Patents by Inventor Claude Rousseau

Claude Rousseau 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).

  • Patent number: 10558223
    Abstract: There is provided an autonomous vehicle for pushing feed lying on a floor, comprising a frame; a skirt rotatably connected to the frame, wherein a bottom portion of the skirt continuously contacts the floor to push the feed. The vehicle comprises a sensor assembly for detecting a magnetic field emitted from a magnetic guiding element inserted in the floor and a control unit mounted for directing rotation of the skirt and for guiding the vehicle along a predetermined path formed by the magnetic guiding element. Also provided is an autonomous vehicle with a skirt drive mechanism mounted to the frame for driving rotation of the skirt, and an autonomous vehicle comprising a prism-shaped skirt rotatably connected to the frame. There is also provided methods for installing a magnetically guided autonomous vehicle and for pushing feed using an autonomous vehicle, as well as systems and kits comprising said vehicle.
    Type: Grant
    Filed: October 26, 2018
    Date of Patent: February 11, 2020
    Assignee: ROVIBEC INC.
    Inventors: Francis Leclair, Pascal Leclerc, Marc-Antoine Durand, Richard Fleurent, Marjolaine Marcotte, Yvon Therrien, Jean-Pierre Malleret, Kevin Rousseau, Victor Rousseau, Martin Rousseau, Claude Beauregard
  • Patent number: 9752610
    Abstract: The invention relates to a device for locking a nut (13) in a tightened position on a rotary shaft (12), said rotary shaft (12) being hollow at least at one end (14). The locking device comprises a plurality of outer notches (16) formed in a face of the nut (13), said outer notches (16) extending parallel to a longitudinal axis (X) of the nut (13), a plurality of inner notches (15) formed in the end (14) of the rotary shaft (12), said inner notches (15) extending parallel to a longitudinal axis (X) of the rotary shaft (12), and a ring (18) suitable for being installed inside said end (14) of the rotary shaft (12) and presenting at least one first radial finger (19) for being received both in one of the inner notches (15) and in one of the outer notches (16) with the nut (13) being in a tightened position and the two notches (15, 16) housing said first radial finger (19) being at least partially in alignment in a radial direction.
    Type: Grant
    Filed: April 15, 2015
    Date of Patent: September 5, 2017
    Assignee: SNECMA
    Inventor: Alain Jean-Claude Rousseau
  • Publication number: 20150292544
    Abstract: The invention relates to a device for locking a nut (13) in a tightened position on a rotary shaft (12), said rotary shaft (12) being hollow at least at one end (14). The locking device comprises a plurality of outer notches (16) formed in a face of the nut (13), said outer notches (16) extending parallel to a longitudinal axis (X) of the nut (13), a plurality of inner notches (15) formed in the end (14) of the rotary shaft (12), said inner notches (15) extending parallel to a longitudinal axis (X) of the rotary shaft (12), and a ring (18) suitable for being installed inside said end (14) of the rotary shaft (12) and presenting at least one first radial finger (19) for being received both in one of the inner notches (15) and in one of the outer notches (16) with the nut (13) being in a tightened position and the two notches (15, 16) housing said first radial finger (19) being at least partially in alignment in a radial direction.
    Type: Application
    Filed: April 15, 2015
    Publication date: October 15, 2015
    Applicant: SNECMA
    Inventor: Alain Jean-Claude ROUSSEAU
  • Patent number: 7780325
    Abstract: A luminous turning button for an electric circuit, including a handle mounted to pivot about an axis to actuate at least one electric switch unit and that is illuminated by a light source substantially disposed along the axis. The handle includes a cap forming a disk and a gripping tab that protrudes in a diametral plane. The cap is made of translucent or transparent material capable of allowing the light to travel to the outside, the gripping tab being hollow and covering an integrated mechanical base made of opaque material.
