Patents Represented by Attorney, Agent or Law Firm Gregory S. Rosenblatt
  • Polymer plug for electronic packages
    Patent number: 5477008
    Abstract: There are provided polymer plugs for sealing the vent hole of an adhesively sealed electronic package. The polymer vent hole plug is selected to be either an ultraviolet curable polymer or a thermosetting polymer resin. One effective vent hole plug is a cylindrical plug having a diameter under 1.4 millimeters formed from a UV-curable epoxy.
    Type: Grant
    Filed: March 19, 1993
    Date of Patent: December 19, 1995
    Assignee: Olin Corporation
    Inventors: Anthony M. Pasqualoni, Deepak Mahulikar, Francis S. Jewell, Paul R. Hoffman, George Brathwaite, Richard McNabb, German Ramirez
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • Apparatus for suppressing a fire
    Patent number: 5423384
    Abstract: An apparatus for suppressing a fire comprises a gas generator containing a propellant and a fire suppressant as a mixture of compacted powders. The average diameter of a fire suppressant particle is larger than the average diameter of a propellant particle and the larger fire suppressant particles form discrete cooling sites that do not dramatically reduce the propellant burn rate.
    Type: Grant
    Filed: May 25, 1994
    Date of Patent: June 13, 1995
    Assignee: Olin Corporation
    Inventors: Lyle D. Galbraith, Gary F. Holland, Donald R. Poole, Robert M. Mitchell
  • Lead-free priming mixture for percussion primer
    Patent number: 5417160
    Abstract: There is provided a lead-free primer mix having high sensitivity. The primer mix contains an initiating explosive, a sensitizer, a propellant, calcium silicide and an oxidizer. The ignition exhaust products are essentially free of toxic oxides such as lead oxide, barium oxide and antimony oxide.
    Type: Grant
    Filed: December 1, 1993
    Date of Patent: May 23, 1995
    Assignee: Olin Corporation
    Inventors: George C. Mei, James W. Pickett
  • Heat exchange tube with embossed enhancement
    Patent number: 5415225
    Abstract: There is provided heat exchange tube formed from a ductile metal strip which is formed into a generally circular configuration with the opposing longitudinal edges of the strip welded together. Both surfaces of the strip are enhanced. On one surface, the enhancement constitutes parallel rows of vertical fins separated by channels. Conduits which run along the channels and are located at the base of one side of the fins facilitate bending of the fins about the fin base to form a nucleate boiling surface. On the opposing surface of the tube, the enhancement constitutes parallel rows of protrusions separated by a distance effective to generate turbulence in a fluid passing along the second surface. In a preferred embodiment, the protrusions are in the form of truncated cones.
    Type: Grant
    Filed: December 15, 1993
    Date of Patent: May 16, 1995
    Assignee: Olin Corporation
    Inventors: Myron R. Randlett, Ralph L. Webb
  • Machinable copper alloys having reduced lead content
    Patent number: 5409552
    Abstract: Machinable alpha beta brass having a reduced lead concentration is claimed. The alloy contains bismuth to improve machinability. Either a portion of the zinc is replaced with aluminum, silicon or tin, or a portion of the copper is replaced with iron, nickel or manganese.
    Type: Grant
    Filed: November 22, 1993
    Date of Patent: April 25, 1995
    Assignee: Olin Corporation
    Inventors: David D. McDevitt, Jacob Crane, John F. Breedis, Ronald N. Caron, Frank N. Mandigo, Joseph Saleh
  • Anodized aluminum electronic package components
    Patent number: 5403975
    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 80 amps per square foot and then allowed to gradually decrease as a function of oxide growth.
    Type: Grant
    Filed: August 31, 1993
    Date of Patent: April 4, 1995
    Assignee: Olin Corporation
    Inventors: Anthony M. Pasqualoni, Deepak Mahulikar, Satish K. Jalota, Andrew J. Brock
  • Lead-free bullett
    Patent number: 5399187
    Abstract: A composite lead-free bullet is disclosed comprising a heavy constituents selected from the group of tungsten, tungsten carbide, carballoy, and ferro-tungsten and a second binder constituent consisting of either a metal alloy or a plastic blend.
    Type: Grant
    Filed: September 23, 1993
    Date of Patent: March 21, 1995
    Assignee: Olin Corporation
    Inventors: Brian Mravic, Deepak Mahulikar, Gerald N. Violette, Eugene Shapiro, Henry J. Halverson
  • Metal electronic package with reduced seal width
    Patent number: 5399805
    Abstract: There is provided an electronic package where the package components define a cavity. A semiconductor device and a portion of a leadframe occupy part of the cavity. Substantially the remainder of the cavity is filled with a compliant polymer, such as a silicone gel. Since the cavity is no longer susceptible to gross leak failure, the seal width of adhesives used to assemble the package may be reduced, thereby increasing the area available for mounting the semiconductor device.
    Type: Grant
    Filed: September 27, 1993
    Date of Patent: March 21, 1995
    Assignee: Olin Corporation
    Inventors: Derek E. Tyler, Deepak Mahulikar, Anthony M. Pasqualoni, Jeffrey S. Braden, Paul R. Hoffman
  • Spray cast copper composites
    Patent number: 5390722
    Abstract: There is disclosed methods for the manufacture of a metal matrix composite having a metal or metal alloy matrix and a uniform dispersion of a second phase. The second phase is either a refractory metal or a nonmetal. An element which reacts with both the matrix and the second phase is added to increase the loathing density of the second phase and to improve adhesion between the components of the composite. When the metal alloy matrix is copper or a copper based alloy, suitable reactive elements include zirconium, titanium, chromium and mixtures thereof.
    Type: Grant
    Filed: January 29, 1993
    Date of Patent: February 21, 1995
    Assignee: Olin Corporation
    Inventors: Sankaranarayanan Ashok, William G. Watson, Harvey P. Cheskis
  • Water treatment system
    Patent number: 5389254
    Abstract: A method system for treating water in which the incoming effluent water is pre-filtered, passed through a reverse osmosis unit, post filtered to remove taste and odor and then passed to a holding tank. The holding tank is provided with a source of ultraviolet light to provide disinfection in the holding tank to eliminate bacterial growth prior to consumption of the water therein.
    Type: Grant
    Filed: August 13, 1993
    Date of Patent: February 14, 1995
    Assignee: Olin Corporation
    Inventor: Lawrence C. Sherman
  • Method of manufacturing a heating exchange tube
    Patent number: 5388329
    Abstract: A method for the manufacture of an enhanced heat exchange tube, in which the internal surface area is increased by either minimizing the apex angle of internal fins or increasing the fin height. The fins are formed by annealing a metallic strip while inhibiting recrystallization grain growth, texturing metallic strip, deforming the textured metallic strip into a generally circular configuration and bonding opposing edges of the strip together to form a length of tube.
    Type: Grant
    Filed: July 16, 1993
    Date of Patent: February 14, 1995
    Assignee: Olin Corporation
    Inventors: Myron R. Randlett, Daniel J. Angeli, Ralph L. Webb