Patents by Inventor Ravinder Chutani

Ravinder Chutani 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).

  • DEVICE FOR CLEANING AN OPTICAL SURFACE
    Publication number: 20240045200
    Abstract: The invention relates to a device (5) comprising: —an optical surface (10); —a cleaning unit (15) for cleaning the optical surface, comprising at least one wave transducer (70) acoustically coupled to the optical surface, the wave transducer having a piezoelectric layer (80) and electrodes (85) of opposite polarity in contact with the piezoelectric layer, and being configured to generate at least one surface ultrasonic wave (WS) or a Lamb wave (WL) propagating in the optical surface; —the optical surface having at least one region of optical interest (100) not superposed on the wave transducer, the device comprising an apparatus (20) configured to sense and/or to emit radiation (R) through the region of optical interest (100).
    Type: Application
    Filed: December 13, 2021
    Publication date: February 8, 2024
    Applicant: Valeo Systèmes d'Essuyage
    Inventors: Michaël Baudoin, Ravinder Chutani, Frederic Bretagnol, Adrien Peret
  • DEVICE FOR CLEANING AN OPTICAL SURFACE
    Publication number: 20240042969
    Abstract: Disclosed is a device (5) for cleaning an optical surface, which device comprises: —a transparent optical surface (10); —a cleaning unit (15) for cleaning the optical surface, having a piezoelectric layer (20) and at least two wave transducers (45), each wave transducer having electrodes (40) of opposite polarity in contact with the piezoelectric layer and being acoustically coupled to the optical surface so as to generate at least one surface ultrasonic wave (Ws) or a Lamb wave (WL) propagating in the optical surface, the transducers being further arranged on the periphery of the optical surface.
    Type: Application
    Filed: December 13, 2021
    Publication date: February 8, 2024
    Applicant: Valeo Systèmes d'Essuyage
    Inventors: Michaël Baudoin, Ravinder Chutani, Frederic Bretagnol, Adrien Peret
  • Method for Melting a Body by Means of an Ultrasonic Wave
    Publication number: 20220371552
    Abstract: Method comprising: supplying electricity to at least one wave transducer (25) for synthesising an ultrasonic surface wave propagating in a medium (10) to a body (15) arranged on one side of the medium, at least one portion of the electrical supply energy being converted into heat by the transducer, the electrical energy supplied to the transducer being sufficient for the heat and the energy of the ultrasonic surface wave to cause: —the body to melt when the body is in the solid state, and/or—the body to be maintained in the liquid state when the temperature of the medium is below the solidification temperature of the body.
    Type: Application
    Filed: September 24, 2020
    Publication date: November 24, 2022
    Inventors: Adrien PERET, Frederic BRETAGNOL, Michaël BAUDOIN, Ravinder CHUTANI
  • Alkali-metal vapour cell, especially for an atomic clock, and manufacturing process
    Patent number: 9488962
    Abstract: The invention relates to an alkali-metal vapor cell, especially for an atomic clock, and to its manufacturing process.
    Type: Grant
    Filed: October 11, 2013
    Date of Patent: November 8, 2016
    Assignees: Centre National de la Recherche Scientifique—CNRS, Universite de Franche Comte
    Inventors: Nicolas Passilly, Christophe Gorecki, Ravinder Chutani, Rodolphe Boudot
  • Alkali-Metal Vapour Cell, Especially for an Atomic Clock, and Manufacturing Process
    Publication number: 20150277386
    Abstract: The invention relates to an alkali-metal vapour cell, especially for an atomic clock, and to its manufacturing process.
    Type: Application
    Filed: October 11, 2013
    Publication date: October 1, 2015
    Inventors: Nicolas Passilly, Christophe Gorecki, Ravinder Chutani, Rodolphe Boudot