    Type: Grant
    Filed: December 16, 2004
    Date of Patent: August 24, 2010
    Assignee: Schneider Electric Industries SAS
    Inventors: Virginie Collomb, Claude Rousseau, Alain Tardivon, Patrice Thizon
  • Publication number: 20070147063
    Abstract: A luminous turning button for an electric circuit, comprising a handle (20) that is mounted so as to pivot about an axis (X) to actuate at least one electric switch unit (12) and is illuminated by a light source (S) substantially disposed along the axis (X), the handle (20) comprising a cap (22) forming a disk (22B) and a gripping tab (22A) that protrudes in a diametral plane, characterized in that the cap (21) is made of translucent or transparent. material capable of allowing the light to travel to the outside, the gripping tab (22A) being hollow and that it covers an integrated mechanical base (21) made of opaque and mechanically strong material.
    Type: Application
    Filed: December 16, 2004
    Publication date: June 28, 2007
    Applicant: Schneider Electric Industries SAS
    Inventors: Virginie Collomb, Claude Rousseau, Alain Tardivon, Patrice Thizon
  • Publication number: 20050025634
    Abstract: A gas pumping system of the invention enables gas to be pumped from a process chamber (1) in order to regulate its pressure as a function of process steps. The system comprises a primary pump (2), a secondary pump (8), an inert gas injection device (6), and a regulator valve (4). The primary and/or secondary pump (2 and/or 8) is controlled in speed in order to regulate variations of greater amplitude. The regulator valve (4) is controlled in opening in order to regulate variations that are small amplitude and fast. The inert gas injection (6) is controlled in flow rate in order to regulate medium amplitude variations. This provides great reaction stability and a wide range of possible variation for the conditions in the process chamber (1).
    Type: Application
    Filed: May 7, 2004
    Publication date: February 3, 2005
    Inventors: Roland Bernard, Jean-Pierre Desbiolles, Sebastien Munari, Claude Rousseau
  • Patent number: 6625359
    Abstract: The invention relates to a dispersion-shifted single-mode optical fiber having an effective area greater than or equal to 60 &mgr;m2. This fiber is characterized by the fact that it has a zero chromatic dispersion wavelength &lgr;0 that is greater than 1585 nm and chromatic dispersion at 1550 nm that is greater in absolute terms than 3 ps/nm.km. The invention is applicable to wavelength division multiplexed transmission systems, and makes it possible to limit non-linear effects, such as four-wave mixing, and to limit the use of dispersion-compensating fiber.
    Type: Grant
    Filed: June 15, 2000
    Date of Patent: September 23, 2003
    Assignee: Alcatel
    Inventors: Pascale Nouchi, Jean-Claude Rousseau, Louis-Anne de Montmorillon
  • Patent number: 6535676
    Abstract: The invention relates to a single-mode optical fiber that, for a wavelength of 1550 nm, has an effective area greater than or equal to 60 &mgr;m2, chromatic dispersion lying in the range 3 ps/(nm.km) to 14 ps/(nm.km), a chromatic dispersion gradient in the range 0 ps/(nm2.km) to 0.1 ps/(nm2.km), and a ratio between the effective area and the chromatic dispersion gradient that is greater than or equal to 1000 &mgr;m2.nm2.km/ps, as well as a zero chromatic dispersion wavelength shorter than 1480 nm. The fiber thus has both a large effective area and a shallow chromatic dispersion gradient, and it is thus well suited to wavelength division multiplexed (WDM) transmission. The invention also relates to a WDM optical fiber transmission system that uses such a fiber as the line fiber.
    Type: Grant
    Filed: June 28, 2000
    Date of Patent: March 18, 2003
    Assignee: Alcatel
    Inventors: Louis-Anne de Montmorillon, Pascale Nouchi, Jean-Claude Rousseau, Raphaelle Sauvageon, Jean-François Chariot, Alain Bertaina
  • Patent number: 6535675
    Abstract: The invention relates to a dispersion shifted monomode optical fiber which, in the wavelength range 1400 nm to 1650 nm, presents both a chromatic dispersion maximum and a chromatic dispersion slope of absolute value less than 0.05 ps/nm2·km. Advantageously, the maximum in the wavelength wave 1400 nm to 1650 nm is a single maximum. The fiber also presents dispersion having a slope of absolute value less than 0.03 ps/nm2·km in the wavelength range 1530 nm to 1580 nm. The fiber of the invention is particularly suitable for wavelength division multiplexed transmission systems.
