Patents by Inventor Joël Mendes Pereira

Joël Mendes Pereira 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).

  • Publication number: 20230308032
    Abstract: A piezoelectric inertia actuator is disclosed herein, which includes an actuator body, a coupling body defining a receiver, a lock body positioned within the receiver, and a piezo body attached to the coupling body. At least one flexible frame configured to support an engaging body may extend from the piezo body. A spring blade configured to apply a preload force to the engaging body via a decoupling preload body may extend from the coupling body. A tension member may be positioned within the lock body and apply a preload force to the piezo body, thereby creating a net compressive stress therein. The piezoelectric inertia actuator may further include a piezo preload body configured to apply a reaction force to the piezo body in order to maintain the compressive stress therein. The preload applied to the piezo body may be substantially decoupled from the preload applied to the engaging body.
    Type: Application
    Filed: May 24, 2023
    Publication date: September 28, 2023
    Inventors: Eric DURAND, Joel MENDES PEREIRA
  • Patent number: 11711031
    Abstract: A piezoelectric inertia actuator is disclosed herein, which includes an actuator body, a coupling body defining a receiver, a lock body positioned within the receiver, and a piezo body attached to the coupling body. At least one flexible frame configured to support an engaging body may extend from the piezo body. A spring blade configured to apply a preload force to the engaging body via a decoupling preload body may extend from the coupling body. A tension member may be positioned within the lock body and apply a preload force to the piezo body, thereby creating a net compressive stress therein. The piezoelectric inertia actuator may further include a piezo preload body configured to apply a reaction force to the piezo body in order to maintain the compressive stress therein. The preload applied to the piezo body may be substantially decoupled from the preload applied to the engaging body.
    Type: Grant
    Filed: April 15, 2020
    Date of Patent: July 25, 2023
    Assignee: MICRO-CONTROLE—SPECTRA-PHYSICS
    Inventors: Eric Durand, Joel Mendes Pereira
  • Publication number: 20220200485
    Abstract: A piezoelectric inertia actuator is disclosed herein, which includes an actuator body, a coupling body defining a receiver, a lock body positioned within the receiver, and a piezo body attached to the coupling body. At least one flexible frame configured to support an engaging body may extend from the piezo body. A spring blade configured to apply a preload force to the engaging body via a decoupling preload body may extend from the coupling body. A tension member may be positioned within the lock body and apply a preload force to the piezo body, thereby creating a net compressive stress therein. The piezoelectric inertia actuator may further include a piezo preload body configured to apply a reaction force to the piezo body in order to maintain the compressive stress therein. The preload applied to the piezo body may be substantially decoupled from the preload applied to the engaging body.
    Type: Application
    Filed: April 15, 2020
    Publication date: June 23, 2022
    Inventors: Eric DURAND, Joel MENDES PEREIRA
  • Publication number: 20220076984
    Abstract: The present application discloses a multi-axis motion system and methods of use, using an air bearing configured to position a semiconductor wafer chuck support relative to an inspection device. The air bearing includes a vacuum clamping function operative to secure the wafer chuck support to a surface formed on the underside of a structure that houses the inspection device. In one embodiment, the system includes a first positioner operative to position a carriage assembly in a first direction, the carriage assembly including a second positioner and a third positioner operative to selectively and independently travel in a second direction orthogonal to the first direction. The chuck support is secured to the positioners by one or more pivoting decoupling systems configured to transmit actuation forces from the positioners in the first and second directions, allowing the chuck support to be decoupled from the positioners when the chuck support is vacuum clamped to the underside of the structure.
    Type: Application
    Filed: September 10, 2020
    Publication date: March 10, 2022
    Applicant: Newport Corporation
    Inventors: Eric Durand, Franck Duquenoy, Joël Mendes Pereira