Patents Assigned to Legrand
  • Protection member for a mesh cable tray, and a tray including said member
    Patent number: 6855884
    Abstract: A mesh cable tray comprises a series of longitudinal wires and a series of transverse wires connected to one another at nodes to form a grid, in which each transverse wire includes a base portion from which two parallel arms extend transversely relative to the base portion so that each transverse wire is generally U-shaped. The series of longitudinal wires comprises a pair of longitudinal edge wires which are disposed beside free ends of the parallel arms of the U-shaped transverse wires. The tray has protection members arranged in the regions of the nodes at which the longitudinal edge wires and the parallel arms of the U-shaped transverse wires intersect, in order to cover the free ends of the parallel arms.
    Type: Grant
    Filed: October 4, 2002
    Date of Patent: February 15, 2005
    Assignee: Legrand S.p.A.
    Inventors: Gian Piero Spagnoli, Alan Finco
  • Automatically locking accessory for conduits
    Publication number: 20050012335
    Abstract: The present invention relates to an accessory for connecting a portion of a first conduit to a portion of at least one second conduit or to another accessory, which accessory comprises at a base element and an end element including complementary engagement means co-operating with one another to allow relative displacement between said end element and said base element between a position in which the end element is deployed relative to the base element, and a position in which the end element is retracted onto the base element. According to the invention, accessory includes resilient return means distinct from said complementary engagement means and suitable for acting between the base element and the end element in order to return the end element into said deployed position.
    Type: Application
    Filed: June 25, 2004
    Publication date: January 20, 2005
    Applicants: LEGRAND, LEGRAND SNC
    Inventor: Bruno Gautier
  • Method of and device for supplying electrical power to a load using a power modulation system including at least one controlled switch and overvoltage counting apparatus
    Patent number: 6813720
    Abstract: The operating mode of a power modulation system is determined according to the nature of the load. The power modulation system can operate in either of two operating modes, namely a “reverse phase control” mode and a “forward phase control” mode. To this end, the load is supplied with power under predetermined low-load operating conditions by the power stage in the “reverse phase control” mode, overvoltages are detected and the power modulation system is caused to change to the “forward phase control” operating mode if an excessive number of overvoltages is detected.
    Type: Grant
    Filed: December 13, 2000
    Date of Patent: November 2, 2004
    Assignees: LeGrand, LeGrand SNC
    Inventor: Didier Leblanc
  • Trunking connecting device
    Patent number: 6805514
    Abstract: A device for connecting at least two lengths of trunking includes a plate for joining backs of base sections of the trunking. The plate has on each of its edges adjacent cut edges of the trunking base sections longitudinal tongues which bear on two opposite faces of each back. The tongues are substantially plane, have a thickness from about 0.2 mm to about 1 mm, and bear elastically against the opposite faces of the back.
    Type: Grant
    Filed: July 12, 2001
    Date of Patent: October 19, 2004
    Assignees: Legrand, Legrand SNC
    Inventor: Yvon Buard
  • System for fastening cable mesh trays on support sections
    Publication number: 20040144898
    Abstract: A system for fastening a mesh cable tray on a support section is described, including at least one retaining member for retaining the tray on the section and capable, on the one hand, of engaging a bottom wire of the tray and, on the other hand, of engaging the free edge of a lateral wall, or of penetrating into an aperture provided on a lateral wall of the section and of engaging the contour of said aperture, at the transverse section plane in which the bottom wire is disposed, in such a way as to assume a stable coupling configuration.
    Type: Application
    Filed: December 4, 2003
    Publication date: July 29, 2004
    Applicant: LEGRAND S.P.A.
    Inventor: Gian Piero Spagnoli
  • Line connector with permanent or temporary screw clamp
    Patent number: 6739917
    Abstract: A line connector, such as a socket outlet or plug, includes at least one contact member such as a receptacle or pin and at least one connecting terminal which is electrically connected to the contact member and to which an electrical conductor can be connected. The connecting terminal has a tail which can be forcibly fitted into a tubular member for connecting a connecting terminal electrically to the contact member. Applications include demountable plugs and sockets.