    Type: Grant
    Filed: December 23, 1999
    Date of Patent: March 18, 2003
    Assignee: Alcatel
    Inventors: Jean-Claude Rousseau, Marianne Paillot
  • Patent number: 6493494
    Abstract: The invention concerns a monomode optical fiber having at a wavelength of 1550 nm a dispersion slope from −0.8 ps/nm2.km to −0.5 ps/nm2.km and a chromatic dispersion from −130 ps/nm.km to −90 ps/nm.km, the fiber having a cladding and a core whose index profile features a central part having an index higher than that of the cladding, a ring having an index higher than that of the cladding and lower than that of the central part, and a trench between the central part and the ring having an index lower than that of the cladding, and the use of a fiber of this kind to compensate dispersion. The fiber of the invention finds applications in high bit rate transmission systems in particular. The invention also concerns a wavelength division multiplex optical fiber transmission system comprising at least one section of fiber in accordance with the invention.
    Type: Grant
    Filed: November 22, 1999
    Date of Patent: December 10, 2002
    Assignee: Alcatel
    Inventors: Jean-Claude Rousseau, Marianne Paillot
  • Patent number: 6459839
    Abstract: A monomode dispersion shifted optical fibre having an effective core area greater than 100 &mgr;m2, characterized in that it has a chromatic dispersion cancellation wavelength &lgr;0 from 1 400 nm to 1 500 nm and low curvature losses.
    Type: Grant
    Filed: December 13, 2000
    Date of Patent: October 1, 2002
    Assignee: Alcatel
    Inventors: Raphaelle Sauvageon, Jean-Claude Rousseau, Jean-François Chariot, Pascale Nouchi, Louis-Anne de Montmorillon
  • Patent number: 6453101
    Abstract: The invention relates to a dispersion-shifted optical fiber comprising a core and cladding, with an index profile of shape consisting of a rectangular central portion surrounded by an annular portion of index lower than the index of the cladding, and then by the cladding, with a zero chromatic dispersion at a wavelength value &lgr;0 lying in the range 1380 nm to 1450 nm, and with chromatic dispersion at 1550 nm lying in the range 8 ps/nm·km to 12 ps/nm·km. The invention also relates to the use of such an optical fiber in a wavelength division multiplexed system.
    Type: Grant
    Filed: June 2, 2000
    Date of Patent: September 17, 2002
    Assignee: Alcatel
    Inventors: Jean-Claude Rousseau, Marianne Paillot
  • Patent number: 6424776
    Abstract: The invention relates to a dispersion-shifted single-mode optical fiber having an effective area greater than or equal to 60 &mgr;m2. This fiber is characterized by the fact that it has a zero chromatic dispersion wavelength &lgr;0 lying in the range 1400 nm to 1480 nm, and bending losses of less than 0.05 dB at 1550 nm for a winding of 100 turns of the fiber around a radius of 30 mm. The invention is applicable to wavelength division multiplexed transmission systems, and makes it possible to limit non-linear effects, such as four-wave mixing, and to limit the use of dispersion-compensating fiber.
    Type: Grant
    Filed: May 16, 2000
    Date of Patent: July 23, 2002
    Assignee: Alcatel
    Inventors: Pascale Nouchi, Jean-Claude Rousseau, Louis-Anne de Montmorillon
  • Patent number: 6424775
    Abstract: The invention relates to a dispersion-shifted single-mode optical fiber having: cladding of given refractive index (ns); and a fiber core having an index profile that is Gaussian with a pedestal, i.e. a “dual shape core” index profile; said fiber being characterized in that the index profile of the fiber core has an outer ring of index (n3) greater than the index (ns) of the cladding. The invention provides better control over the wavelength at which chromatic dispersion is zero, while conserving the other transmission characteristics of known fibers, such as mode diameter and attenuation.
    Type: Grant
    Filed: April 4, 2000
    Date of Patent: July 23, 2002
    Assignee: Alcatel
    Inventors: Marianne Paillot, Jean-Claude Rousseau
  • Patent number: 6419455
    Abstract: The invention relates to a system for regulating the pressure in an enclosure (1) that is to contain processed gas for manufacturing semiconductor components or micro- or nano-technology devices, the enclosure being connected by pipework (2) to a pump unit (3) comprising a dry mechanical primary pump (4) and at least one secondary pump (5). According to the invention, the system further comprises a speed controller (6) controlling simultaneously the speeds of rotation of the dry mechanical primary pump (4) and of said at least one secondary pump (5).
