Patents by Inventor Sean C. DUNN

Sean C. DUNN 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).

  • Piezo actuator type valve
    Patent number: 10400906
    Abstract: The disclosed embodiments include a valve assembly (300) that includes a piezo stack (308); a piezo actuator (306) encompassing the piezo stack, the piezo actuator having flexural elements (304) that provide a stroke multiplier that amplifies movement of the piezo stack; a valve block (318) having an inlet flow path (320) and an outlet flow path (322); a diaphragm (314) seated atop the valve block, wherein an outer part of the diaphragm is rigid and an inner part of the diaphragm is moveable in a vertical axis; and a bi-lateral flexure (312), wherein a bottom part of the piezo actuator is mechanically attached to the diaphragm via the bi-lateral flexure.
    Type: Grant
    Filed: June 7, 2016
    Date of Patent: September 3, 2019
    Assignee: ILLINOIS TOOL WORKS INC.
    Inventors: Scott E. Shirey, Andrew C. Dymek, Sean C. Dunn, Joseph C. Dille
  • PIEZO ACTUATOR TYPE VALVE
    Publication number: 20180163886
    Abstract: The disclosed embodiments include a valve assembly (300) that includes a piezo stack (308); a piezo actuator (306) encompassing the piezo stack, the piezo actuator having flexural elements (304) that provide a stroke multiplier that amplifies movement of the piezo stack; a valve block (318) having an inlet flow path (320) and an outlet flow path (322); a diaphragm (314) seated atop the valve block, wherein an outer part of the diaphragm is rigid and an inner part of the diaphragm is moveable in a vertical axis; and a bi-lateral flexure (312), wherein a bottom part of the piezo actuator is mechanically attached to the diaphragm via the bi-lateral flexure.
    Type: Application
    Filed: June 7, 2016
    Publication date: June 14, 2018
    Inventors: Scott E. SHIREY, Andrew C. DYMEK, Sean C. DUNN, Joseph C. DILLE