Patents Assigned to La Telemecanique Electrique
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Patent number: 4236641Abstract: Mounting for the fixing of equipment comprising a base plate equipped with means of hooking and ratching on flanges.The mounting includes two parallel uprights whose facing surfaces are connected by a series of T-shaped cross-pieces, fixed in openings in said uprights, in accordance with specific rules of spacing.Type: GrantFiled: March 14, 1978Date of Patent: December 2, 1980Assignee: La Telemecanique ElectriqueInventor: Jacques Marcenne
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Patent number: 4237355Abstract: An arc blowing element comprises two parallel arms and a stem disposed in the neighborhood of a support for a fixed contact, and a deflector coupled to an extremity of that arm which is remote from the contact and to which it is perpendicular, in order to extend up to the arc extinction chamber.Type: GrantFiled: January 25, 1978Date of Patent: December 2, 1980Assignee: La Telemecanique ElectriqueInventors: Louis Fechant, Jean-Pierre Guery, Gabriel Martin
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Patent number: 4230388Abstract: A connection means serves for the electrical coupling of ends of bus bars situated in protection sheaths, and has clips under the action of resilient members and associated with each phase to be connected, the clips being actuated by as many locking means as there are phases to be coupled. The heads of the locking means have a shape and arrangement such that the mechanical association of the upstream and downstream sheath ends can only be effected in the open state of the clips, while the positive closing of the device can only be effected in the inverse state.Type: GrantFiled: July 30, 1979Date of Patent: October 28, 1980Assignee: La Telemecanique ElectriqueInventors: Jean-Pierre Thierry, Alain Debionne, Daniel Nourry
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Patent number: 4218579Abstract: An electricity distribution column for administrative premises is made up of a U-shaped section whose top does not touch the ceiling and receives a tubular extension going up to the latter and receiving the connecting conductors, the ends of the branches of the U serving as a guide for a flexible cover inserted either from the top or the bottom.Type: GrantFiled: March 29, 1978Date of Patent: August 19, 1980Assignee: La Telemecanique ElectriqueInventor: Jean Joly
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Patent number: 4214607Abstract: Unidirectional flow limiter housed in a union between a pipe and a user apparatus, comprising a first channel, a second channel, a flow reduction member between the two channels, a third channel, a non-return valve in the third channel and constituted by a deformable annular member placed concentrically about one of the first or second channels.Type: GrantFiled: January 11, 1979Date of Patent: July 29, 1980Assignee: Societe Anonyme: La Telemecanique ElectriqueInventor: Daniel Bouteille
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Patent number: 4194533Abstract: The invention provides a control circuit for a pneumatic shift register constituted by phase cells associated with an assembly of two threshold relays, each having a supply input and a control input which inhibits the output when the pressure that it receives is not lower than a pressure threshold which is low with respect to the control threshold of the memory contained in the cell.Type: GrantFiled: April 14, 1977Date of Patent: March 25, 1980Assignee: La Telemecanique ElectriqueInventors: Daniel Bouteille, Andre Thomasse, Eric Petrimaux
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Patent number: 4180304Abstract: An electrical appliance in which flexible conductors connect the terminals of the plug to the terminals of the body, the plug being divided into elements capable of being separated in order to facilitate soldering and then reassembled on installation, the arrangement being advantageous for small devices such as relays.Type: GrantFiled: December 2, 1977Date of Patent: December 25, 1979Assignee: La Telemecanique ElectriqueInventor: Gerard Lerude
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Patent number: 4171007Abstract: Unidirectional flow limiter housed in a union between a pipe and a user apparatus, comprising a first channel, a second channel, a flow reduction member between the two channels, a third channel, and a non-return valve in the third channel constituted by a deformable annular member placed concentrically about one of the first or second channels.Type: GrantFiled: March 3, 1977Date of Patent: October 16, 1979Assignee: Societe Anonyme: La Telemecanique ElectriqueInventor: Daniel Bouteille
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Patent number: 4168443Abstract: In a two-wire proximity detector, a supply to a probe and auxiliary apparatus is obtained from a bridge rectifier through two regulating circuits of which the first operates when an inhibitor transistor is conducting, while the second operates when the inhibitor transistor is blocked. The first regulating circuit is of the ballast type. The second regulator circuit is of the type which produces a delay in the triggering of a switch thyristor (9). The detector can be fed with an alternating voltage variable over a wide range.Type: GrantFiled: December 2, 1977Date of Patent: September 18, 1979Assignee: La Telemecanique ElectriqueInventor: Jean-Marie Periot
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Patent number: 4114848Abstract: Perforated mounting plate permitting the attachment of electrical equipment whose center-to-center distances and the diameter of the fixing members are in accordance with certain recommended dimensions.Type: GrantFiled: November 5, 1976Date of Patent: September 19, 1978Assignee: La Telemecanique ElectriqueInventor: Pierre Jean Bernard
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Patent number: 4089043Abstract: Chassis comprising cross members joined by slides intended to hold printed circuit boards. The end of the slides is shaped to engage in, and be centered between the arms of an extruded section, the cross-section of which resembles a spring clamp.Type: GrantFiled: October 5, 1976Date of Patent: May 9, 1978Assignee: La Telemecanique ElectriqueInventors: Gilbert Fraboni, Jean Neyroud
