Patents Assigned to ETABLISSEMENT GEORGES RENAULT
  • Patent number: 11919144
    Abstract: An industrial device including a portable tool and a support for this tool. The tool is provided with a motor driving a mechanism in rotation, an electrical energy store to power the tool during operation and a controller to control the motor. The support includes a line, one extremity of which is affixed to the tool, a receiving element defining a location for the grasping of the tool and a winding apparatus of said line exerting a vertical tension to the tool so as to lighten its weight when it is no longer at its grasping location. The industrial device further includes a transmission of an electrical energy to charge the energy store when the tool is positioned in the receiving element. The tool is light weight tool while at the same time highly maneuverable in charging supercapacitors or a battery only when the tool is on the support.
    Type: Grant
    Filed: October 22, 2020
    Date of Patent: March 5, 2024
    Assignee: ETABLISSEMENTS GEORGES RENAULT
    Inventor: Guillaume Amiaux
  • Patent number: 11794316
    Abstract: A screw driving tool including: a motor; an impact mechanism driven by the motor along a rotational axis and held fixed in translation along the rotational axis. the impact mechanism has: a striker system with a striker element, a square drive including at least one strike reception element, the striker element being configured to come into contact with the at least one strike reception element to generate an impact torque, the striker system being configured to be driven in rotation, along the rotational axis, on at least 200° before impact. The impact mechanism has an anti-vibrational element configured so that, during an impact: the center of gravity of the impact mechanism is appreciably positioned on the rotational axis, and the rotational axis of the impact mechanism is appreciably on its main axes of inertia.
    Type: Grant
    Filed: December 22, 2020
    Date of Patent: October 24, 2023
    Assignee: ETABLISSEMENTS GEORGES RENAULT
    Inventor: Remi Beguin
  • Patent number: 11571791
    Abstract: An electromechanical tool including a casing, a shaft driving a tip in rotation and a rotary transformer. The rotating shaft integrates an electronic circuit configured to measure a physical parameter of the shaft, and the rotary transformer includes a stator fixedly attached to the casing and a rotor affixed to the rotating shaft. The stator integrates a first coil and a first support of this first coil, and the rotor integrates a second coil and a second support of this second coil. The supports are made out of plasto-ferrite material.
    Type: Grant
    Filed: December 17, 2019
    Date of Patent: February 7, 2023
    Assignee: ETABLISSEMENTS GEORGES RENAULT
    Inventors: Arnaud Gilibert, Julien Picard, Christophe Guihard
  • Patent number: 11422525
    Abstract: A method for controlling a level of screwing quality of a screwdriver relative to a predetermined screwing objective. The method includes: obtaining, at a predetermined angular frequency, a series of doublets representative of a rise in screwing torque for at least one screw, constituting a first table of values, each doublet including an angle value and a torque value; determining, from the first table, a second table of values presenting the torque as a function of the angle and being representative of the true characteristic of the at least one screw; determining a third table of values, presenting the torque as a function of the angle and being representative of disturbances induced by the screwdriver during the rise in torque, from the first and second tables; analysis of the third table, delivering information representative of a dispersion and/or a deviation relative to the screwing objective, resulting from the screwdriver-induced disturbances.
    Type: Grant
    Filed: November 8, 2019
    Date of Patent: August 23, 2022
    Assignee: ETABLISSEMENTS GEORGES RENAULT
    Inventor: Nicolas Jousset
  • Patent number: 11298755
    Abstract: A device for securely attaching a drilling device to a drill plate provided with a plurality of positioning bores. The attachment to the drill plate including an expandable collet with balls.
    Type: Grant
    Filed: December 10, 2019
    Date of Patent: April 12, 2022
    Assignee: ETABLISSEMENTS GEORGES RENAULT
    Inventor: Remi Bos
  • Patent number: 10875162
    Abstract: A pneumatic screw driving device includes a terminal element intended to cooperate with an element to be tightened/untightened and a body. The body houses: a pneumatic motor capable of rotationally driving the terminal element; an air intake into the motor; and a setting element for setting an intake section of the air intake into the motor. The setting element can take at least: a fixed state in which the intake section is fixed; and a setting state in which the intake section is adjustable between at least two values.
