Patents by Inventor David Mechin

David Mechin 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: 20240075701
    Abstract: The facility comprises a tire-building station that is configured to form an uncured tire on a core. A curing station is configured to cure the assembly formed by the core and the uncured tire so as to obtain a cured annular tire. An extraction station is configured to separate, after the curing operation, the cured tire from the core. The curing station has a first, heating, thermal source which presses against the exchange face of the core for the curing operation and is then dissociated from the core and remains in the curing station in order to leave the exchange face free again when the core and the cured tire are transferred to the extraction station so that a second, refrigerating, thermal source of the extraction station takes the place of the first thermal source in contact with the exchange face of the core so as to cool the core.
    Type: Application
    Filed: October 21, 2021
    Publication date: March 7, 2024
    Applicant: Compagnie Generale Des Etablissements Michelin
    Inventors: David BOUCHEREAU, Jean MECHIN, Francois ROUYET, Jean-Claude DELORME, Stephane BARJON
  • Patent number: 8494014
    Abstract: A laser apparatus for producing mode locked pulses includes a closed optical system adapted to connect to a fiber grain medium to form a laser cavity. The fiber gain medium is adapted to receive pulses characterized by a first state and to output pulses characterized by a second state. The closed optical system is adapted to receive the pulses in the second state and output pulses in a state similar to the first state.
    Type: Grant
    Filed: April 5, 2012
    Date of Patent: July 23, 2013
    Assignee: Auckland Uniservices Limited
    Inventors: Claude Aguergaray, Vladimir Kruglov, Neil Broderick, John Harvey, David Mechin
  • Publication number: 20120275474
    Abstract: A laser apparatus for producing mode locked pulses includes a closed optical system adapted to connect to a fibre grain medium to form a laser cavity. The fibre gain medium is adapted to receive pulses characterized by a first state and to output pulses characterized by a second state. The closed optical system is adapted to receive the pulses in the second state and output pulses in a state similar to the first state.
    Type: Application
    Filed: April 5, 2012
    Publication date: November 1, 2012
    Inventors: Claude Aguergaray, Vladimir Kruglov, Neil Broderick, John Harvey, David Méchin
  • Patent number: 6868208
    Abstract: The invention provides a method of photoinducing a Bragg grating in an optical fiber (300) or a waveguide, in which a selected zone of the fiber (300) or waveguide is subjected to a step of being exposed with a source beam (120) using a mirror (200) in such a manner as to fold a portion (122) of the source beam (120) as reflected by the mirror (200) onto a portion (224) of the source beam that is not reflected by the mirror, thereby obtaining a diffraction grating in the fiber (300) or waveguide, the method being characterized in that an additional exposure step is performed on said portion of the fiber (300) or waveguide, and in that relative displacement is imparted between the two exposure steps to elements selected from the beam (120), the fiber (300) or waveguide, and the mirror (200) in such a manner as to cause a same portion of the beam (120) used for photoinduction in both exposure steps to be reflected by the mirror (200) in one of the steps and not reflected by the mirror (200) in the other step.
    Type: Grant
    Filed: August 29, 2001
    Date of Patent: March 15, 2005
    Assignee: France Telecom
    Inventors: Philippe Grosso, David Mechin
  • Publication number: 20040096156
    Abstract: The invention provides a method of photoinducing a Bragg grating in an optical fiber (300) or a waveguide, in which a selected zone of the fiber (300) or waveguide is subjected to a step of being exposed with a source beam (120) using a mirror (200) in such a manner as to fold a portion (122) of the source beam (120) as reflected by the mirror (200) onto a portion (224) of the source beam that is not reflected by the mirror, thereby obtaining a diffraction grating in the fiber (300) or waveguide, the method being characterized in that an additional exposure step is performed on said portion of the fiber (300) or waveguide, and in that relative displacement is imparted between the two exposure steps to elements selected from the beam (120), the fiber (300) or waveguide, and the mirror (200) in such a manner as to cause a same portion of the beam (120) used for photoinduction in both exposure steps to be reflected by the mirror (200) in one of the steps and not reflected by the mirror (200) in the other step.
    Type: Application
    Filed: October 21, 2003
    Publication date: May 20, 2004
    Inventors: Philippe Grosso, David Mechin
  • Patent number: 6574395
    Abstract: The invention relates to an exposure method for producing a Bragg grating on a photosensitive guide (120) or optical fiber (120), in which method the guide (the fiber) (120) is scanned by a light beam (300) and means (100, 220, 230) are provided for modulating the exposure time along the guide (the fiber) by varying the speed at which the beam (300) moves along the guide (the fiber) (120) so that it is located opposite each location of the guide (the fiber) (120) for a time period that varies with the location, the method including the step of disposing in front of the guide (the fiber) (110) a system (140) adapted to create interference fringes on the guide (the fiber) (120) and to scan the beam (300) over the interference system (140) at a speed that is modulated along the system (140), and furthermore the step of having the beam scan the guide (the fiber) (120) at a modulated speed without the interference system (140) on the path of the beam (300), the scanning with the interference system (140) being eff
    Type: Grant
    Filed: July 21, 2000
    Date of Patent: June 3, 2003
    Assignee: SA Highwave Optical Technologies
    Inventors: David Mechin, Michel Nolf, Philippe Grosso