Patents Assigned to Olin
  • Copper alloy clad for coinage
    Patent number: 5472796
    Abstract: There is provided a metallic composite useful for coinage. The core is formed from a copper alloy that contains between 50% and 99.0% copper, has a room temperature electrical conductivity in excess of 25% IACS an initial yield strength in excess of 10,000 psi and a dynamic softening response onset at a temperature in the range of 200.degree. C.-400.degree. C. The cladding layers have an initial yield strength more than that of the core and a gold color. The strengthening response of the core during cladding is similar to that of the cladding layers making the metallic composites resistant to corrugation. Reducing corrugation increases the sensitivity of electromagnetic coin discriminators.
    Type: Grant
    Filed: January 13, 1995
    Date of Patent: December 5, 1995
    Assignee: Olin Corporation
    Inventors: John F. Breedis, Derek E. Tyler
  • Rocket propellant pressurization system using high vapor pressure liquids
    Patent number: 5471833
    Abstract: There is provided a system for expelling a liquid fuel component from a tank to a rocket engine utilizing a pressurized gas to displace the propellant. A pressurized high vapor pressure liquid is combined with the pressurized gas reducing the volume of pressurizing agent required to expel a desired volume of the liquid fuel component. Since the volume of pressurizing gas is less, the weight of the propelled craft may be reduced or additional fuel carried. In another embodiment of the invention, the vapor phase of the high vapor pressure liquid is used as a reference pressure to control other systems.
    Type: Grant
    Filed: October 6, 1993
    Date of Patent: December 5, 1995
    Assignee: Olin Corporation
    Inventor: Donald A. Pahl
  • Water resistant shot wad
    Patent number: 5471931
    Abstract: A water resistant shotshell has an internal moisture seal to preclude moisture intrusion into the propellant charge. The seal is at least one flexible tapered lip on the plastic shot wad which is compressed against the inside surface of the shotshell tube over the powder charge. The preferred embodiment is a two piece shot wad having a shot cup portion and a wad portion. The wad portion has a central disk portion and a tubular rim terminating in a pair of opposing flexible lips which provide a dual moisture seal.
    Type: Grant
    Filed: November 1, 1994
    Date of Patent: December 5, 1995
    Assignee: Olin Corporation
    Inventor: Robert J. Gardner
  • Process for preparing 2,6-dichloropyridine
    Patent number: 5468864
    Abstract: The present invention relates to a process for preparing 2,6-dichloropyridine which comprises reacting an organic solvent-free, catalyst-free reaction mixture comprising 2-chloropyridine and chlorine in the presence of a hydrogen chloride scavenger and ultraviolet light, and optionally in the presence of added moisture, at a temperature of between about 90.degree. C. and about 185.degree. C. Also claimed is a method for preventing calcium chloride plugging of the chlorine feed stream and for preventing calcium chloride build-up in the above reaction mixture which comprises adding moisture in the form of water or steam, or a combination thereof, to the reaction mixture prior to, or during, the reaction of said process.
    Type: Grant
    Filed: February 3, 1994
    Date of Patent: November 21, 1995
    Assignee: Olin Corporation
    Inventors: Rahim Hani, Richard H. Dumas, David F. Gavin, Charles H. Harrison, Michael A. Kennedy, Henry W. Schiessl, Robert E. McMahon, Steven A. Manke
  • Primer
    Patent number: 5465665
    Abstract: A primer including a primer head assembly and a hollow tubular one-piece body attached thereto. The outer surface of the body tapers to its smallest diameter at the forward end thereof and also includes a screw driver tip at its forward end to assist in the insertion of the primer into the propellant charge within the cartridge case as the primer is being attached to the cartridge case. The body is a high temperature, high glass high carbon composite thermoplastic material.
    Type: Grant
    Filed: October 29, 1993
    Date of Patent: November 14, 1995
    Assignee: Olin Corporation
    Inventor: Steven F. Diehl
  • Fire suppressing apparatus for generating steam from a water-ice mixture
    Patent number: 5465795
    Abstract: There is disclosed an a flame suppressing composition and an apparatus for suppressing a fire. The composition contains a propellant and an effective amount of magnesium carbonate. One apparatus directs the effluent of a propellant at a mixture of ice and water to generate superheated steam. Preferably, the effluent is a mixture of hot gases and solid particulate directed by a nozzle to impinge upon the mixture of ice and water.
    Type: Grant
    Filed: April 3, 1995
    Date of Patent: November 14, 1995
    Assignee: Olin Corporation
    Inventors: Lyle D. Galbraith, Gary F. Holland, Donald R. Poole, Robert M. Mitchell
  • Arcjet anode
    Patent number: 5464961
    Abstract: There is disclosed an anode for an arcjet thruster which resists erosion during start-up on constriction during steady-state operation. The anode includes a converging upstream portion, a diverging downstream portion and a constricted portion disposed therebetween. In one embodiment of the invention, rails formed in the constricted portion accelerate the passage of an arc during start-up reducing erosion. In a second embodiment, a higher strength material resists bulging as a result of the thermal gradient within the nozzle.