    Type: Grant
    Filed: December 27, 2018
    Date of Patent: December 29, 2020
    Assignee: ETABLISSEMENTS GEORGES RENAULT
    Inventors: Benoit Lefrancois, Serge Besnier
  • Patent number: 10850374
    Abstract: A system for controlling a portable tool with autonomous energy source, implementing at least one geo-positioning beacon external to the tool and capable of communicating with the portable tool. The system includes the following elements carried by the portable tool: a receiver, in or on the portable tool, for receiving control information delivered by the at least one beacon; and a processing unit, which determines the presence of the portable tool within or outside at least one pre-determined space, from the control information, communicates with a controller capable of managing the behavior of the tool as a function of the presence of the portable tool within or outside the pre-determined space or spaces and at least one pre-determined production rule.
    Type: Grant
    Filed: August 17, 2018
    Date of Patent: December 1, 2020
    Assignee: ETABLISSEMENTS GEORGES RENAULT
    Inventors: Laurent Pineau, Ghislain Francois, Gatien Butstraen
  • Patent number: 10603778
    Abstract: A pneumatic screw driving device includes a body having a grip to be held by an operator and housing a pneumatic motor, a rotating terminal member for cooperating with a screw driving element and liable to be driven in rotation by the motor, and a coupling piece for an air feed tube for supplying air to the motor. The coupling piece includes a first element partly mounted inside the grip, and a second element external to the grip for being connected to the air feed tube. The second element is fixedly attached to the first element by a rotating link. The first element and the second element are mobile relative to each other.
    Type: Grant
    Filed: September 28, 2017
    Date of Patent: March 31, 2020
    Assignee: ETABLISSEMENTS GEORGES RENAULT
    Inventors: Loic Michel, Nicolas Julou, Pascal Roussy
  • Patent number: 10474125
    Abstract: A method is provided for managing optional functions in a screw driving system using a fleet of at least two control hubs, each controlling at least one piece of production equipment and being capable of being used with at least one optional function. Each control hub stores non-differentiated tokens. The optional function is assigned a pre-defined weight, corresponding to a number of tokens. The optional function is pre-installed and deactivated in the control hub. The optional function can be selectively activated on the control hub if the control hub has available a number of tokens greater than the weight of the function, a quantity of tokens corresponding to the weight being debited from the number of tokens available to the control hub, and the function can be selectively deactivated. The quantity of tokens are then made freely usable. Two control hubs can transfer non-differentiated tokens to each other.
    Type: Grant
    Filed: December 11, 2017
    Date of Patent: November 12, 2019
    Assignee: ETABLISSEMENTS GEORGES RENAULT
    Inventors: Laurent Macquet, Gatien Butstraen, Nicolas Bocquet
  • Patent number: 9555534
    Abstract: A device is provided for screwing. The device includes a handle housing and a gear reduction housing. The handle housing includes a handle and lodges a motor. The gear reduction housing lodges a gear reduction unit, the input of which cooperates with the output of the motor. The gear reduction unit includes a single output cooperating with a rotating end element for cooperating with an element to be screwed. The gear reduction housing is linked to the handle housing by a rotating link. The rotating link is configured in a way such that a negligible reaction force is transmitted to the handle housing during an operation of screwing.
    Type: Grant
    Filed: October 3, 2013
    Date of Patent: January 31, 2017
    Assignee: ETABLISSEMENTS GEORGES RENAULT
    Inventors: Nicolas Le Du, Damien Limousin
  • Publication number: 20140166326
    Abstract: An electric screwdriver includes a housing, a motor having a rotor and a maximum torque at constant speed of Cmax, and an end member. A transmission drives the end member and has a reduction gear coupled to the motor and having a ratio R and an efficiency ?. A torque sensor detects an attainment of a set value torque Cc. A motor driver drives the motor with a series of electric current impulses, The transmission enables an accumulation of kinetic energy Ec in the rotor and a restitution to the end member of the kinetic energy Ec between two impulses from the motor driver. The motor and reduction gear are configured such that: R*?*Cmax<Cc, the set value of torque Cc being attained through the transfer of kinetic energy Ec to the end member, wherein ratio R is smaller than or equal to 10/(?Cmax).
