Patents Represented by Attorney Paul Weinstein

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  • Control of liquid-solid interface in electromagnetic casting
    Patent number: 4415017
    Abstract: An electromagnetic casting system for casting materials comprising the apparatus and process for electromagnetically containing and forming molten material during a casting run into a desired shape. During the casting run, a liquid-solid interface defines molten material head and solid material portions of the casting. The electromagnetic containing and forming device includes an inductor applying a magnetic field to the molten material. The magnetic field defines a containment zone for the molten material. An alternating current is applied to the inductor to generate the magnetic field. The improvement comprises controlling the location of the liquid-solid interface in the containment zone. The location of the liquid-solid interface along the periphery of the casting is monitored.
    Type: Grant
    Filed: June 26, 1981
    Date of Patent: November 15, 1983
    Assignee: Olin Corporation
    Inventors: John C. Yarwood, Gary L. Ungarean, Derek E. Tyler
  • Duplex rolling process and apparatus
    Patent number: 4415377
    Abstract: A duplex rolling process and apparatus for working a metal or alloy subject to the formation of strain induced martensite. The metal or alloy is first worked at an elevated temperature wherein the formation of strain induced martensite is substantially suppressed or eliminated. The metal or alloy is then worked at a lower temperature wherein the formation of strain induced martensite is promoted whereby working is carried out more efficiently.
    Type: Grant
    Filed: June 28, 1982
    Date of Patent: November 15, 1983
    Assignee: Olin Corporation
    Inventors: Michael J. Pryor, William L. Brenneman
  • Disposable bed filter apparatus
    Patent number: 4413813
    Abstract: A disposable bed filter for removing particulate matter and/or reducing oxygen in a poured metal melt is located within a trough. The bed filter preferably comprises discrete layers of bed media located in a trough between entry and exit baffle plates. The layers of bed media include a layer of coarse media and a layer of fine media. The trough is preferably provided with a closeable lid to permit removal of the bed media and to compensate for buoyancy of the bed media if present. In its preferred use, the bed filter forms part of a process for making a metal alloy wherein the bed filter simultaneously reduces the oxygen content of the melt and filters particulate matter from the melt.
    Type: Grant
    Filed: January 25, 1982
    Date of Patent: November 8, 1983
    Assignee: Olin Corporation
    Inventor: Michael J. Pryor
  • Cooperative rolling mill apparatus and process
    Patent number: 4412439
    Abstract: This invention relates to a rolling mill apparatus and process which utilizes the creation of a differential friction force in at least the most downstream one of a plurality of roll bites for a variety of purposes. In a first embodiment, a differential friction force is created at the most downstream roll bite for reducing the maximum strip tension and forward strip tension thereby increasing the maximum attainable reduction in strip thickness per pass and reducing the size of the recoiler used for applying the forward tension. In a second embodiment, differential friction forces are created at the most upstream roll bite and the most downstream roll bite for increasing strip tension at all of the roll bites while decreasing the separating force required to obtain given strip reductions without increasing the maximum strip tension.
    Type: Grant
    Filed: May 4, 1981
    Date of Patent: November 1, 1983
    Assignee: Olin Corporation
    Inventor: William L. Brenneman
  • Cast copper alloys
    Patent number: 4412871
    Abstract: The disclosure teaches improved cast copper alloys exhibiting surprisingly good hot rollability and a method of processing copper base alloys to provide cast structures having good hot rollability, especially those containing silicon and tin. In accordance with the method of the invention, ingots are direct chill cast in a mold from liquid metal wherein the melt temperature entering the mold is 100.degree. to 350.degree. C. in excess of the liquidus temperature.
    Type: Grant
    Filed: February 16, 1982
    Date of Patent: November 1, 1983
    Assignee: Olin Corporation
    Inventors: Prakash D. Parikh, Louis P. Stone, Eugene Shapiro, Derek E. Tyler
  • Casing for an electrical component having improved strength and heat transfer characteristics
    Patent number: 4410927
    Abstract: A casing for an electrical component comprises a metal base member. A metal housing member is mounted on the base member to provide a hollow enclosed casing for receiving the electrical component. A metal lead frame is provided within the enclosed casing and is electrically connected to the electrical component. The lead frame has terminal leads projecting between the base member and the housing member external to the casing. The improvement comprises a device extending from the base member for strengthening the base member and providing additional heat transfer from the casing. Also, an adhesive seals and bonds the terminal leads to both the base member and to the housing member to form the enclosed casing.
