Patents Assigned to Olin
  • Method of purifying aqueous solutions of metal hydroxides
    Patent number: 4333913
    Abstract: A process is disclosed for purifying aqueous solutions of metal hydroxides.An aqueous solution of a metal hydroxide, such as sodium hydroxide, containing a complex of a heavy metal contaminant, such as mercury, is heated.An oxidizing agent, such as hydrogen peroxide, is reacted with the solution to precipitate solid particles of an oxide of the heavy metal, for example, mercuric oxide, in a solution. The solid particles of mercuric oxide are separated from the solution by filtration.The purified solution comprised of water and sodium hydroxide and containing less than about 0.3 part per million mercury by weight is sold commercially. The solid particles of mercuric oxide are landfilled or otherwise utilized.
    Type: Grant
    Filed: August 18, 1980
    Date of Patent: June 8, 1982
    Assignee: Olin Corporation
    Inventors: Ronald L. Dotson, Edward P. Carr
  • Offset piston for powder actuated tools
    Patent number: 4333595
    Abstract: A powder-actuated tool is provided with a barrel assembly having two parallel, communicating bores and a piston comprised of joined, offset portions, with one of said portions being adapted to slide in one bore while another portion is sliding in the other bore, whereby it is possible to provide a relatively short tool, capable of setting long fasteners, with continuous centering, of the fasteners, during their displacement.
    Type: Grant
    Filed: April 9, 1980
    Date of Patent: June 8, 1982
    Assignee: Olin Corporation
    Inventors: Marc Combette, Jean Ollivier
  • Piston tool buffer assembly
    Patent number: 4332340
    Abstract: A buffer assembly for use in a piston-type powder-actuated tool, which buffer assembly provides for a longer useful life of the piston. The buffer assembly includes an elastomeric member which is disposed in the bore of the tool barrel, and which is fitted with a metallic cap. The tool barrel and metallic cap combine to control and constrain radial and longitudinal expansion of the elastomeric member, when the latter is impacted by the driven piston. In this manner, extrusion of the elastomeric member is prevented and, at the same time, the piston is prevented from contacting other hardened tool surfaces.
    Type: Grant
    Filed: May 15, 1980
    Date of Patent: June 1, 1982
    Assignee: Olin Corporation
    Inventor: Frederick J. Harris
  • Cells having gasket lubricating means
    Patent number: 4332661
    Abstract: In an electrolytic cell lubricous material is provided between at least one gasket and the adjacent surface of the membrane between adjacent electrode frames to permit the gasket to deform during assembly and operation of the cell when compressive force is applied to effect fluid-tight seals between the gaskets and the adjacent electrode frames without damaging the membrane.
    Type: Grant
    Filed: January 2, 1981
    Date of Patent: June 1, 1982
    Assignee: Olin Corporation
    Inventors: James M. Ford, John O. Adams
  • Process for clarifying algae-laden waste water stream
    Patent number: 4330407
    Abstract: Disclosed is a process for clarifying an algae-laden waste water stream wherein the waste water stream is deaerated and passed through a substantially light-free environment before coagulating aids are added to the water stream and the water stream is clarified in a coagulated solids settling step. The deaeration and light-free travel allow the algae to be more easily settled.
    Type: Grant
    Filed: August 29, 1980
    Date of Patent: May 18, 1982
    Assignee: Olin Corporation
    Inventors: David A. Shermer, Parsons P. Jim, Dale R. Laurance
  • Process and apparatus for making a metal alloy
    Patent number: 4330328
    Abstract: A process and apparatus for producing a copper metal or alloy wherein a first material is added to a molten metal, consisting essentially of copper preferably in a furnace. After the first material is added, the molten metal is passed through a filtration device to remove particulate matter from the molten metal and/or reduce the oxygen content of the molten metal. After filtration, a second material is added to the molten metal.
    Type: Grant
    Filed: October 24, 1980
    Date of Patent: May 18, 1982
    Assignee: Olin Corporation
    Inventors: Derek E. Tyler, Harvey P. Cheskis, Louis P. Stone, Michael J. Pryor
  • Composite material
    Patent number: 4330599
    Abstract: Novel and advantageous metal laminates particularly useful in making coins comprising a copper core and a cladding metallurgically bonded thereto of a copper base alloy containing from 2 to 3.5% aluminum, from 1 to 2.5% silicon and the balance essentially copper. Disclosure also teaches a method of preparing copper laminates by providing a copper core in strip form in the hard temper and a copper alloy cladding fully annealed in strip form, wherein the components are rolled together in a single pass with a reduction of from 50 to 75% to provide the metallurgically bonded laminate.
