Patents by Inventor Sonia ESPINOZA

Sonia ESPINOZA 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).

  • Fluid pump and outlet check valve assembly thereof
    Patent number: 11499559
    Abstract: A fluid pump includes a housing; an inlet passage; an outlet conduit; a pumping element within the housing; and a check valve assembly. The check valve assembly includes a valve stem within the outlet conduit such that a flow path is created radially between the outlet conduit and the valve stem, the valve stem moving along a check valve assembly axis between a closed position and an open position. The flow path includes a first restriction which increases velocity of fluid passing through the flow path; a first expansion, downstream of the first restriction, which decreases velocity of fluid passing through the flow path; a second restriction, downstream of the first expansion, which increases velocity of fluid passing through the flow path; and a second expansion, downstream of the second restriction, which decreases velocity of fluid passing through the flow path.
    Type: Grant
    Filed: October 30, 2020
    Date of Patent: November 15, 2022
    Assignee: DELPHI TECHNOLOGIES IP LIMITED
    Inventors: Francisco Romo, Sonia Espinoza
  • FLUID PUMP AND OUTLET CHECK VALVE ASSEMBLY THEREOF
    Publication number: 20220136511
    Abstract: A fluid pump includes a housing; an inlet passage; an outlet conduit; a pumping element within the housing; and a check valve assembly. The check valve assembly includes a valve stem within the outlet conduit such that a flow path is created radially between the outlet conduit and the valve stem, the valve stem moving along a check valve assembly axis between a closed position and an open position. The flow path includes a first restriction which increases velocity of fluid passing through the flow path; a first expansion, downstream of the first restriction, which decreases velocity of fluid passing through the flow path; a second restriction, downstream of the first expansion, which increases velocity of fluid passing through the flow path; and a second expansion, downstream of the second restriction, which decreases velocity of fluid passing through the flow path.
    Type: Application
    Filed: October 30, 2020
    Publication date: May 5, 2022
    Inventors: Francisco ROMO, Sonia ESPINOZA