Patents by Inventor Pierre Milhau

Pierre Milhau 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: 12134528
    Abstract: A control device for controlling a pneumatic component includes a compressed air supply circuit for connecting to an inlet of the pneumatic component. The circuit includes a normally closed monostable valve having an inlet for connecting to a compressed air source and an outlet for connecting to the pneumatic component, and a bistable directional valve having both a first port for connecting to the compressed air source and also a second port connected to a first port of a normally passing monostable directional valve, the monostable directional valve having a second port connected to a pneumatic control port of the monostable valve.
    Type: Grant
    Filed: October 15, 2019
    Date of Patent: November 5, 2024
    Assignee: COVAL
    Inventors: Emmanuel Buffat, Michel Cecchin, Pierre Milhau
  • Patent number: 11680586
    Abstract: A Venturi type ejector having a feed duct for feeding fluid under pressure with the duct extending along a central axis. A first expansion chamber is connected to the feed duct; a first mixing chamber is connected to the expansion chamber; a first suction chamber is connected to the mixing chamber; and an exhaust chamber is connected to the first mixing chamber. The ejector where the fluid under pressure penetrates into the first expansion chamber along a plurality of directions extends in a plane that is substantially orthogonal to the central axis. A vacuum generator includes such an ejector.
    Type: Grant
    Filed: January 11, 2019
    Date of Patent: June 20, 2023
    Assignees: COVAL, INSTITUT NATIONAL DES SCIENCES APPLIQUEES DE TOULOUSE
    Inventors: Lucien Baldas, Stéphane Orieux, Loïc Joguet, Michel Cecchin, Pierre Milhau
  • Publication number: 20220339799
    Abstract: The invention relates to a fluid flow device comprising a plurality of fluid flow functional modules each fastened on a respective individual base comprising: two parallel lateral faces via which the bases are adapted to be placed against one another in such a manner that when the bases are placed against one another, two of the bases each have one lateral face that is free; a primary fluid transport channel passing through the base to open out in its two lateral faces in identical positions; and a front face along which the module extends so as to couple an inlet channel of said module with a secondary channel extending in the base from the front face and opening out in the primary channel. According to the invention, the device includes fastener means for fastening the bases to one another and leaktight coupling means for coupling the end of the primary channel opening out in one of the lateral faces to a source of fluid under pressure for feeding the modules.
    Type: Application
    Filed: August 26, 2020
    Publication date: October 27, 2022
    Inventors: Emmanuel BUFFAT, Loïc JOGUET, Michel CECCHIN, Pierre MILHAU
  • Patent number: 11400604
    Abstract: A vacuum gripper device including at least one suction cup including a fastener body from which there extends an elastically deformable skirt having a free annular edge for coming into contact with an object to be grasped. The suction cup includes at least one electrically conductive track secured at least to the skirt. The conductive track is made of a material that is electrically conductive and elastically deformable so as to deform together with the skirt. The device includes an electronic processor circuit that is connected electrically to two connection pads belonging to the conductive track and that is arranged to monitor an electrical property of the conductive track, which electrical property varies with the deformation of the conductive track, and to compare that property with reference data so as to anticipate a failure of the suction cup.
    Type: Grant
    Filed: November 19, 2018
    Date of Patent: August 2, 2022
    Assignee: COVAL
    Inventors: Pierre Milhau, Michel Cecchin
  • Patent number: 11331813
    Abstract: A vacuum chamber for a gripper including at least one fastener plate and at least one pneumatic accessory fastened in a perforation in the fastener plate. The pneumatic accessory is held in the perforation by an elastically deformable tubular interface including an external groove in which the periphery of the perforation is received so as to provide sealing between the plate and the interface, the interface defining a channel extending between a first end of the interface extending inside the chamber and a second end extending outside the chamber, at least a portion of the pneumatic accessory being inserted in the channel of the interface.
    Type: Grant
    Filed: July 30, 2018
    Date of Patent: May 17, 2022
    Assignee: COVAL
    Inventors: Julien Billon, Pierre Milhau, Michel Cecchin
  • Publication number: 20210371214
    Abstract: The invention relates to a control device for controlling a pneumatic component, the device including a compressed air supply circuit for connecting to an inlet of the pneumatic component.
    Type: Application
    Filed: October 15, 2019
    Publication date: December 2, 2021
    Inventors: Emmanuel BUFFAT, Michel CECCHIN, Pierre MILHAU
  • Publication number: 20200370569
    Abstract: A Venturi type ejector having a feed duct for feeding fluid under pressure with the duct extending along a central axis. A first expansion chamber is connected to the feed duct; a first mixing chamber is connected to the expansion chamber; a first suction chamber is connected to the mixing chamber; and an exhaust chamber is connected to the first mixing chamber. The ejector where the fluid under pressure penetrates into the first expansion chamber along a plurality of directions extends in a plane that is substantially orthogonal to the central axis. A vacuum generator includes such an ejector.
