Patents by Inventor David D. Loukusa

David D. Loukusa 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).

  • Mix manifold and valve seal assembly
    Patent number: 11691164
    Abstract: A mix manifold (16) includes a plurality of valves to control the flow of material therethrough. First and second valves (36a, 36b) are linked for simultaneous actuation. The first and second valves each include valve members (56a, 56b) disposed within and rotatable relative to seal bodies (58a, 58b). The valve members seal against the seal bodies and the seal bodies seal against the manifold. A solvent valve (36c) also includes a valve member (56c) in a seal body (58c). The first and second valves are configured to open only when the solvent valve is closed. The solvent valve is configured to open only when the first and second valves are closed. The solvent valve can rotate between a plurality of positions to control the flow of solvent to flowpaths downstream of the first and second valves.
    Type: Grant
    Filed: May 22, 2019
    Date of Patent: July 4, 2023
    Assignee: Graco Minnesota Inc.
    Inventors: David D. Loukusa, Dennis J. Van Keulen, Jeremy Peter Jurmu
  • MIX MANIFOLD AND VALVE SEAL ASSEMBLY
    Publication number: 20210138494
    Abstract: A mix manifold (16) includes a plurality of valves to control the flow of material therethrough. First and second valves (36a, 36b) are linked for simultaneous actuation. The first and second valves each include valve members (56a, 56b) disposed within and rotatable relative to seal bodies (58a, 58b). The valve members seal against the seal bodies and the seal bodies seal against the manifold. A solvent valve (36c) also includes a valve member (56c) in a seal body (58c). The first and second valves are configured to open only when the solvent valve is closed. The solvent valve is configured to open only when the first and second valves are closed. The solvent valve can rotate between a plurality of positions to control the flow of solvent to flowpaths downstream of the first and second valves.
    Type: Application
    Filed: May 22, 2019
    Publication date: May 13, 2021
    Inventors: David D. Loukusa, Dennis J. Van Keulen, Jeremy Peter Jurmu