    Type: Grant
    Filed: October 1, 2002
    Date of Patent: May 25, 2004
    Assignees: Legrand, Legrand SNC
    Inventors: Franck Croise, Dominique Deneu, Olivier Dixneuf, Loic Perruisseau-Carrier
  • Accessory for trunking comprising lengths of trunking with different heights
    Patent number: 6727434
    Abstract: The trunking accessory makes up trunking including two or more juxtaposed lengths with different heights each including a base section with two parallel lateral flanges. The accessory includes two or more cheeks adapted to be attached to the lateral flanges, and each cheek includes members for mounting a length of cover section that extend along a line with two or more opposite curves to establish continuity between members for mounting a length of cover section situated at two different heights.
    Type: Grant
    Filed: July 15, 2002
    Date of Patent: April 27, 2004
    Assignees: Legrand, Legrand SNC
    Inventors: Alain Jadaud, Raphaël Decore
  • Protection member for a mesh cable tray, and a tray including said member
    Publication number: 20040065459
    Abstract: A mesh cable tray comprises a series of longitudinal wires and a series of transverse wires connected to one another at nodes to form a grid, in which each transverse wire includes a base portion from which two parallel arms extend transversely relative to the base portion so that each transverse wire is generally U-shaped. The series of longitudinal wires comprises a pair of longitudinal edge wires which are disposed beside free ends of the parallel arms of the U-shaped transverse wires. The tray has protection members arranged in the regions of the nodes at which the longitudinal edge wires and the parallel arms of the U-shaped transverse wires intersect, in order to cover the free ends of the parallel arms.
    Type: Application
    Filed: October 4, 2002
    Publication date: April 8, 2004
    Applicant: LEGRAND S.P.A.
    Inventors: Gian Piero Spagnoli, Alan Finco
  • Trunking accessory and a combination including the accessory and trunking with a base section specifically adapted to suit the accessory
    Patent number: 6693238
    Abstract: An accessory for trunking includes a body provided at one end at least with attachment arrangements by which it can be attached locally to a longitudinal wall of the base section of the trunking. The attachment arrangements include a lug which can be clipped into a housing in the wall and includes an actuator tongue connected to a free end of the lug. The actuator tongue is accessible from the outside of the base section of the trunking and can be pulled in its longitudinal orientation direction to disengage from the housing the free end of the lug.
    Type: Grant
    Filed: February 5, 2002
    Date of Patent: February 17, 2004
    Assignees: Legrand, Legrand SNC
    Inventors: Alain Jadaud, Bruno Gautier
  • Method and a system for producing a power supply voltage for controlling an electronic switch
    Patent number: 6690150
    Abstract: A direct current supply voltage for controlling an electronic switch, for example a triac, is obtained from a residual voltage at the terminals of the switch when it is conducting. The electrical energy needed to produce an auxiliary power supply voltage is taken from the terminals of the electronic switch while it is conducting. The residual voltage is rectified and stepped up, for example using a regulated switch-mode power supply circuit as a rectifier/voltage step-up system.
    Type: Grant
    Filed: January 10, 2002
    Date of Patent: February 10, 2004
    Assignee: Legrand Legrand SNC
    Inventors: Laurence Pelletier, Alain Delaporte
  • Housing for devices to be disposed along trunking, in particular electrical devices
    Patent number: 6663199
    Abstract: A housing for devices to be disposed along trunking, projecting from a wall includes a frame which is attached to the wall to form the housing for the device, an opening along one side which adjoins the trunking and a canopy which extends from the frame in corresponding relationship with the opening to cover the trunking locally and transversely. The canopy has a mobile part provided with two parallel arms which are slidably mounted inside the frame so that the mobile part of the canopy can be located relative to the frame telescopically in a series of predefined stable positions corresponding to different widths of trunking.
    Type: Grant
    Filed: March 22, 2001
    Date of Patent: December 16, 2003
    Assignees: Legrand, Legrand SNC
    Inventor: Yvon Buard
  • Modular electrical appliances and housing comprising same
    Patent number: 6664468
    Abstract: A housing (1) designed to contain an assembly of modular electrical appliances mounted on a support (12, 14), whereof at least the first modular electrical appliance provided with data transmitters (36) and at least a second modular electrical comprising data receivers (42) enabling wireless communication from the first appliance to the second appliance. When the modular appliances are mounted in operating position, the data transmitters (36) of the first appliance are oriented opposite a surface of walls (2-8) of the housing. The data receivers can also be oriented opposite a wall surface of the housing.