    Type: Application
    Filed: January 11, 2019
    Publication date: November 26, 2020
    Inventors: Lucien BALDAS, Stéphane ORIEUX, Loïc JOGUET, Pierre MILHAU
  • Publication number: 20200361098
    Abstract: A vacuum gripper device including at least one suction cup including a fastener body from which there extends an elastically deformable skirt having a free annular edge for coming into contact with an object to be grasped. The suction cup includes at least one electrically conductive track secured at least to the skirt. The conductive track is made of a material that is electrically conductive and elastically deformable so as to deform together with the skirt. The device includes an electronic processor circuit that is connected electrically to two connection pads belonging to the conductive track and that is arranged to monitor an electrical property of the conductive track, which electrical property varies with the deformation of the conductive track, and to compare that property with reference data so as to anticipate a failure of the suction cup.
    Type: Application
    Filed: November 19, 2018
    Publication date: November 19, 2020
    Inventors: Pierre MILHAU, Michel CECCHIN
  • Publication number: 20200269443
    Abstract: A vacuum chamber for a gripper including at least one fastener plate and at least one pneumatic accessory fastened in a perforation in the fastener plate. The pneumatic accessory is held in the perforation by an elastically deformable tubular interface including an external groove in which the periphery of the perforation is received so as to provide sealing between the plate and the interface, the interface defining a channel extending between a first end of the interface extending inside the chamber and a second end extending outside the chamber, at least a portion of the pneumatic accessory being inserted in the channel of the interface.
    Type: Application
    Filed: July 30, 2018
    Publication date: August 27, 2020
    Inventors: Julien BILLON, Pierre MILHAU, Michel CECCHIN
  • Patent number: 10693250
    Abstract: A fluid circulation device having at least one fluid circulation tube, a first coupling sealingly coupled to a first end of the tube and a second coupling sealingly coupled to a second end of the tube in such a way as to allow the circulation of fluid between said two couplings via the tube. The device further has separate electronic elements. The tube has at least one conductor track extending along an outer surface of the tube. The track is suitable for transmitting at least one signal and arranged to engage with the abovementioned electronic elements.
    Type: Grant
    Filed: February 26, 2016
    Date of Patent: June 23, 2020
    Assignee: COVAL
    Inventors: Pierre Milhau, Michel Cecchin
  • Publication number: 20180159254
    Abstract: A fluid circulation device having at least one fluid circulation tube, a first coupling sealingly coupled to a first end of the tube and a second coupling sealingly coupled to a second end of the tube in such a way as to allow the circulation of fluid between said two couplings via the tube. The device further has separate electronic elements. The tube has at least one conductor track extending along an outer surface of the tube. The track is suitable for transmitting at least one signal and arranged to engage with the abovementioned electronic elements.
    Type: Application
    Filed: February 26, 2016
    Publication date: June 7, 2018
    Applicant: COVAL
    Inventors: Pierre MILHAU, Michel CECCHIN
  • Patent number: 9815209
    Abstract: A modular vacuum gripper having a first plate, a second plate provided with at least one downstream orifice, framework members, assembly device for assembling the first plate, the second plate and the framework members, at least one upstream orifice situated on one of the walls of the vacuum gripper, sealing device, vacuum generation device adapted to suck out the air contained inside the vacuum gripper via the upstream orifice, and at least one deformable element extending over the second plate so as to form a sealed contact surface with the part when the air contained inside the vacuum gripper is sucked out.
    Type: Grant
    Filed: February 5, 2015
    Date of Patent: November 14, 2017
    Assignee: Coval
    Inventors: Maxime Pinet, Michel Cecchin, Pierre Milhau
  • Publication number: 20160346938
    Abstract: A modular vacuum gripper having a first plate, a second plate provided with at least one downstream orifice, framework members, assembly device for assembling the first plate, the second plate and the framework members, at least one upstream orifice situated on one of the walls of the vacuum gripper, sealing device, vacuum generation device adapted to suck out the air contained inside the vacuum gripper via the upstream orifice, and at least one deformable element extending over the second plate so as to form a sealed contact surface with the part when the air contained inside the vacuum gripper is sucked out.
    Type: Application
    Filed: February 5, 2015
    Publication date: December 1, 2016
    Applicant: COVAL
    Inventors: Maxime PINET, Michel CECCHIN, Pierre MILHAU
  • Publication number: 20160230779
    Abstract: A cartridge which includes a tubular body having a cylindrical surface enabling it to be inserted in a cylindrical housing in an axial direction (X), the cartridge being such that, in the tubular body, the following are integrated coaxially with one another: electrical connection method; control method; a first chamber which includes a first lateral orifice for admitting compressed air; at least a second chamber situated at a second end of the tubular body and including an air outlet orifice. the control method being suitable for selectively putting the first chamber and the second chamber in pneumatic communication so as to allow passage of air to the second chamber.
