Patents by Inventor Richard W. Ralston, Jr.

Richard W. Ralston, Jr. has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 5152915
    Abstract: A process for producing dichlorine monoxide which includes: feeding an aqueous solution of hypochlorous acid containing at least 20% by weight of HOCl to a reaction vessel; maintaining the temperature of the aqueous solution of hypochlorous acid in the range of from about -10.degree. to about +40.degree. C.; passing an inert gas through the aqueous solution of hypochlorous acid to produce a gaseous mixture comprising dichlorine monoxide, chlorine and inert gas; an contacting the gaseous mixture with dry ice to provide a solid phase of dry ice and dichlorine monoxide.
    Type: Grant
    Filed: September 3, 1991
    Date of Patent: October 6, 1992
    Assignee: Olin Corporation
    Inventors: Richard W. Ralston, Jr., Budd L. Duncan, Ronald L. Dotson
  • Patent number: 5131989
    Abstract: Ammonium perchlorate is produced a process which comprises:(a) oxidizing a solution of chloric acid substantially free of ionic impurities,(b) introducing gaseous ammonia or an ammonium hydroxide solution into the crystallizing zone to produce ammonium perchlorate crystals, wherein the aqueous solution of perchloric acid and/or the ammonium hydroxide solution is in droplet form.High purity ammonium perchlorate crystals can now be produced directly which are free of transition metals, sulfates and phosphates, as well as substantially free of other ionic impurities including alkali metals, chlorate and chloride.
    Type: Grant
    Filed: May 17, 1991
    Date of Patent: July 21, 1992
    Assignee: Olin Corporation
    Inventors: Ronald L. Dotson, Richard W. Ralston, Jr., Harry J. Loftis
  • Patent number: 4532018
    Abstract: Method and means for automatically controlling chlor-alkali cells are described. Control is exercised on the basis of a mass flow analysis, starting from a target caustic concentration for the catholyte output, to establish individual set points for optimum cell system operating conditions so as to achieve said target output value. Such control is accomplished by a central automatic control unit which is adapted to monitor the operation of the cell and its associated brine and caustic output subsystems and to institute appropriate corrective actions whenever a tolerance band around one or more of said set points is exceeded.The control unit is further adapted to provide daily and weekly operating summaries and to store said summaries for trends analyses to establish the scope and significance of any long-term degradative processes which might be occurring.
    Type: Grant
    Filed: September 6, 1983
    Date of Patent: July 30, 1985
    Assignee: Olin Corporation
    Inventors: David B. Wright, Richard W. Ralston, Jr., James M. Ford
  • Patent number: 4251336
    Abstract: An improved method and apparatus for adjusting the space between an adjustable anode and a cathode in an electrolytic cell wherein current measurements and voltage measurements are obtained for conductors to the anode sets and compared with predetermined standards for the same conductors and anode sets. Measurement of deviation from the predetermined standards are used to determine the direction of anode adjustment. A digital computer operably connected to motor drive means adapted to raise or lower anode sets upon appropriate electric signals from the computer is a preferred embodiment of this invention.
    Type: Grant
    Filed: October 22, 1979
    Date of Patent: February 17, 1981
    Assignee: Olin Corporation
    Inventor: Richard W. Ralston, Jr.
  • Patent number: 4174267
    Abstract: An improved method and apparatus for adjusting the space between an adjustable anode and a cathode in an electrolytic cell wherein current measurements and voltage measurements are obtained for conductors to the anode sets and compared with predetermined standards for the same conductors and anode sets. Measurement of deviation from the predetermined standards are used to determine the direction of anode adjustment. A digital computer operably connected to motor drive means adapted to raise or lower anode sets upon appropriate electric signals from the computer is a preferred embodiment of this invention.In a preferred embodiment, potential incipient short circuits are detected and avoided by the improvement which comprises:(a) obtaining the difference between two successive current signals for a selected conductor and doubling the difference to obtain a total current difference, .DELTA..sub.
    Type: Grant
    Filed: February 22, 1979
    Date of Patent: November 13, 1979
    Assignee: Olin Corporation
    Inventor: Richard W. Ralston, Jr.
  • Patent number: 4155829
    Abstract: An improved method and apparatus for adjusting the space between an adjustable anode and a cathode in an electrolytic cell wherein current measurements and voltage measurements are obtained for conductors to the anode sets and compared with predetermined standards for the same conductors and anode sets. Measurement of deviation from the predetermined standards are used to determine the direction of anode adjustment. A digital computer operably connected to motor drive means adapted to raise or lower anode sets upon appropriate electric signals from the computer is a preferred embodiment of this invention.
    Type: Grant
    Filed: June 27, 1978
    Date of Patent: May 22, 1979
    Assignee: Olin Corporation
    Inventor: Richard W. Ralston, Jr.
  • Patent number: 4082639
    Abstract: A method and apparatus for obtaining signals from the anode buses of a mercury cell to provide automatic protection against short circuits, visual readouts, and computer information. A multiplexer is associated with each cell which scans the signals from the various bus bars. The scanned signals from each bus bar are sequential with one another and are converted to proportional voltage and anode bus current signals, which are transmitted to a console for decoding and processing to provide a visual readout and to a computer for processing and anode adjustment. In addition, each cell has an overcurrent and short circuit protection circuit based upon anode bus current. The instantaneous anode bus current for a given bus of a cell is compared with an average anode bus current for that cell and the anodes raised when the current exceeds the average bus current by a certain percentage.
    Type: Grant
    Filed: September 22, 1976
    Date of Patent: April 4, 1978
    Assignee: Olin Corporation
    Inventors: Richard W. Ralston, Jr., George K. Ames
  • Patent number: 4004989
    Abstract: An improved method for automatic adjustment of anodes in an electrolytic cell is described which utilizes the measurement of the rate of change in current density for a given unit of distance when a minor fraction of the anodes are lowered toward the liquid cathode. When the change in rate of current density exceeds a predetermined limit, movement of the minor fraction of anodes is stopped, and another minor fraction of anodes is adjusted.After positioning of the anodes is completed, control of the space between the anode and cathode is effected wherein current measurements and voltage measurements are obtained and compared with predetermined standards. Measurements of deviation from the predetermined standards are used to determine the direction of anode adjustment. A digital computer operably connected to motor drive means adapted to raise or lower anode sets upon appropriate electric signals from the computer is a preferred embodiment of this invention.
    Type: Grant
    Filed: March 21, 1975
    Date of Patent: January 25, 1977
    Assignee: Olin Corporation
    Inventor: Richard W. Ralston, Jr.
  • Patent number: 3983025
    Abstract: An improved method and apparatus for adjusting the space between an adjustable anode and a cathode in an electrolytic cell wherein current measurements and voltage measurements are obtained and compared with predetermined standards. Measurement of deviation from the predetermined standards are used to determine the direction of anode adjustment. A digital computer operably connected to motor drive means adapted to raise or lower anode sets upon appropriate electric signals from the computer is a preferred embodiment of this invention.
    Type: Grant
    Filed: July 18, 1974
    Date of Patent: September 28, 1976
    Assignee: Olin Corporation
    Inventor: Richard W. Ralston, Jr.