Patents by Inventor Douglas Ritzenthaler

Douglas Ritzenthaler 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).

  • Apparatus for manipulating crystal morphology to achieve stable fluidization
    Patent number: 11718928
    Abstract: This disclosure provides an apparatus to manipulate the crystal morphology of a powder to improve the flow of a powder from a vessel and/or flowability of a powder in order to achieve stable fluidization of the powder within a vessel.
    Type: Grant
    Filed: April 7, 2022
    Date of Patent: August 8, 2023
    Assignee: American Electric Power Company, Inc.
    Inventor: Douglas Ritzenthaler
  • APPARATUS FOR MANIPULATING CRYSTAL MORPHOLOGY TO ACHIEVE STABLE FLUIDIZATION
    Publication number: 20230142047
    Abstract: This disclosure provides an apparatus to manipulate the crystal morphology of a powder to improve the flow of a powder from a vessel and/or flowability of a powder in order to achieve stable fluidization of the powder within a vessel.
    Type: Application
    Filed: April 7, 2022
    Publication date: May 11, 2023
    Applicant: American Electric Power Company, Inc.
    Inventor: Douglas Ritzenthaler
  • APPARATUS FOR MANIPULATING CRYSTAL MORPHOLOGY TO ACHIEVE STABLE FLUIDIZATION
    Publication number: 20210230771
    Abstract: This disclosure provides an apparatus to manipulate the crystal morphology of a powder to improve the flow of a powder from a vessel and/or flowability of a powder in order to achieve stable fluidization of the powder within a vessel.
    Type: Application
    Filed: February 11, 2021
    Publication date: July 29, 2021
    Applicant: American Electric Power Company, Inc.
    Inventor: Douglas Ritzenthaler
  • Method for manipulating crystal morphology to achieve stable fluidization
    Patent number: 10988860
    Abstract: This disclosure provides an apparatus and method for improving the flowability of a powder by manipulating its crystal morphology. For example, a method and apparatus for achieving stable fluidization of a powder contained in a vessel.
    Type: Grant
    Filed: May 24, 2019
    Date of Patent: April 27, 2021
    Assignee: American Electric Power Company, Inc.
    Inventor: Douglas Ritzenthaler
  • APPARATUS AND METHOD FOR MANIPULATING CRYSTAL MORPHOLOGY TO ACHIEVE STABLE FLUIDIZATION
    Publication number: 20190368072
    Abstract: This disclosure provides an apparatus and method for improving the flowability of a powder by manipulating its crystal morphology. For example, a method and apparatus for achieving stable fluidization of a powder contained in a vessel.
    Type: Application
    Filed: May 24, 2019
    Publication date: December 5, 2019
    Applicant: American Electric Power Company, Inc.
    Inventor: Douglas Ritzenthaler
  • System and method for treating a flue gas stream
    Publication number: 20050201914
    Abstract: The present invention is a system and method for treating a flue gas stream to remove strong acid compounds selected from the group consisting of hydrofluoric acid (HF), hydrochloric acid (HCl), sulfuric acid (H2SO4), and sulfur trioxide (SO3) by injecting a sodium sorbent selected from the group consisting of sodium sesquicarbonate, sodium carbonate-bicarbonate, trona ore, mechanically refined trona ore, and trona into the flue gas stream, calcining substantially all of the sodium sorbent in the presence of the flue gas stream to form a soda ash, reducing the concentration of the at least one strong acid compound in the flue gas stream by reacting the at least one strong acid compound with the soda ash to form a sodium based by-product; and changing the chemistry of the flue gas stream to reduce the overall average resistivity of the particulate matter.
    Type: Application
    Filed: March 7, 2005
    Publication date: September 15, 2005
    Applicant: American Electric Power Company, Inc.
    Inventor: Douglas Ritzenthaler