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Patent number: 4056769Abstract: A direct current proximity detector having a first terminal directly connected, to a terminal of a supply source and second and third terminals connected to the other terminal of the supply source through a load, an oscillator associated with a detector of its state of oscillation, a voltage stabilizer and a static switching device. The switching device comprises first and second transistors, the conducting state of the respective transistors depending upon the state of a corresponding output of an inverter unit which is controlled by the detector. The two transistors are connected to the first terminal through a Zener diode, second and third terminals being interconnected by means of two serially connected diodes of opposed polarities the common point of which supplies the voltage stabilizer.Type: GrantFiled: February 25, 1976Date of Patent: November 1, 1977Assignee: La Telemecanique ElectriqueInventors: Marcel Lefebvre, Alain Rouquet
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Patent number: 4045632Abstract: The invention relates to a quick make and break switch, particularly to measures which permit the positive opening of the normally closed contacts if the contacts in question are welded, and then to utilize the measures taken to make possible the opening of contacts even in the case where the elastic element necessary for rapid opening is fractured.According to the invention, this is achieved in that the rocking lever has a second arm whose second end arranged opposite the first end is located in the vicinity of the movable contact and is supported beneath the inverter member in the form of a rigid bracket if the latter has not switched under the action of the elastic blade at the time when alignment is performed and in that the lever pivot is located substantially equidistantly from the push-button of the second end.Type: GrantFiled: December 19, 1975Date of Patent: August 30, 1977Assignee: La Telemecanique ElectriqueInventor: Henri Pierrot
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Patent number: 4040694Abstract: Cabinet and cubicle formed by assembling framework members having at their ends on the one hand two cylindrical openings, and on the other two conical cylindrical projections which are centered in the said openings, whereby a screw traverses each projection to ensure the fastening by means of a nut which is supported on the edges of the opening.Type: GrantFiled: December 3, 1975Date of Patent: August 9, 1977Assignee: La Telemecanique ElectriqueInventor: Alain Lascarrou
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Patent number: 4039902Abstract: This invention relates to a system for interconnecting pluggable logic modules, for example in industrial automation or process control systems. The modules incorporate flexible connecting members which enable them to be plugged directly onto the ends of a series of parallel metal pins which are arranged in a regular pattern on one or more insulating supports, the pins having conductive portions intermediate their ends which are accessible from the side of the supports to which the modules are plugged, the said conductive portions of the pins being standarized so as to allow conductors which interconnect the modules to be readily attached to said sections.Type: GrantFiled: March 27, 1974Date of Patent: August 2, 1977Assignee: La Telemecanique ElectriqueInventors: Guy Lacan, Andre Vergez
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Patent number: 4032823Abstract: An improved supply circuit for electromagnets. The supply circuit comprises a bridge rectifier, an attracting winding positioned in the diagonal of the bridge rectifier, a holding winding placed on the magnetic circuit of the electromagnet, and an isolating contact which isolates the bridge at the end of the pulling-in course of the movable member of the magnetic circuit. The holding winding being connected in parallel across the system formed by the isolating contact and the bridge rectifier.Type: GrantFiled: October 21, 1975Date of Patent: June 28, 1977Assignee: La Telemecanique ElectriqueInventors: Jacques Arvisenet, Jean-Pierre Guery, Jacques Olifant, Christian Thomas
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Patent number: 4027692Abstract: Pneumatic logic system.The logic chain is established by juxtaposition of logic modules each of them being provided with a selecting organ having at least two positions allowing to modify the circuit diagram.Advantageous system for the sequential control of machines by pneumatic way.Type: GrantFiled: March 17, 1975Date of Patent: June 7, 1977Assignee: La Telemecanique ElectriqueInventors: Daniel Bouteille, Pierre Hardouin, Andre Thomasse
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Patent number: 4025862Abstract: An improved power supply apparatus for providing a stabilized low voltage d.c. output from the a.c. mains, comprises two distinct chopper stages, each having its regulation control loop which operates by duty cycle control. The first loop includes a current limiter and provides a rough regulation of the output voltage as a function of the mains variations, whereas the second loop provides a fine regulation of the output voltage as a function of the load variations, and isolation with respect to the load.Type: GrantFiled: December 4, 1975Date of Patent: May 24, 1977Assignee: La Telemecanique ElectriqueInventor: Jean-Francois Gautheron
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Patent number: 4018498Abstract: The invention relates to a clamp for a movable rack connected to the bus-bars located in a cabinet.The clamp comprises arms staggered in the direction of the bars permitting the back-to-back plugging in of identical racks on the same of bus-bars.This construction and arrangement of the clamp is advantageous for power distribution panels.Type: GrantFiled: December 3, 1975Date of Patent: April 19, 1977Assignee: La Telemecanique ElectriqueInventor: Alain Lascarrou
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Patent number: 4018249Abstract: A bleed valve can take two distinct positions, whereby in the first, in the absence of control pressure, it applies its orifice against a timing device by pneumatic means which it maintains set and in the second it is removed from the device by a certain distance before being caught up by the latter.This apparatus is used in automatic pneumatic control systems.Type: GrantFiled: November 12, 1975Date of Patent: April 19, 1977Assignee: La Telemecanique ElectriqueInventor: Felix Lameyre