    Type: Grant
    Filed: June 21, 1982
    Date of Patent: October 18, 1983
    Assignee: Olin Corporation
    Inventor: Sheldon H. Butt
  • Process for restructuring thin strip semi-conductor material
    Patent number: 4410392
    Abstract: A process for restructuring thin strip semiconductor material is disclosed. It comprises the steps of providing relative movement between the thin strip material and the heating station. The thin strip material is heated at the heating station to a desired temperature between the recrystallization temperature and the melting temperature. The strip is maintained at the desired temperature whereby preferred recrystallization and stress relief occurs within the material. In addition, the thin strip material may be elongated through elevating the temperature of the thin strip and/or increasing the longitudinal tension on the strip.
    Type: Grant
    Filed: March 18, 1981
    Date of Patent: October 18, 1983
    Assignee: Olin Corporation
    Inventor: Joseph Winter
  • Electrical connector material
    Patent number: 4409295
    Abstract: An electrical connector arrangement comprises a first element adapted to be in contact for substantial periods of time with a second element. The first element comprises a first metal substrate having an outer layer of a copper base alloy comprising from about 2 to about 12% aluminum, about 0.001 to about 3% silicon, and the balance essentially copper. The second element comprises a second metal substrate having a gold or gold base alloy contact surface.
    Type: Grant
    Filed: January 21, 1982
    Date of Patent: October 11, 1983
    Assignee: Olin Corporation
    Inventors: Edward F. Smith, III, F. Dennis Gyurina
  • Process and apparatus for improving cold rollability and/or strip annealability of metals and metal alloys
    Patent number: 4405386
    Abstract: Selective heating of edge and near-edge portions of a strip material is used to increase the ductility of the strip material at these portions and to improve the cold rollability and/or strip annealability of the strip material. The selective heating may be performed either by radiant heating or by induction heating.
    Type: Grant
    Filed: April 5, 1982
    Date of Patent: September 20, 1983
    Assignee: Olin Corporation
    Inventors: Brian Mravic, Eugene Shapiro
  • Multi-gauge strip
    Patent number: 4404264
    Abstract: An improved method and apparatus for the production of multi-gauge strip is disclosed wherein the multi-gauge strip comprises a first strip of metal having a first thickness and extending longitudinally for a given length. A second strip of metal has a second thickness, is narrower in width than the first strip, and coextends longitudinally with the first strip of metal. The first and second strips of metal are intimately bonded in direct metal-to-metal contact without the use of a welding or brazing material. The multi-gauge strip has a first portion extending the given length with a third thickness substantially equal to the sum of the first and second thicknesses and a second portion of substantially constant width extending the given length having a fourth thickness substantially equal to the first thickness.
    Type: Grant
    Filed: January 26, 1981
    Date of Patent: September 13, 1983
    Assignee: Olin Corporation
    Inventors: Robert N. Tatum, Robert W. Hofer, S. Paul Zarlingo
  • Zero clearance device for rolling mill apparatus
    Patent number: 4402207
    Abstract: A rolling mill apparatus for reducing the thickness of a continuous strip material comprises at least two rolls between which the strip passes and inflatable pads for substantially maintaining the vertical and lateral alignment of the rolls and for substantially preventing roll shifting and/or cross-over. The inflatable pads are disposed between roll support assemblies and their respective support structures to substantially eliminate clearances that may develop between them. The inflatable pads preferably comprise a composite metal or metal alloy panel having inflatable fluid passageways.
    Type: Grant
    Filed: July 9, 1981
    Date of Patent: September 6, 1983
    Assignee: Olin Corporation
    Inventor: Thomas E. Buder
  • Cast copper alloys
    Patent number: 4396444
    Abstract: The disclosure teaches improved cast copper alloys exhibiting surprisingly good hot rollability and a method of processing copper base alloys to provide cast structures having good hot rollability, especially those containing silicon and tin. In accordance with the method of the invention, ingots are direct chill cast in a mold from liquid metal wherein the melt temperature entering the mold is 100.degree. to 350.degree. C. in excess of the liquidus temperature.
    Type: Grant
    Filed: December 21, 1981
    Date of Patent: August 2, 1983
    Assignee: Olin Corporation
    Inventors: Prakash D. Parikh, Louis P. Stone, Eugene Shapiro, Derek E. Tyler
  • Process for treating copper-aluminum-silicon alloys to improve fatigue strength
    Patent number: 4395295
    Abstract: A process for improving the fatigue strength and fatigue life of a substantially single phase copper-aluminum-silicon alloy is described. The process comprises cold working the copper alloy from about 75% to about 98% and heating the alloy at a temperature of about 200.degree. C. to about 350.degree. C. for a time period of at least about 5 minutes.
    Type: Grant
    Filed: May 28, 1982
    Date of Patent: July 26, 1983
    Assignee: Olin Corporation
    Inventor: Eugene Shapiro
  • Electromagnetic casting method and apparatus
    Patent number: 4388962
    Abstract: A method and apparatus for electromagnetic continuous or semicontinuous casting of metals and alloys. A variable coolant application system is used to control the rate of heat extraction from the casting to properly position the solidification front at the surface of the casting without otherwise influencing the containment process through modification of the magnetic field.
