Patents by Inventor David A. Caple

David A. Caple 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).

  • Carbon-reinforced electrode and method of making same
    Patent number: 6096179
    Abstract: A carbon-reinforced electrode is disclosed. The electrode is formed from a high surface area absorptive material ("HSAAM electrode") made from resorcinol, formaldehyde, a carbon reinforcing agent, a catalyst, and reaction products thereof, and is in a carbonized form. This electrode removes ions from a liquid when an electric current is applied. The liquid may be passed through a thickness of the electrode, or may be passed by the surface of the electrode. A method of making the HSAAM electrodes is also disclosed. The HSAAM electrodes are formed from setting a polymerized mixture of resorcinol, formaldehyde and a carbon reinforcing agent supplied in the form of carbon fibers, carbon felt or cellulose under controlled temperature and time constraints, and subsequently firing the resulting product so as to carbonize the electrode.
    Type: Grant
    Filed: June 3, 1999
    Date of Patent: August 1, 2000
    Assignee: Southeastern Trading, LLP
    Inventors: James R. Fajt, David A. Caple, Brian B. Elson
  • Liquid deionization apparatus having independently powered carbon-reinforced electrode structures
    Patent number: 6090259
    Abstract: An apparatus for deionization of a liquid is disclosed. The apparatus has a number of deionization cells, each cell having two different types of electrodes. The first type of electrode is formed from a high surface area absorptive material ("HSAAM electrode") made from resorcinol, formaldehyde, a carbon reinforcing agent, a catalyst, and reaction products thereof, and is in a carbonized form. This electrode removes ions when an electric current is applied. The second type of electrode, which does not remove ions, is formed from a non-HSAAM material. Each deionization cell has a single HSAAM electrode bordered on either side by a non-HSAAM electrode, and adjacent deionization cells do not share any electrodes of either type. The non-HSAAM electrodes are formed from carbon cloth or carbon felt fixed to one side of a plexiglass sheet, and two such sheets are needed to form a cell.
    Type: Grant
    Filed: August 20, 1999
    Date of Patent: July 18, 2000
    Assignee: Southeastern Trading, LLP
    Inventors: James R. Fajt, David A. Caple, Brian B. Elson
  • Method of reducing an ion concentration in a liquid
    Patent number: 6045685
    Abstract: An apparatus for deionization of a liquid is disclosed. The apparatus has a number of deionization cells, each cell having two different types of electrodes. The first type of electrode is formed from a high surface area absorptive material ("HSAAM electrode") made from resorcinol, formaldehyde, a carbon reinforcing agent, a catalyst, and reaction products thereof, and is in a carbonized form. This electrode removes ions when an electric current is applied. The second type of electrode, which does not remove ions, is formed from a non-HSAAM material. Each deionization cell has a single HSAAM electrode bordered on either side by a non-HSAAM electrode, and adjacent deionization cells do not share any electrodes of either type. The non-HSAAM electrodes are formed from carbon cloth or carbon felt fixed to one side of a plexiglass sheet, and two such sheets are needed to form a cell.
    Type: Grant
    Filed: September 20, 1999
    Date of Patent: April 4, 2000
    Assignee: Sotheastern Trading, LLP
    Inventors: James R. Fajt, David A. Caple, Brian B. Elson
  • Method for making a carbon-reinforced electrode
    Patent number: 5977015
    Abstract: An apparatus for deionization of a liquid is disclosed. The apparatus has a number of deionization cells, each cell having two different types of electrodes. The first type of electrode is formed from a high surface area absorptive material ("HSAAM electrode") made from resorcinol, formaldehyde, a carbon reinforcing agent, a catalyst, and reaction products thereof, and is in a carbonized form. This electrode removes ions when an electric current is applied. The second type of electrode, which does not remove ions, is formed from a non-HSAAM material. Each deionization cell has a single HSAAM electrode bordered on either side by a non-HSAAM electrode, and adjacent deionization cells do not share any electrodes of either type. The non-HSAAM electrodes are formed from carbon cloth or carbon felt fixed to one side of a plexiglass sheet, and two such sheets are needed to form a cell.
    Type: Grant
    Filed: April 6, 1999
    Date of Patent: November 2, 1999
    Assignee: Southeastern Trading LLP
    Inventors: James R. Fajt, David A. Caple, Brian B. Elson
  • Deionization apparatus having non-sacrificial electrodes of different types
    Patent number: 5925230
    Abstract: An apparatus for deionization of a liquid is disclosed. The apparatus has a number of deionization cells, each cell having two different types of electrodes. The first type of electrode is formed from a high surface area absorptive material ("HSAAM electrode") made from resorcinol, formaldehyde, a carbon reinforcing agent, a catalyst, and reaction products thereof, and is in a carbonized form. This electrode removes ions when an electric current is applied. The second type of electrode, which does not remove ions, is formed from a non-HSAAM material. Each deionization cell has a single HSAAM electrode bordered on either side by a non-HSAAM electrode, and adjacent deionization cells do not share any electrodes of either type. The non-HSAAM electrodes are formed from carbon cloth or carbon felt fixed to one side of a plexiglass sheet, and two such sheets are needed to form a cell.
    Type: Grant
    Filed: October 6, 1997
    Date of Patent: July 20, 1999
    Assignee: Southeastern Trading, LLP
    Inventors: James R. Fajt, David A. Caple, Brian B. Elson