    Type: Application
    Filed: September 5, 2014
    Publication date: August 11, 2016
    Inventors: Pierre MILHAU, Michel CECCHIN, Loic JOGUET
  • Patent number: 9334128
    Abstract: A vacuum generator module having a substantially rectangular box housing electronic controls for controlling and monitoring the operation of pneumatic vacuum generators and their electrical connections with an electrical power supply and external control members, including an input connector and an output connector installed in one of the faces of the box. The first module is a master module that includes a microcontroller adapted to the communications protocol first of a fieldbus present in a vacuum handling machine incorporating the first module, and secondly of a bus that is dedicated to the other modules. Each of the other modules is a slave module including a microcontroller adapted to the communications protocol of the dedicated bus.
    Type: Grant
    Filed: February 29, 2012
    Date of Patent: May 10, 2016
    Assignee: COVAL
    Inventors: Pierre Milhau, Michel Cecchin
  • Publication number: 20130315761
    Abstract: The invention relates to a vacuum generator module comprising a substantially rectangular box housing: the pneumatic vacuum generator means and their channels for connection to an admission orifice for admitting a gas under pressure, to a gas exhaust orifice, and to a suction orifice, each orifice opening to the outside via one of the faces of the box; and electronic means for controlling and monitoring the operation of the pneumatic means and their electrical connections with an electrical power supply and external control members using a defined program, including two connectors, one being an input connector, and the other being an output connector likewise installed in one of the faces of the box; the set being characterized in that: the electronic means comprise a multi-network I/O microcontroller suitable for imparting a master or slave function to the module depending on whether the module is or is not directly connected to a fieldbus present in a vacuum handling machine incorporating the module.
    Type: Application
    Filed: February 29, 2012
    Publication date: November 28, 2013
    Applicant: COVAL
    Inventors: Pierre Milhau, Michel Cecchin
  • Patent number: 7938466
    Abstract: A suction gripper device comprising a pipe for connecting a suction source to a suction gripper member, the pipe comprising a first channel formed by a downstream chamber (5) and by an upstream duct (7), a seat (9) being provided between the chamber (5) and the duct (7), a valve member (6) being mounted to move with clearance inside the chamber (5) between a bottom abutment (2a, 22) and the seat (9), and a second channel (10) forming a calibrated bypass in parallel with the first channel and bypassing the seat (9), being of section that is smaller than the section (S) of the clearance that exists in the chamber (5) between its inside surface and the outside surface of the valve member (6) that can move therein, wherein the second channel (10) is formed through the center of the valve member (6).
    Type: Grant
    Filed: April 30, 2009
    Date of Patent: May 10, 2011
    Assignee: Coval
    Inventors: Loïc Joguet, Pierre Milhau, Michel Cecchin
  • Publication number: 20100175764
    Abstract: The invention relates to a device for controlling the opening and closing of a compressed gas consuming circuit (U), the device comprising a normally-closed two-position cutoff valve (2), said cutoff valve (2) having a pilot chamber (2a) and a counter-pilot chamber (2b) permanently in communication with a source (P) of compressed gas, directly for the pilot chamber (2a) and via a constriction (6) for the counter-pilot chamber (2b), the counter-pilot chamber including a purge branch connection (8) that is opened or closed by a two-position, two-port valve (9).
    Type: Application
    Filed: January 24, 2007
    Publication date: July 15, 2010
    Applicant: COVAL
    Inventors: Michel Cecchin, Pierre Milhau, Stephane Orieux, Lucien Baldas, Daniel Bouteille
  • Publication number: 20090273199
    Abstract: A suction gripper device comprising a pipe for connecting a suction source to a suction gripper member, the pipe comprising a first channel formed by a downstream chamber (5) and by an upstream duct (7), a seat (9) being provided between the chamber (5) and the duct (7), a valve member (6) being mounted to move with clearance inside the chamber (5) between a bottom abutment (2a, 22) and the seat (9), and a second channel (10) forming a calibrated bypass in parallel with the first channel and bypassing the seat (9), being of section that is smaller than the section (S) of the clearance that exists in the chamber (5) between its inside surface and the outside surface of the valve member (6) that can move therein, wherein the second channel (10) is formed through the center of the valve member (6).
    Type: Application
    Filed: April 30, 2009
    Publication date: November 5, 2009
    Inventors: Loic JOGUET, Pierre MILHAU, Michel CECCHIN