    Type: Grant
    Filed: September 10, 1993
    Date of Patent: November 7, 1995
    Assignee: Olin Corporation
    Inventor: Paul G. Lichon
  • Polyisocyanates containing uretidione and allophanate groups, a process for their production, and their use in one and two component coating compositions
    Patent number: 5461135
    Abstract: Disclosed herein is a liquid, monoallophanate-containing, monouretidione-containing polyisocyanate composition characterized by having (i) an isocyanate functionality of between 2.8 and 6.5, (ii) a free NCO content of 10% to 47% by weight, (iii) a viscosity of less than 1000 cp (25.degree. C.), and (iv) the presence of monouretidione and monoallophanate groups in a molar ratio of said monouretidione groups to said monoallophanate groups of between about 20:1 and about 1:5. Also disclosed is a process for producing the above compositions, as well as their use, optionally in blocked form in one or two component coating compositions.
    Type: Grant
    Filed: September 23, 1994
    Date of Patent: October 24, 1995
    Assignee: Olin Corporation
    Inventors: Adam G. Malofsky, Stephen L. Goldstein
  • Dialkyl amino pyridine catalysts which are bound to inorganic matrices and processes for their preparation
    Patent number: 5461020
    Abstract: This invention relates to a catalyst composition comprising the reaction product of (a) an inorganic substrate containing a reactive hydroxyl group and selected from the group consisting of silica compounds, alumina compounds, and combinations thereof, (b) a catalyst containing terminal unsaturation and selected from the group consisting of 4-dialkylamino pyridines, 4-(N-arylalkyl-N-alkyl)amino pyridines, and combinations thereof, and (c) a hydrosilane. Also disclosed is a process for making the catalyst composition, as well as the catalyst composition by empirical structural formula.
    Type: Grant
    Filed: May 11, 1994
    Date of Patent: October 24, 1995
    Assignee: Olin Corporation
    Inventors: Stephen L. Goldstein, Anthony D. Hamer, Lawrence E. Katz, Michael J. McGeary, Curtis P. Smith
  • Low-foaming, enhanced wetting dye-leveling agent
    Patent number: 5460632
    Abstract: The present invention relates to an acid dye-leveling composition that is useful for imparting a dye leveling characteristic to fibers prior to, or during, the fiber dyeing operation. Also described is a process for preparing the dye-leveling composition, as well as a process for using the composition in the dyeing of fibers. The composition is particularly useful for treating polyamide fibers, such as nylon, but is also suitably used in the treatment of silk, wool, and other synthetic and natural fibers. The composition is also useful as a hard surface cleaner, adhesive additive, and a leveling agent for paints.
    Type: Grant
    Filed: December 29, 1994
    Date of Patent: October 24, 1995
    Assignee: Olin Corporation
    Inventors: Murray A. Ruggiero, Bruce A. Marien
  • Control for electroluminescent loads
    Patent number: 5457359
    Abstract: A control for an electroluminescent panel which utilizes a resonant switch, preferably comprising two silicon-controlled rectifiers mounted anti-parallel. The amplitude of the output voltage of the resonant switch going the panel is changed by changing the voltage at which the switch is turned on. The voltage in the panel is resonated from one polarity through zero to the opposite polarity.
    Type: Grant
    Filed: February 16, 1995
    Date of Patent: October 10, 1995
    Assignee: Olin Corporation
    Inventor: Steven D. Meyer
  • Broad range moisture analyzer and method
    Patent number: 5454258
    Abstract: An analyzer and method for detecting and measuring the water content of a fluid sample in which a stream of the fluid sample is mixed with and diluted by a dry gas to lower the water content of the resulting sample stream. The resulting sample stream is passed through a moisture detector which provides an electrical signal indicative of the amount of water in the diluted sample.
    Type: Grant
    Filed: May 9, 1994
    Date of Patent: October 3, 1995
    Assignee: Olin Corporation
    Inventor: Italo A. Capuano
  • Chamfered electronic package component
    Patent number: 5455386
    Abstract: There is disclosed an adhesively sealed electronic package in which a compensation apparatus is provided for excess adhesive. As a result, excess adhesive does not extend beyond the package perimeter, squeeze-out, or travel along the inner lead fingers interfering with wire bonding. The compensation is a chamfer on the peripheral edges and/or interior edges of the package base component and cover component.
    Type: Grant
    Filed: January 14, 1994
    Date of Patent: October 3, 1995
    Assignee: Olin Corporation
    Inventors: George A. Brathwaite, German J. Ramirez, Michael A. Holmes, Paul R. Hoffman, Dexin Liang
  • Semiconductor package with chip redistribution interposer
    Patent number: 5455387
    Abstract: An electronic package with a semiconductor chip, a lead frame, a metal casing, and a redistribution interposer. The chip is mounted on the interposer and wirebonded to first ends of redistribution leads of the interposer. The redistribution leads have second ends orientated in a general flipped orientation relative to their corresponding first ends. The second ends are wirebonded to pads of the lead frame. The interposer allows smaller chips to be used in the package without changing the lead frame. The interposer also allows the chip to be flip-mounted in the package without changing the lead frame or casing, this allows redirection of the chip's thermal path.
