Patents Assigned to Crouzet Automatismes
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Publication number: 20080029376Abstract: An electric control switch with a push-button comprises an electric contact having a first and a second electric state and an operating push-button having a first operating means designed to move due to the action of the external operating force. The operating push-button comprises a second operating means moving due to the action of an internal operating force to move the electric contact or contacts from the first electric state to the second electric state. The control switch comprises disconnection means between the first operating means and the electric contact or contacts. Said means comprise means for moving the electric contact or contacts from the first electric state to the second electric state and vice-versa at a speed the maximum value whereof is predetermined.Type: ApplicationFiled: June 29, 2007Publication date: February 7, 2008Applicant: Crouzet AutomatismesInventor: Olivier Ngoagouni
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Publication number: 20070242399Abstract: The invention relates to an electric arc detection device comprising analyzing means supplying current and voltage integration signals. The analyzing means supply current and voltage differential signals. Decision-making means comprise a disable unit supplying adaptive disable signals and comprising detection means supplying at least one decision-making aid signal according to at least one adaptive disable signal and to the current differential signal or the current integration signal. A decision-making unit supplies a trip signal according to the decision-making aid signals.Type: ApplicationFiled: April 4, 2007Publication date: October 18, 2007Applicant: Crouzet AutomatismesInventors: Herve Carton, Thomas Stemmelen
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Patent number: 7113062Abstract: An on-board circuit breaker that includes a push-button that enables the circuit breaker to be reset by depressing it, a power supply terminal and distribution terminal, two breaking contacts, and a main bimetal strip. Thermal deformation of the main bimetal strip trips the circuit breaker. The circuit breaker further includes an actuator able to trip the circuit breaker and an electronic circuit monitoring the electric signal. The electric signal is monitored to trip the actuator when predefined particular situations are identified. The circuit breaker also includes a movable reset enable part equipped with a pin. When the circuit breaker is tripped, the reset enable part moves in such a way that resetting the circuit breaker is possible only by depressing the reset enable part before or when the push-button is depressed.Type: GrantFiled: December 8, 2004Date of Patent: September 26, 2006Assignee: Crouzet AutomatismesInventors: Dominique Girot, Thierry Vinard, Dominique Meux, Herve Carton, Thomas Stemmelen
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Patent number: 6998555Abstract: An electrical miniswithch comprising a case including a case part forming a base having several electrical terminals extending therefrom, and a case part forming a cover, an instantaneous switching mechanism located in the case and comprising a flexible conducting blade subjected to a substantial pre-stress, and a push-button mounted sliding through the part of the case forming the cover to actuate the instantaneous mechanism. The miniswitch also comprises a compression spring opposing sliding of the push-button so that in the break position of the miniswitch the flexible conducting blade is biased by th push-button and the spring, retained by a stop on the push-button, and in the switched or make position of the miniswitch the conducting blade is not subjected to constraint from the push-button and the compression spring.Type: GrantFiled: November 1, 2004Date of Patent: February 14, 2006Assignee: Crouzet AutomatismesInventors: Stéphane Collot, Bernard Truchet, Christian Roux
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Patent number: 6980141Abstract: The invention relates to an analog input for electronic circuit, which input is intended to be connected to an electrical output of a sensor for measuring a physical parameter, the sensor being supplied with a supply voltage Vcc and providing at its electrical output an analog voltage Vs dependent on the parameter to be measured, the analog input comprising an analog/digital converter of resolution RN, wherein it comprises a computer controlling the analog/digital converter so as to perform an analog/digital conversion of the supply voltage Vcc, the analog/digital converter providing the computer with a digital value Rsupp of the supply voltage Vcc of the sensor, an analog/digital conversion of the analog voltage Vs of the parameter to be measured, the analog/digital converter providing the computer with a digital value r of the analog voltage Vs to be measured, and the computer providing a digital value Vn of the parameter to be measured such that: Vn=(r/Rsupp)RN.Type: GrantFiled: August 30, 2002Date of Patent: December 27, 2005Assignee: Crouzet AutomatismesInventor: François Trocque
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Patent number: 6968239Abstract: A tool which is entrusted with supervising and driving automatons that are “smart”; namely the tool can communicate with a microcomputer. This tool has a microcomputer, with a spreadsheet program connected through a driver, an operating system of the microcomputer, and a connection line to the automatons. The driver emulates the proprietary language for controlling and supervising the automatons.Type: GrantFiled: April 7, 2000Date of Patent: November 22, 2005Assignee: Crouzet AutomatismesInventors: André Chovin, Alain Chatenay