    Type: Grant
    Filed: June 9, 1980
    Date of Patent: May 18, 1982
    Assignee: Olin Corporation
    Inventors: Joseph Winter, William Brenneman, Julius C. Fister
  • Disposable bed filter process and apparatus
    Patent number: 4330327
    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: October 24, 1980
    Date of Patent: May 18, 1982
    Assignee: Olin Corporation
    Inventor: Michael J. Pryor
  • Cooperative rolling process and apparatus
    Patent number: 4329863
    Abstract: A rolling mill apparatus and process comprise a plurality of rolls defining a plurality of roll bites defining a gap spacing between adjacent rolls. A fixed gap spacing is employed for at least one roll bite. A floating gap spacing is provided for at least one other roll bite. It is thereby possible to control in a desired manner the amount of thickness reduction at a desired roll bite in a pass through the mill.
    Type: Grant
    Filed: July 9, 1980
    Date of Patent: May 18, 1982
    Assignee: Olin Corporation
    Inventors: Michael J. Pryor, Joseph Winter
  • Process for preparing alkoxysilane cluster compounds by reacting a trialkoxysilanol with an amidated alkoxysilane cluster compound
    Patent number: 4329486
    Abstract: Described is a process for producing alkoxysilane cluster compounds by reacting a trialkoxysilanol with an amidated alkoxysilane cluster compound; this reaction being based on the following equation: ##STR1## wherein R is hydrogen, an alkyl, an alkenyl, an aryl, or an aralkyl; each R' is independently selected from the same groups as R with the proviso that at least a majority of said R' radicals are sterically hindered alkyl groups having at least 3 carbon atoms; and R" and R"' are individually selected from hydrogen, lower alkyl groups having 1-4 carbon atoms, and phenyl.
    Type: Grant
    Filed: June 29, 1981
    Date of Patent: May 11, 1982
    Assignee: Olin Corporation
    Inventor: Karl O. Knollmueller
  • Process for preparing alkoxysilane cluster compounds by reacting a trialkoxysilanol with a triamidosilane
    Patent number: 4329485
    Abstract: Described is a process for producing alkoxysilane cluster compounds by reacting a trialkoxysilanol with a triamidosilane; this reaction being based on the following equation: ##STR1## wherein R is hydrogen, an alkyl, an alkenyl, an aryl, or an aralkyl; each R' is independently selected from the same groups as R with the proviso that at least a majority of said R' radicals are sterically hindered alkyl groups having at least 3 carbon atoms; and R" and R'" are individually selected from hydrogen, lower alkyl groups having 1-4 carbon atoms, and phenyl with the proviso that both R" and R'" may not be hydrogen.
    Type: Grant
    Filed: June 29, 1981
    Date of Patent: May 11, 1982
    Assignee: Olin Corporation
    Inventor: Karl O. Knollmueller
  • Selected poly(oxyalkylated) 1,3,4-thiadiazoles and their use as corrosion inhibitors
    Patent number: 4329475
    Abstract: Disclosed are selected poly(oxyalkylated) 1,3,4-thiadiazoles of the formula: ##STR1## wherein each R is individually selected from hydrogen and methyl; and the sum of y and z is from 2 to about 30. These compounds are shown to be effective corrosion inhibitors in corrosive liquids such as acid metal-treating baths.
    Type: Grant
    Filed: November 10, 1980
    Date of Patent: May 11, 1982
    Assignee: Olin Corporation
    Inventor: Eugene F. Rothgery
  • Process flow computer control system
    Patent number: 4328549
    Abstract: An improved method for automatically controlling the rate of mass flow in a system having a mass mover powered by a power supply which is attenuated by a control device for transferring mass through a conduit, wherein a signal proportional to said mass flow is transmitted to an automatic control unit, characterized by the improvement among others, whereby the improved automatic control unit is provided with a process control mode in which new operating conditions are entered into the program, and the automatic control unit determines the correct mode of control for the new process conditions.
    Type: Grant
    Filed: January 11, 1980
    Date of Patent: May 4, 1982
    Assignee: Olin Corporation
    Inventor: Cecil T. Avery
  • Process for removing radium from monocalcium phosphate solutions by centrifugation
    Patent number: 4328193
    Abstract: Disclosed is a method for treating substantially homogeneous monocalcium phosphate (MCP) solutions that contain undesirable amounts of radium which comprises centrifuging these MCP solutions sufficiently to separate at least a portion of the radium from the solution. Such treated MCP solutions may then be reacted with sulfuric acid to simultaneously produce a phosphoric acid solution and a calcium sulfate precipitate such as gypsum having low levels of radium content.