    Type: Grant
    Filed: July 18, 1994
    Date of Patent: October 3, 1995
    Assignees: Olin Corporation, Cyrix Corporation, International Business Machines Corporation
    Inventors: Paul R. Hoffman, Keshav B. Prasad, Thomas Caulfield, Sean T. Crowley
  • Dye-leveling and cleaning composition containing an aqueous organic sulfonate plus an alcohol alkoxylate diluent
    Patent number: 5451238
    Abstract: The present invention relates to an acid dye-leveling composition that is useful for imparting a dye-leveling characteristic to fibers, as well as acting as a cleaner for hard surfaces or for fibers. The composition comprises (a) the reaction product of a piperazine compound, a piperazinone compound, an amine compound, or a combination thereof, with an alkyl diphenyl ether sulfonic acid, and (b) an alcohol alkoxylate.
    Type: Grant
    Filed: May 13, 1994
    Date of Patent: September 19, 1995
    Assignee: Olin Corporation
    Inventors: Murray A. Ruggiero, Robert P. Roth, Joseph T. Farrell, A. R. Vanover
  • Apparatus and method for suppressing a fire
    Patent number: 5449041
    Abstract: An apparatus for suppressing a fire comprises a gas generator in communication with a vaporizable liquid by means of a first conduit. When activated, the gas generator generates an elevated temperature burst of a first gas containing carbon dioxide, nitrogen, and/or water vapor. This first gas vaporizes substantially all of the vaporizable liquid, generating a second gas having flame suppressing capabilities. The second gas is directed at the fire to suppress and extinguish it.
    Type: Grant
    Filed: June 24, 1993
    Date of Patent: September 12, 1995
    Assignee: Olin Corporation
    Inventor: Lyle D. Galbraith
  • Lead frames with improved adhesion to a polymer
    Patent number: 5449951
    Abstract: There is provided a lead frame with enhanced adhesion to a polymer resin. The lead frame is coated with a thin layer of containing chromium, zinc or a mixture of chromium and zinc. A mixture of chromium and zinc with the zinc-to-chromium ratio in excess of about 4:1 is most preferred. The coated lead frames exhibit improved adhesion to a polymeric resin.
    Type: Grant
    Filed: July 1, 1994
    Date of Patent: September 12, 1995
    Assignee: Olin Corporation
    Inventors: Arvind Parthasarathi, Deepak Mahulikar
  • Mispour-misfill prevention apparatus and process
    Patent number: 5448499
    Abstract: A system and a process for monitoring the supplying of a working apparatus (e.g., spray etching tool employed in the semiconductor industry) via a flow control valve from a supply container to ensure the proper chemical is delivered to said working apparatus by (1) applying an optical bar code scanning label on the supply container and either the working container or the flow control valve or both and then (2) comparing the sensings of said bar code labels with a microprocessor controller that is programmed to open the flow control valve, if the comparings show a match and to send a visual error message and a signal to leave the flow control valve closed if the comparing shows a mismatch.
    Type: Grant
    Filed: August 24, 1992
    Date of Patent: September 5, 1995
    Assignee: Olin Corporation
    Inventor: Paul J. Palmer
  • Use of reduced volatility substituted hydrazine compounds in liquid-propellants
    Patent number: 5433802
    Abstract: The present invention relates to a liquid or gel propellant comprising an oxidizer and a fuel, said fuel preferably having a vapor pressure not exceeding 10 millimeters of mercury at 25.degree. C. and being selected from the group consisting of hydroxy-(lower alkyl)-hydrazine, dihydroxy-(lower alkyl)hydrazine, cyanoethylhydrazine, 1-methyl-1-cyanoethylhydrazine, 1,1-dimethyl-2-cyanoethylhydrazine, and combinations thereof. Also claimed is a method of making the propellant.
    Type: Grant
    Filed: August 1, 1994
    Date of Patent: July 18, 1995
    Assignee: Olin Corporation
    Inventors: Eugene F. Rothgery, Karl O. Knollmueller, Steven A. Manke, Frank W. Migliaro
  • Process for the preparation of 5-aminotetrazole
    Patent number: 5424449
    Abstract: The compound 5-aminotetrazole is prepared by a process which comprises (a) reacting a hydrazine salt of a mineral acid with cyanamide to form the corresponding aminoguanidine salt, (b) diazotizing the aminoguanidine salt to the corresponding guanylazide salt, and (c) cyclizing the guanylazide salt to 5-aminotetrazole.
    Type: Grant
    Filed: October 28, 1994
    Date of Patent: June 13, 1995
    Assignee: Olin Corporation
    Inventors: Eugene F. Rothgery, Karl O. Knollmueller