Patents by Inventor Daniel Lumpkin

Daniel Lumpkin 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).

  • Particle detection systems and methods for on-axis particle detection and/or differential detection
    Patent number: 11946852
    Abstract: Provided herein are optical systems and methods for detecting and characterizing particles. Systems and method are provided which increase the sensitivity of an optical particle counter and allow for detection of smaller particles while analyzing a larger fluid volume. The described systems and methods allow for sensitive and accurate detection and size characterization of nanoscale particles (e.g., less than 50 nm, optionally less than 20 nm, optionally less than 10 nm) for large volumes of analyzed fluids.
    Type: Grant
    Filed: December 16, 2021
    Date of Patent: April 2, 2024
    Assignee: PARTICLE MEASURING SYSTEMS, INC.
    Inventors: Daniel Rodier, James Lumpkin, Dwight Sehler, Brian Knollenberg
  • In-mold non-time dependent determination of injection molded part ejection readiness
    Patent number: 11072102
    Abstract: Non-time dependent measured variables are used to effectively determine an optimal ejection time of a part from a mold cavity. A system and/or approach may first measure at least one non-time dependent variable during an injection molding cycle. The part is ready to be ejected from the mold upon the measured variable reaching a threshold value indicative of, for example, a part temperature dropping below an activation temperature.
    Type: Grant
    Filed: April 3, 2018
    Date of Patent: July 27, 2021
    Assignee: IMFLUX, INC.
    Inventors: Nicholas Mulkern Unkovic, Gene Michael Altonen, Daniel Lumpkin, William Francis Lawless, III, H. Kenneth Hanson, III, Chow-Chi Huang
  • In-Mold Non-Time Dependent Determination of Injection Molded Part Ejection Readiness
    Publication number: 20180281257
    Abstract: Non-time dependent measured variables are used to effectively determine an optimal ejection time of a part from a mold cavity. A system and/or approach may first measure at least one non-time dependent variable during an injection molding cycle. The part is ready to be ejected from the mold upon the measured variable reaching a threshold value indicative of, for example, a part temperature dropping below an activation temperature.
    Type: Application
    Filed: April 3, 2018
    Publication date: October 4, 2018
    Inventors: Nicholas Mulkern Unkovic, Gene Michael Altonen, Daniel Lumpkin, William Francis Lawless, III, H. Kenneth Hanson, III, Chow-Chi Huang