    Type: Grant
    Filed: February 27, 1980
    Date of Patent: May 4, 1982
    Assignees: Olin Corporation, United States Gypsum Company
    Inventor: Harold V. Larson
  • Flexible polyurethane foam prepared from a reaction mixture which _includes a polyether triol containing an effectively dispersed finely _divided solid particulate material
    Patent number: 4327194
    Abstract: A select polyether polyol is used in preparing flexible polyurethane foam having desirable physical properties. The select polyether polyol is an oxypropylated, oxyethylated triol containing an effectively dispersed finely divided solid particulate material. The resulting foam is of utility in various applications, such as cushioning.
    Type: Grant
    Filed: February 2, 1981
    Date of Patent: April 27, 1982
    Assignee: Olin Corporation
    Inventors: Kiran B. Chandalia, Henry G. Barnowski
  • Sodium amalgam monitor
    Patent number: 4326850
    Abstract: An apparatus and method are disclosed for automatically monitoring the sodium concentration of a sodium amalgam by means of a wet chemical analysis in which a mineral acid is reacted with a sample of the sodium amalgam to generate an amount of hydrogen gas proportional to the amount of sodium in the amalgam sampled. The amount of such hydrogen gas produced is detected and displayed in units of sodium concentration. A thermal conductivity detector is preferred as the means for determining the amount of hydrogen gas produced.
    Type: Grant
    Filed: April 28, 1980
    Date of Patent: April 27, 1982
    Assignee: Olin Corporation
    Inventors: Italo A. Capuano, Patricia A. Turley, Edward W. DuBord
  • System for cleaning metal strip
    Patent number: 4325746
    Abstract: The system comprises a plurality of on-line cleaning tanks, through which continuous metal strip is passed, and a plurality of storage tanks, each containing a different cleaning solution. Different combinations of cleaning solutions are transferred to the on-line tanks from the storage tanks by selecting a particular combination or sequence of cleaning solutions in accordance with the type or composition of metal or metal alloy comprising the strip and automatically feeding the cleaning solutions to the on-line tanks in accordance with the sequence selected. The on-line tanks and storage tanks are interconnected by a network of conduits, pumps and valves which are automatically conditioned by a control element to operate in response to the selection of a particular cleaning sequence. Upon completion of a cleaning operation, each of the solutions is returned to its corresponding storage tank.
    Type: Grant
    Filed: February 19, 1981
    Date of Patent: April 20, 1982
    Assignee: Olin Corporation
    Inventors: James M. Popplewell, Martin H. Dempsey
  • Method and apparatus for reforming an improved strip of material from a starter strip of material
    Patent number: 4325777
    Abstract: A process and apparatus for reforming an improved strip (12) of material from a starting strip (16) of material. An electromagnetic device (18) maintains a floating molten zone (20) of the material in the starting strip (16) of the material and also forms the floating zone into the improved strip (12). The apparatus is provided with a susceptor device (80) arranged adjacent to the starting strip and operatively associated with the electromagnetic device (18) for initially heating the starting strip to be sufficiently conductive so that the starting strip can be directly heated by the electromagnetic device. Further, a control device (67) provides relative movement between the susceptor device (80) and the electromagnetic device by positioning the susceptor device in and out of the field of the electromagnetic device.
    Type: Grant
    Filed: August 14, 1980
    Date of Patent: April 20, 1982
    Assignee: Olin Corporation
    Inventors: John C. Yarwood, Derek E. Tyler, Joseph Winter
  • Remotely connecting and disconnecting cells from circuit
    Patent number: 4324634
    Abstract: A process for electrically by-passing one of a series of electrolytic cells without interrupting current flow through the remaining cells is disclosed. The process includes inserting two conductors between the cells, remotely moving the conductors into pressurized contact with the cell preceding and the cell following the cell being disconnected and closing a switch to electrically connect the two conductors thereby by-passing the cell being disconnected.
    Type: Grant
    Filed: January 28, 1980
    Date of Patent: April 13, 1982
    Assignee: Olin Corporation
    Inventors: Morton S. Kircher, Steven J. Specht
  • Self-closing propellant charge package
    Patent number: 4322907
    Abstract: An improved, self-closing propellant charge package adapted for use with a gravity-operated loading device for a powder-actuated tool, comprises a tubular body having one end at least partially closed, the other end being open, and having a portion, adjacent to the open end, which is integrally formed with a plurality of deformable, charge-retaining nodes which are adapted for reformation between a first, undeformed condition, wherein passage of charges is prevented, and a second, deformed, condition admitting of ready passage of charges. The package is adapted for telescoping emplacement on a projecting tubular loading port insert on the loading device, whereby the nodes are displaced, allowing the charges to pass into the insert and, thence, into the loading device.
    Type: Grant
    Filed: March 3, 1980
    Date of Patent: April 6, 1982
    Assignee: Olin Corporation
    Inventor: John P. Rowe