Patents by Inventor Eric R. Petersen

Eric R. Petersen 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).

  • Method of pretreating carbon black powder to improve cathode performance and lithium sulfuryl chloride cell including the pretreated carbon black powder
    Patent number: 4543305
    Abstract: Carbon black powder is pretreated with acetone or methanol prior to cathode abrication to improve the cathode operating voltage and increase the cathode life of lithium sulfuryl chloride electrochemical cells.
    Type: Grant
    Filed: March 25, 1985
    Date of Patent: September 24, 1985
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Michael Binder, Charles W. Walker, Jr., Eric R. Petersen, William L. Wade, Jr., Sol Gilman
  • Method of pretreating carbon black powder to improve cathode performance and lithium sulfuryl chloride cell including the pretreated carbon black powder
    Patent number: 4526881
    Abstract: Carbon black powder is pretreated with acetone or methanol prior to cathode abrication to improve the cathode operating voltage and increase the cathode life of lithium sulfuryl chloride electrochemical cells.
    Type: Grant
    Filed: October 24, 1983
    Date of Patent: July 2, 1985
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Michael Binder, Charles W. Walker, Jr., Eric R. Petersen, William L. Wade, Jr., Sol Gilman
  • Method of making a porous carbon cathode, a porous carbon cathode so made, and electrochemical cell including the porous carbon cathode
    Patent number: 4514478
    Abstract: A porous carbon cathode for use in an electrochemical cell is made by wetg the carbon black with a 1:1 to 1:3 mixture of isopropyl alcohol:water, adding a binding agent thereto, smearing the resulting stiff paste on a thin expanded metal screen and pressing and rolling to the desired thickness, drying the cathode sheet in a vacuum oven at about 100.degree. C. for one hour while a weight is placed above and below the cathode sheet which is sandwiched between two pieces of blotting paper, the total weight applied being sufficient for the cathode to retain structural integrity, removing the weight and blotting papers and inserting the cathode sheet in an elevated drying oven at about 280.degree. C. for about one hour, and cooling the cathode sheet between blotting paper, repressing and rolling. Cathodes prepared by this method appear structurally strong, maintain their physical integrity with a minimum of cracking and flaking, and do not crumble when cut.
    Type: Grant
    Filed: August 13, 1984
    Date of Patent: April 30, 1985
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Michael Binder, Eric R. Petersen, Charles W. Walker, Jr., William L. Wade, Jr., Sol Gilman