    Type: Grant
    Filed: November 21, 2000
    Date of Patent: July 16, 2002
    Assignee: Alcatel
    Inventors: Claude Rousseau, Patrick Pilotti, Philippe Maquin
  • Publication number: 20020063951
    Abstract: The invention relates to an optical fiber amplifier (OFA) having a controllable heating system for adjusting and stabilizing the temperature of a fiber, wherein the heating system comprises a heat-generating fiber coating (TC) that has an electrical connection for applying a heating voltage or injecting a heating current (I1, I2) for the purpose of heat generation, wherein the heat-generating fiber coating (TC) surrounds at least a part of the fiber (OF), and also a method therefor.
    Type: Application
    Filed: November 27, 2001
    Publication date: May 30, 2002
    Applicant: ALCATEL
    Inventors: Oscar D'Almeida, Benoit Faure, Jean-Claude Rousseau, Laurent Gasca, Dominique Bayart
  • Patent number: 6396987
    Abstract: The invention provides a monomode optical fiber having, at a wavelength of 1550 nm: an effective section area greater than or equal to 60 &mgr;m2; chromatic dispersion close to 8 ps/(nm.km); a chromatic dispersion slope of absolute value less than 0.07 ps/(nm2.km). In the range of wavelengths used in a WDM transmission system, typically 1530 nm to 1620 nm, the fiber has chromatic dispersions greater than 7 ps/(nm.km), thereby making it possible to limit non-linear effects. The invention also provides a WDM optical fiber transmission system using such a fiber as a line fiber. The small slope of its chromatic dispersion is an advantage in such a system.
    Type: Grant
    Filed: August 11, 1999
    Date of Patent: May 28, 2002
    Assignee: Alcatel
    Inventors: Louis-Anne de Montmorillon, Pascale Nouchi, Jean-Claude Rousseau, Raphaelle Sauvageon, Jean-François Chariot, Alain Bertaina
  • Patent number: 6385379
    Abstract: A stepped index optical fiber is disclosed having a chromatic dispersion cancellation wavelength less than 1 280 nm or even 1 250 nm. The fiber can be used for wavelength-division multiplex transmission not only in the window around 1 550 nm but also in the window around 1 300 nm. The chromatic dispersion in the second window enables transmission without excessively penalizing non-linear effects. A fiberoptic transmission system which uses the above fiber as line fiber is also disclosed.
    Type: Grant
    Filed: February 17, 2000
    Date of Patent: May 7, 2002
    Assignee: Alcatel
    Inventors: Jean-Claude Rousseau, Michel Hertz, Marianne Paillot, Raphaelle Sauvageon, Jean-Francois Chariot
  • Patent number: 6363196
    Abstract: The invention relates to a dispersion-shifted single-mode fiber having cladding of given refractive index (ns) and a fiber core having an index profile that is in the shape of a trapezium, a triangle, or a rectangle, together with a first ring, the index profile of the fiber core having an outer, second ring of index (n3) greater than the index of said cladding (ns), said fiber being characterized in that the index (n3) of said second ring is greater than or equal to the index (n2) of said first ring. The invention provides better control over the wavelength at which chromatic dispersion is zero, while conserving the other transmission characteristics of known fibers, such as mode diameter and attenuation.
    Type: Grant
    Filed: April 4, 2000
    Date of Patent: March 26, 2002
    Assignee: Alcatel
    Inventors: Jean-Claude Rousseau, Marianne Paillot
  • Publication number: 20010036348
    Abstract: The invention proposes to fabricate an optical fiber by drawing a preform including several layers, at least one of which has a different viscosity to the other layers at the drawing temperature. The drawing tension is varied during drawing to obtain a fiber having a constant diameter and a varying profile. The chromatic dispersion of the fiber can therefore vary along the fiber. The invention applies to the fabrication of dispersion managed fibers (DMF).
    Type: Application
    Filed: March 15, 2001
    Publication date: November 1, 2001
    Inventors: Jean-Claude Rousseau, Jean-Francois Chariot