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Publication number: 20050134411Abstract: The invention relates to an on-board circuit breaker comprising A push-button which moves along its axis when the circuit breaker trips and which enables the circuit breaker to be reset by depressing same, centring key, A power supply terminal and a distribution terminal, Two breaking contacts, A main bimetal strip deformation whereof by thermal effect trips the circuit breaker, An actuator able to trip the circuit breaker, An electronic circuit monitoring the electric signal flowing between the power supply terminal and the distribution terminal, in order to send a tripping order to the actuator when predefined particular situations are identified.Type: ApplicationFiled: December 8, 2004Publication date: June 23, 2005Applicant: Crouzet AutomatismesInventors: Dominique Girot, Thierry Vinard, Dominique Meux, Herve Carton, Thomas Stemmelen
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Publication number: 20050109601Abstract: The invention relates to an electrical miniswitch comprising a case including a case part forming a base wherefrom several electrical terminals are salient and a case part forming a cover, an instantaneous switching mechanism placed in the case and comprising a flexible conducting blade subjected to a substantially longitudinal pre-stress, and a push-button mounted sliding through the part of the case forming the cover so as to actuate the instantaneous mechanism. According to the invention the miniswitch also comprises a compression spring opposing sliding of the push-button so that in the break position of the miniswitch the flexible conducting blade is kept biased by the push-button and the spring, by means of a stop placed on the push-button, and that in the switched position of the miniswitch the conducting blade is not subjected to any constraint from the push-button and the compression spring.Type: ApplicationFiled: November 1, 2004Publication date: May 26, 2005Applicant: Crouzet AutomatismesInventors: Stephane Collot, Bernard Truchet, Christian Roux
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Patent number: 6883161Abstract: A universal graph compilation tool. The tool is implemented on a microcomputer, and includes a spreadsheet associated with a library of graphical symbols and a compiler. Compiled code is transmitted via the operating system of the microcomputer to its output port to which are connected programmable memories of the components which must be controlled by the commands generated on the basis of graphs produced on the spreadsheet.Type: GrantFiled: May 16, 2000Date of Patent: April 19, 2005Assignee: Crouzet AutomatismesInventors: André Chovin, Alain Chatenay
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Patent number: 6655404Abstract: The invention refers to a control device for an actuator (1). The device, controlled by a control valve (20; 71; 80, 81), comprises slides (30, 31) to obtain different conditions of the control valve, and these slides (30, 31) are activated by a two-position fluidics solenoid valve (32, 33) to which a set-point instruction is applied (6). The control device comprises a processor (10) to be assured of the response of the solenoid valve depending on the set-point instruction (6) over the full range that the actuator (1) can cover.Type: GrantFiled: April 11, 2001Date of Patent: December 2, 2003Assignee: Crouzet AutomatismesInventor: Jean-François Hilaire
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Patent number: 6643112Abstract: An electromechanical relay including a mechanical displacement electrical contact and a transistor parallel-connected with the electrical contact. The contact is closed for a voltage V corresponding to the forward direction of the transistor and a powering-on of the transistor that starts before the closure of the contact and ends after the closure. The contact is opened for a voltage V corresponding to the forward direction of the transistor and a powering-on of the transistor that starts before the closure of the contact and ends after the closure. Such an electromechanical relay may find particular application to electromechanical switches, hybrid relays.Type: GrantFiled: February 8, 2001Date of Patent: November 4, 2003Assignee: Crouzet AutomatismesInventors: Hervé Carton, Denis Flandin
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Patent number: 6577035Abstract: The disclosure relates to an electric motor including a support block containing a ball bearing housing, a rotor that projects from this housing, and a stator assembly mounted around said rotor and fastened on said support block, characterized in that an annular seal, preferably of O-ring type, is squeezed between said stator assembly and the periphery of the fixed race of said ball bearing, the pressure of said annular seal preventing axial and rotational movement of said fixed race; the invention also proposes an assembly process for such an electric motor. The invention is notably suitable for sealed rotor motors.Type: GrantFiled: August 29, 2001Date of Patent: June 10, 2003Assignee: Crouzet AutomatismesInventors: Cyrille Coyac, Jean-Paul Vinay, Marc Gingeyne
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Patent number: 6518522Abstract: A position sensor for sensing the position of a moving part capable of actuating a plunger belonging to the sensor and more specifically a mechanism for orienting the plunger of the sensor. The sensor includes a guide that is rotationally orientable in a body about a first axis XX′ of rotation, and a plunger sliding without rotation in the guide along the axis XX′. A locator prevents rotation of the guide in the body about the axis of rotation, in a given angular position. The locator is fixed nonremovably in the body and possesses either several tabs spaced regularly about the guide and capable of fitting into one position groove to immobilize the guide or several position grooves in which one tab can fit to immobilize the guide. Such a position sensor may find particular application in detecting the positions of moving mechanical components.Type: GrantFiled: May 17, 2001Date of Patent: February 11, 2003Assignee: Crouzet AutomatismesInventors: Pierre Vinard, José Rodriguez, Bernard Truchet