    Type: Application
    Filed: April 20, 2012
    Publication date: June 19, 2014
    Applicant: ETABLISSEMENT GEORGES RENAULT
    Inventors: Nicolas Le Du, Julien Tropee
  • Patent number: 7987919
    Abstract: The invention relates to a discontinuous clamping wrench, of the type comprising a motor and a pulse clutch integrated in a casing, characterised in that it comprises measurement means of dynamic phenomena induced by said clamping on said casing, with a view to correlating said measurement with a clamping level.
    Type: Grant
    Filed: November 15, 2006
    Date of Patent: August 2, 2011
    Assignee: Etablissements Georges Renault
    Inventor: Norbert Paprocki
  • Publication number: 20100269646
    Abstract: A screwdriving tool is provided, which includes a drive shaft; an angle head having an output shaft whose axis of rotation is approximately orthogonal to the axis of the drive shaft; a transmission connecting the drive shaft to the output shaft; and at least one torque sensor built into the output shaft. The tool transmission includes at least one intermediate gear whose axis is appropriately parallel to the output shaft and which engages with a gear designed to turn the output shaft, and at least one bevel coupling connecting, directly or indirectly, the drive shaft to the intermediate gear or gears.
    Type: Application
    Filed: November 30, 2006
    Publication date: October 28, 2010
    Applicant: Etablissements Georges Renault
    Inventors: Nicolas Le Du, Jean-Clair Leme, Benoît Allenou
  • Patent number: 7735374
    Abstract: A screwing equipment that comprises at least one rotary member mounted in a tool body and capable of producing at least one vibrational frequency representing a wear condition of said rotary member(s). Such screwing equipment further comprises means for measuring said vibrational frequencies designed to communicate with means for processing, said measurement enabling same to be compared to at least one reference frequency in order to determine said wear condition.
    Type: Grant
    Filed: February 23, 2006
    Date of Patent: June 15, 2010
    Assignee: Etablissements Georges Renault
    Inventors: Vincent Marie, Nicolas Le Du, Benoît Allenou, Arnaud Gilibert, Laurent Pineau
  • Publication number: 20080271580
    Abstract: The subject of this disclosure concerns a screwing equipment comprising at least one rotary member (1), (21); (22), (3) mounted in a tool body (1)) and capable of producing at least one vibrational frequency representing a wear condition of said rotary member(s). The subject of this disclosure is characterized in that it comprises means for measure (5) said vibrational frequencies designed to communicate (1) with means for processing (52) said measurement enabling same to be compared to at least one reference frequency in order to determine said wear condition.
    Type: Application
    Filed: February 23, 2006
    Publication date: November 6, 2008
    Applicant: Etablissements Georges Renault
    Inventors: Vincent Marie, Nicolas Le Du, Benoit Allenou, Arnaud Gilibert, Laurent Pineau
  • Patent number: D644184
    Type: Grant
    Filed: January 10, 2011
    Date of Patent: August 30, 2011
    Assignee: Etablissements Georges Renault
    Inventor: Arnaud G. Gilibert
  • Patent number: D774860
    Type: Grant
    Filed: January 28, 2014
    Date of Patent: December 27, 2016
    Assignee: Etablissements Georges Renault
    Inventors: Stefan Colin, Chia Chun Hsieh
  • Patent number: D911804
    Type: Grant
    Filed: September 6, 2019
    Date of Patent: March 2, 2021
    Assignee: ETABLISSEMENTS GEORGES RENAULT
    Inventors: Christian van Oost, Benoit LeFrancois