinitrotoluene.
    Type: Grant
    Filed: October 22, 1990
    Date of Patent: October 15, 1991
    Assignee: Olin Corporation
    Inventors: Peter C. Imm, Allan B. Quakenbush
  • Anti-tarnish treatment of metal foil
    Patent number: 5057193
    Abstract: A method of imparting tarnish and corrosion resistance to a copper or copper alloy foil in which the foil is first coated with a thin layer of zinc on at least one side. Thereafter, the foil is treated with an aqueous solution of chromic acid and sulfuric acid. The foil may then be rinsed in a dilute basic solution having a pH greater than 8 and then dried.
    Type: Grant
    Filed: December 22, 1989
    Date of Patent: October 15, 1991
    Assignee: Olin Corporation
    Inventors: Lifun Lin, Ned W. Polan
  • Use of selected pyridine-2-thione-N-oxide compounds as growth promoters for poultry
    Patent number: 5057510
    Abstract: A method for improving the growth response in poultry comprising administering to said poultry a growth-promoting amount of at least one pyridine-2-thione-N-oxide compound selected from the group consisting of(a) a metallic salt of pyridine-2-thione-N-oxide;(b) 2,2'-dithiobispyridine-1,1'-dioxide; and(c) adducts of 2,2'-dithiobispyridine-1,1'-dioxide, the adducts having the formula(C.sub.5 H.sub.4 NOS).sub.2 MY.sub.twherein M is an alkaline earth metal selected from the group consisting of calcium, magnesium, barium and strontium, Y is an anion selected from the group consisting of halides, sulfates, nitrates, chlorates and acetates, and t is either 1 or 2.
    Type: Grant
    Filed: December 3, 1984
    Date of Patent: October 15, 1991
    Assignee: Olin Corporation
    Inventors: Jeffrey N. Davidson, John H. Wedig, John G. Babish, Richard A. McMillan
  • Process for producing a gel-free coagulated rubber with low ethylenic unsaturation
    Patent number: 5057601
    Abstract: This invention relates to a process for making nitrile rubber characterized by being essentially gel-free and at least about 90% saturated. The process comprising reacting an ethylenically unsaturated polymer in latex from, hydrazine, and an oxidant, followed by coagulation and filtration in order to isolate the reduced rubber. The process utilizes a reaction mixture containing a high molar ratio of hydrazine to unsaturated polymer.
    Type: Grant
    Filed: November 6, 1989
    Date of Patent: October 15, 1991
    Assignee: Olin Corporation
    Inventors: Henry W. Schiessl, Francis W. Migliaro, Jr.
  • Process for the production of highly pure concentrated solutions of potassium hypochlorite
    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
  • Static mixer configuration
    Patent number: 5053202
    Abstract: An improved static mixer for use in a plural component dispensing apparatus is disclosed having a spacer intermediate a plurality of mixing elements to enhance the mixing and blending of the plural components. The static mixer may employ an air assist to increase the mixing energy within static mixer.
    Type: Grant
    Filed: August 2, 1990
    Date of Patent: October 1, 1991
    Assignee: Olin Corporation
    Inventors: William P. Dwyer, Thomas P. Patrosh
  • Chemical vapor deposition (CVD) process for the thermally depositing silicon carbide films onto a substrate
    Patent number: 5053255
    Abstract: A thermal CVD process for forming silicon carbide-type films onto a substrate comprising the steps of:(a) introducing di-tert-butylsilane vapor into a CVD reaction zone containing said substrate on which a silicon carbide film is to be formed;(b) maintaining the temperature of said zone and said substrate at about 400.degree. C. to about 1,100.degree. C.;(c) maintaining the pressure in said zone at about 0.1 to about 10 torr; and(d) passing said vapor into contact with said substrate for a period of time sufficient to form a silicon carbide-type film thereon.
    Type: Grant
    Filed: July 13, 1990
    Date of Patent: October 1, 1991
    Assignee: Olin Corporation
    Inventor: Herman J. Boeglin
  • Unpressurized combustible primer for cannon cartridges
    Patent number: 5052302
    Abstract: A combustible bayonet type primer for combustible cannon cartridge cases comprises a primer head assembly adapted to be inserted in a cartridge case, a tubular housing made of a combustible material, an igniter strand axially disposed in said housing, and a confining means for confining one end of the igniter strand so that the initial ignition rate is about 1000 m/s. The ignited strand in turn ignites a black powder charge contained within a cloth bag within the tubular housing. The housing is an unpressurized container for the igniter strand and the black powder charge and is consumed during the burn of the propellant bed along with the igniter strand and the combustible case.
