Patents by Inventor Lorenzo Guadalupe Rodriquez

Lorenzo Guadalupe Rodriquez 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).

  • Solenoid valve
    Patent number: 6543744
    Abstract: A solenoid valve includes an outlet tube and a plunger stop. A plunger is slidably disposed within the solenoid valve between the outlet tube and the plunger stop. The plunger is movable between a closed position wherein the plunger engages the outlet tube to block fluid flow through an outlet passage formed in the outlet tube and an open position wherein the plunger is distanced from the outlet tube to permit fluid flow through the outlet passage. The solenoid valve also includes a coil that is energizable to bias the plunger between the closed position and the open position. The plunger stop is configured so that the magnitude of the force of attraction between the plunger and the plunger stop is linearly proportional to the magnitude of the current applied to the coil. Moreover, the magnitude of the force of attraction between the plunger and the plunger stop is independent of the position of the plunger.
    Type: Grant
    Filed: June 15, 2001
    Date of Patent: April 8, 2003
    Assignee: Delphi Technologies, Inc.
    Inventors: Conrado Carrillo, Lorenzo Guadalupe Rodriquez, Yingjie Lin, Jean-Francois Pelka, Amiyo K. Basu