    Type: Grant
    Filed: November 2, 1978
    Date of Patent: June 21, 1983
    Assignee: Olin Corporation
    Inventors: John C. Yarwood, Ik Y. Yun, Derek E. Tyler
  • Process and flotation box for inclusion removal
    Patent number: 4386958
    Abstract: A process and apparatus are disclosed for removing inclusions and inclusion clusters from a molten metal or alloy stream prior to casting. In the process, the molten metal is passed through a flotation box having a primary chamber and a secondary chamber located within the primary chamber. The primary chamber is provided with entry and exit portions, one on each side of the secondary chamber so that the stream of molten metal or alloy is directed to flow into the primary chamber, flowing beneath the secondary chamber and out the exit portion. Inclusions and inclusion clusters float to the surface of the molten metal or alloy in the secondary chamber prior to the exiting of the molten metal or alloy stream from the primary chamber through the exit portion for supply to a casting station.
    Type: Grant
    Filed: May 4, 1981
    Date of Patent: June 7, 1983
    Assignee: Olin Corporation
    Inventors: Derek E. Tyler, Ik Y. Yun, Patrick D. Renschen
  • Electromagnetic thin strip casting process
    Patent number: 4375234
    Abstract: A process and apparatus for casting a material into a desired thin strip shape. Molten material is formed into the thin strip shape by an electromagnetic containing and forming process. In a first portion the molten material is shaped into the desired thin strip shape and in a second portion upstream of and communicating with the first portion the molten material is electromagnetically contained in a sump. The sump at a top surface thereof has a substantially larger cross-sectional area as compared to a cross-sectional area of the thin strip shape.
    Type: Grant
    Filed: October 5, 1981
    Date of Patent: March 1, 1983
    Assignee: Olin Corporation
    Inventor: Michael J. Pryor
  • Apparatus and process for electromagnetically shaping a molten material within a narrow containment zone
    Patent number: 4373571
    Abstract: An apparatus and process is provided for electromagnetically forming a material into a desired thin strip shape. The apparatus and process includes a first portion containing a sump of said material in molten form. A second portion is located downstream of and communicates with the first portion. The second portion defines a containment zone of 5 mm or less for electromagnetically shaping the molten material into the thin strip shape whereby efficiency is improved through reduction of power consumption.
    Type: Grant
    Filed: April 24, 1981
    Date of Patent: February 15, 1983
    Assignee: Olin Corporation
    Inventors: John C. Yarwood, Gerhart K. Gaule, Gary L. Ungarean
  • Continuous lubrication casting molds
    Patent number: 4369832
    Abstract: A continuous lubrication casting mold for use in a process of continuously casting molten metals and alloys wherein a parting and/or lubricating agent reservoir is provided in the mold body. The agent is continuously applied over the inner surface of the mold after being introduced through passages within or through the mold section. The lubricant passages may be an intrinsic characteristic of the mold material or may be provided in the form of feed holes through the mold section. The ability to transmit lubricant through to the internal surface of the mold can be varied within the length of the casting mold to provide for variable lubricant transfer rates to different parts of the casting surface.
    Type: Grant
    Filed: April 1, 1981
    Date of Patent: January 25, 1983
    Assignee: Olin Corporation
    Inventors: Michael J. Pryor, Derek E. Tyler
  • Precision spot plating process and apparatus
    Patent number: 4367123
    Abstract: A process and apparatus for electroplating a spot of metal on a substrate and optionally a plurality of such spots in a desired arrangement. A column of electrolyte having a transverse cross-sectional shape corresponding about to the shape of the desired spot of metal to be plated is formed between an anode and the substrate which is connected as a cathode. The electrolyte is supplied by force of gravity with a desired hydrostatic head pressure. The substrate can be sequentially advanced to electrodeposit spots of metal at different points on the substrate.
    Type: Grant
    Filed: October 22, 1981
    Date of Patent: January 4, 1983
    Assignee: Olin Corporation
    Inventor: Alexander F. Beck
  • Continuous lubrication casting molds
    Patent number: 4363352
    Abstract: A continuous lubrication casting mold for use in a process of continuously casting molten metals and alloys wherein a parting and/or lubricating agent reservoir is provided in the mold body. The agent is continuously applied over the inner surface of the mold after being introduced through passages within or through the mold section. The lubricant passages may be an intrinsic characteristic of the mold material or may be provided in the form of feed holes through the mold section. The ability to transmit lubricant through to the internal surface of the mold can be varied within the length of the casting mold to provide for variable lubricant transfer rates to different parts of the casting surface.
    Type: Grant
    Filed: October 15, 1979
    Date of Patent: December 14, 1982
    Assignee: Olin Corporation
    Inventors: Michael J. Pryor, Derek E. Tyler