    Type: Grant
    Filed: July 26, 1990
    Date of Patent: October 1, 1991
    Assignees: Olin Corporation, United States Government Department of Defense
    Inventors: Ralph M. Taddeo, Robert W. Deas, Lang-Mann Chang, John Grosh
  • Cartridge heater for foam dispensing apparatus
    Patent number: 5050776
    Abstract: In a polyurethane foam dispensing apparatus there is provided a foam gun block heater for the isocyanate and the polyol feed lines to prevent cold shots from occuring when the foam dispensing apparatus is initially used.
    Type: Grant
    Filed: January 2, 1990
    Date of Patent: September 24, 1991
    Assignee: Olin Corporation
    Inventor: William F. Rosenplanter
  • Combustible cartridge case base
    Patent number: 5048421
    Abstract: An ammunition cartridge comprises a combustible tubular case having a threaded open end having a uniform density of plastic resin at said end. A generally cup shaped head having a cylindrical peripheral wall provided with threads corresponding to said threaded open end is engaged with the threaded end so as to close the end. The resin is preferably a polyurethane resin and the threads are preferably 60 degree stub threads.
    Type: Grant
    Filed: August 6, 1990
    Date of Patent: September 17, 1991
    Assignee: Olin Corporation
    Inventor: Terry L. Swartout
  • Electrostatic transfer device
    Patent number: 5049942
    Abstract: An apparatus to perform the electrostatic transfer of a developed image from a master having a permanent latent image therein to a receiving surface in which the master is moved between a first position remote from said receiving surface to a second position in overlying relation with said receiving surface for image transfer. A wicking station is moveable between a first position and a second position to deposit an insulating solvent on said receiving surface and return to its first position at a slower speed than the speed of the master returning to its first position. Gap spacer strips are provided which are played out over the receiving surface as the wicking station moves to its second position. The gap spacer strips in combination with a drive motor serve to return the wicking station to its first position.
    Type: Grant
    Filed: January 2, 1990
    Date of Patent: September 17, 1991
    Assignee: Olin Corporation
    Inventor: David P. Bujese
  • Glass/ceramic sealing system
    Patent number: 5047371
    Abstract: The present invention relates to a glass/ceramic sealing system. A sealing glass having a coefficient of thermal expansion in excess of 160.times.10.sup.-7 in/in/.degree. C. is provided. The glass is useful for matched sealing of copper and copper based alloys. The glass is capable of ceramization, greatly increasing the resistance of the glass to moisture penetration and fracture due to mechanical damage. The temperature of ceramization has been designed so that a solutionized copper alloy leadframe is age hardened during ceramization. The glass has particular utility in the manufacture of electronic packages and multi-layer circuitry.
    Type: Grant
    Filed: September 2, 1988
    Date of Patent: September 10, 1991
    Assignee: Olin Corporation
    Inventor: Satyam C. Cherukuri
  • Terminal pins for flexible circuits
    Patent number: 5046971
    Abstract: The present invention relates to a terminal pin for electronic circuitry. The terminal pin includes an axial passageway. Various processes for electrically connecting the pin to the circuit are provided. The processes include riveting, welding and soldering. The axial passageway aids in the control of metal deformation to improve the bond between the pin and the circuitry.
    Type: Grant
    Filed: July 30, 1990
    Date of Patent: September 10, 1991
    Assignee: Olin Corporation
    Inventors: Murray A. Ruggiero, Kin S. Chang, George A. Anderson, Robert T. Brooker
  • Hermetic cerglass and cermet electronic packages
    Patent number: 5043535
    Abstract: The invention relates to a process for coating sintered cermet or cerglass articles with a metal or metal alloy. The process is particularly useful to eliminate pores and cavities from the surface of the article. During hermeticity testing, these pores and cavities trap tracer gas and result in an erroneous leak rate measurement. In one embodiment, the coated surfaces are subsequently coated with a second metal layer by immersion plating followed by electrolytic deposition. The process is particularly suited to the manufacture of cermet and cerglass components for semiconductor packages.