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Patent number: 6486428Abstract: To improve the possibilities of using a fast-action switch with positive opening, of the end-of-travel type, the switch is equipped with a set of compression springs which cause its moving equipment to rock and with a set of compensating springs which allow its operating plunger to move through an additional travel after switching, without damaging interference with a positive opening paddle. The additional travel is increased by placing the compensating springs between a front conducting element and the moving equipment which rocks at the time of switching.Type: GrantFiled: May 2, 2001Date of Patent: November 26, 2002Assignee: Crouzet AutomatismesInventors: Christian Roux, Jacques Bojoly, Christian Minodier, Alain Pigat
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Patent number: 6396014Abstract: A device for amplifying the movement of an operating button of a switch, wherein the switch is fixed in a body of the device. The device includes a pusher that is translatable along an central longitudinal axis of the body. The translation of the pusher constitutes the amplified motion. The device also includes a varying-diameter cylindrical member, and a first support region. The first support region is capable of moving along a ramp of the pusher, when the pusher moves along the central longitudinal axis of the body. The varying-diameter cylindrical member includes a second support region in permanent contact with a region of the body, whatever the position of the pusher, and a third support region in contact with the operating button of the switch.Type: GrantFiled: October 27, 2000Date of Patent: May 28, 2002Assignee: Crouzet AutomatismesInventors: Christian Minodier, Bernard Truchet
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Patent number: 6351232Abstract: An electrical apparatus having at least one parametrizable function and which includes at least one potentiometer having an actuation member, cooperating with notched indexation devices demarcating several discrete positions of the actuation member. Each discrete position corresponds to a desired value of a parameter. An analogue/digital conversion and interpretation circuit receives an analogue voltage delivered by the potentiometer, dependent on the discrete position taken by the actuation member, and delivers a digital signal representative of the position of the actuation member and hence of the desired value of the parameter.Type: GrantFiled: May 30, 2000Date of Patent: February 26, 2002Assignee: Crouzet AutomatismesInventor: Jean-Louis Marie
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Patent number: 6347024Abstract: Hybrid power relay used for opening or closing electrical circuits, including an electrical contact having a mechanical movement, a semiconductor component in parallel with the electrical contact, and a control unit which in response to a logic input level causes the electrical contact to close (open) and the semiconductor component to be turned on. The control unit generates a contact-make signal for closing the contact, and a control signal that turn on the semiconductor component for a predetermined period of time. The control signal prevents the semiconductor component from being turned on after the predetermined period if the electrical contact fails to close so that the semiconductor component is undamaged.Type: GrantFiled: June 23, 2000Date of Patent: February 12, 2002Assignee: Crouzet AutomatismesInventors: Gérard Blain, Luc Raffestin
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Patent number: 6342779Abstract: In order to produce a phase control device which is free of the constraints of drifts due to the supply frequency or to the temperature of the components forming it, a method is recommended in which a command signal delivered by a control is modified by a converter in order that the activity of the actuator controlled by this device is a linear function, in all cases, of a control signal. As an improvement, account is taken of the variation in frequency of the supply signal by multiplying the convertible signal by a measurement of the duration of the period of the power signal.Type: GrantFiled: August 21, 2000Date of Patent: January 29, 2002Assignee: Crouzet AutomatismesInventor: Luc Raffestin
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Patent number: 6340881Abstract: The invention relates to an electrical apparatus, such as a timer, permanently supplied from the mains between two terminals A and B and the operation of which can be triggered by taking a control input E to the potential of the terminal B via an external contact SW. In order to take account of the possibility of a pilot lamp or another load being present between the terminals E and A, the following circuit structure is proposed: a low-voltage power-supply circuit AL, operating in half-wave rectification mode, supplies a voltage Vdd to a microcontroller MC. The terminal at Vdd is linked to the terminal B and the voltage regulation Vdd is carried out on another conductor at a potential regarded as a zero-volt reference. The control input E of the apparatus is linked to a detection input DT of the microcontroller.Type: GrantFiled: March 13, 2001Date of Patent: January 22, 2002Assignee: Crouzet AutomatismesInventor: Olivier Meyer
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Publication number: 20020005501Abstract: The invention refers to a control device for an actuator (1). The device, controlled by a control valve (20; 71; 80, 81), comprises means (30, 31) to obtain different conditions of the control valve, and these means (30, 31) are activated by means of a two-position fluidics solenoid valve (32, 33) to which a set-point instruction is applied (6). The control device comprises furthermore means (10) to be assured of the response of the solenoid valve depending on the set-point instruction (6) over the full range that the actuator (1) can cover.Type: ApplicationFiled: April 11, 2001Publication date: January 17, 2002Applicant: CROUZET AUTOMATISMESInventor: Jean-Francois Hilaire