    Type: Grant
    Filed: March 10, 1989
    Date of Patent: August 27, 1991
    Assignee: Olin Corporation
    Inventor: Lifun Lin
  • Metal electronic package having improved resistance to electromagnetic interference
    Patent number: 5043534
    Abstract: A metal electronic package is provided having improved electromagnetic interference shielding. Metal base and cover components are electrically interconnected to remain at same voltage potential thereby reducing EMI induced mutual inductance. An electrically conductive conduit, such as a contact pin, provides interconnection. If the electronic device is mounted on a chip pad attach, the conductive conduit also connects to the support pads of the chip attach.
    Type: Grant
    Filed: July 2, 1990
    Date of Patent: August 27, 1991
    Assignee: Olin Corporation
    Inventors: Deepak Mahulikar, Jeffrey S. Braden, Stephen P. Noe
  • Metal sealing glass composite with matched coefficients of thermal expansion
    Patent number: 5043222
    Abstract: The present invention relates to a glass for making glass to metal seals. The coefficient of thermal expansion of the glass is in excess of 160.times.10.sup.-7 in/in/.degree.C. making the glass particularly useful for sealing copper and copper based alloys. The glass has particular utility in the manufacture of electronic packages and multi-layer circuitry.
    Type: Grant
    Filed: April 23, 1990
    Date of Patent: August 27, 1991
    Assignee: Olin Corporation
    Inventor: Satyam C. Cherukuri
  • Electrochemical method for producing chlorine dioxide solutions
    Patent number: 5041196
    Abstract: An electrochemical process and electrolytic cell for manufacturing chlorine-free chlorine dioxide from dilute alkali metal chlorite solutions in a single step is disclosed. The electrolytic cell uses a porous flow-through anode and a cathode separated by a suitable separator.
    Type: Grant
    Filed: December 26, 1989
    Date of Patent: August 20, 1991
    Assignee: Olin Corporation
    Inventors: David W. Cawlfield, Jerry J. Kaczur
  • Composite valving rod scraper device and cartridge
    Patent number: 5040728
    Abstract: A composite valving rod is provided for use in a foam dispensing apparatus having a low friction material sleeve portion that is retained by scraping surfaces on opposing ends which both maintain the physical dimensions of the plastic sleeve and serve as scraper when drawn through the bore of the foam dispensing cartridge. The cartridge is non-resilient and has at least one elongated groove therein to receive the scraped residual foam.
    Type: Grant
    Filed: February 26, 1990
    Date of Patent: August 20, 1991
    Assignee: Olin Corporation
    Inventors: John F. Zwirlein, Jr., William F. Rosenplanter
  • Bubbler container automatic refill system
    Patent number: 5038840
    Abstract: A quick disconnnect connection for a bulk chemical supply container in an automatic refill system for a liquid chemical temperature controller is provided wherein replenishing liquid chemical is automatically supplied from the bulk chemical supply unit to a bubbler ampule in the liquid chemical temperature controller. The quick disconnect connection has shutoff valves that isolate the bulk chemical supply container to prevent depth contamination of the replenishing chemical upon connection and disconnection of the bulk supply chemical container from the automatic refill system.
    Type: Grant
    Filed: September 20, 1990
    Date of Patent: August 13, 1991
    Assignee: Olin Corporation
    Inventor: David L. Fair
  • Industrial shotgun
    Patent number: 5038507
    Abstract: An industrial shotgun is provided with a pistol type hand grip assembly, a remote trigger mechanism, and a hanging support bracket at approximately the center of mass of the industrial gun. The remote trigger mechanism includes a remote trigger coupled from the hand grip to the trigger through a horizontal linking bar. The trigger is disengaged from the remote trigger when the breech block is opened. The hand grip includes a dead man safety which prevents remote trigger actuation unless the thumb operated dead man safety is depressed and the breech block is fully closed.
    Type: Grant
    Filed: August 22, 1990
    Date of Patent: August 13, 1991
    Assignee: Olin Corporation
    Inventor: William G. Dennis, Jr.