    Type: Grant
    Filed: December 27, 2001
    Date of Patent: December 16, 2003
    Assignees: Legrand, Legrand SNC
    Inventors: Jean-Luc Jarasse, Gérard Tarrade
  • Support for devices, in particular for electrical devices, to be attached to the base section of trunking
    Patent number: 6641092
    Abstract: A support for a device, in particular for an electrical device, to be attached to a base section of trunking with rims directed towards each other has two crossmembers which interengage with the rims and each of which is equipped with arrangements for fixing the device. The fixing arrangements are attached to each crossmember by a flexible connection catering for a slightly offset position of the fixing arrangements in the general direction of the crossmember relative to a stable original position when fixing the device to the support.
    Type: Grant
    Filed: October 16, 2000
    Date of Patent: November 4, 2003
    Assignees: Legrand, Legrand SNC
    Inventors: Damien Adam, Bertrand Decore
  • Electrical equipment box with flexible fixing arrangements
    Publication number: 20030168450
    Abstract: An electrical equipment box includes a back incorporating one or more holes of elongate shape in a direction X for fixing the box to a wall. The hole or each hole is in a stud attached to the back by a flexible connection allowing a small offset of the hole relative to a stable original position in a direction Y parallel to the plane of the back and perpendicular to the direction X.
    Type: Application
    Filed: March 7, 2003
    Publication date: September 11, 2003
    Applicant: LEGRAND
    Inventor: Damien Adam
  • Connecting clamp, particularly for mesh cable trays with low sides
    Publication number: 20030156892
    Abstract: A connecting clamp for connecting a pair of end transverse wires of two consecutive mesh cable tray sections comprises a first element and a second element intended to be mounted inside and outside the mesh tray, respectively, so as to clamp the base parts of the two end transverse wires. The first element comprises a first portion which is coupled with the second element to clamp the base parts of the end transverse wires of the two tray sections and a second portion which is perpendicular to the first portion and forms a pair of seats for restraining the vertical parts of the end transverse wires.
    Type: Application
    Filed: February 14, 2003
    Publication date: August 21, 2003
    Applicant: LEGRAND S.P.A.
    Inventors: Alan Finco, Luca Garassino
  • Device for fixing mesh cable trays to a support bracket
    Publication number: 20030150968
    Abstract: A device for fixing a mesh cable tray to a profiled support section having a plurality of apertures formed in a surface for supporting the tray is described.
    Type: Application
    Filed: February 5, 2003
    Publication date: August 14, 2003
    Applicant: LEGRAND S.P.A.
    Inventors: Luca Garassino, Alan Finco
  • Angle accessory with variable angle for conduit
    Patent number: 6599056
    Abstract: An angle accessory includes a mask extending between the covers of two conduit sections to be connected. An angle accessory includes two supports, one for each conduit section, each of those two supports having assembling parts for being directly mounted on the corresponding conduit section base and receiving parts for jointly fixing therein the mask, the mask being divided in two separate side walls, one side wall for each support, hence one side wall for each conduit section.
    Type: Grant
    Filed: September 13, 2000
    Date of Patent: July 29, 2003
    Assignees: Legrand, Legrand SNC
    Inventors: David Piole, François Perrignon De Troyes, Bertrand Decore
  • Joining member for a mesh cable tray
    Publication number: 20030116682
    Abstract: The joining member is provided for connecting a first mesh cable tray element to a second, longitudinally adjacent mesh cable tray element and includes: a first plate portion with first apertures formed therein for fixing the first plate portion to vertical arms of transverse wires and/or to side longitudinal wires of the two mesh tray elements; and a second plate portion, substantially perpendicular to the first portion, having second apertures formed therein for fixing the said second plate portion to bottom portions of the transverse wires and/or to bottom longitudinal wires of the two mesh tray elements. In a variant of the invention, the joining member enables a first mesh tray element to be connected to a second, longitudinally adjacent channel-like cable duct element.
    Type: Application
    Filed: November 22, 2002
    Publication date: June 26, 2003
    Applicant: LEGRAND S.P.A.
    Inventors: Alan Finco, Luca Garassino
  • Joining clamp for a mesh cable tray and a connecting device comprising such a joining clamp
    Publication number: 20030108385
    Abstract: The joining clamp comprises separate first and second elements, with at least one of these forming seats for receiving a pair of facing end transverse wires of two adjacent sections of mesh cable tray. The clamp also comprises articulation means for articulated connection of the first and second elements in a pre-assembled condition in which these elements are rotatable relative to each other between an open position, in which the pair of facing end transverse wires can be inserted into the respective seats, and a closed position, in which the facing end transverse wires are securely locked in the seats. The clamp further comprises snap-engagement members for securing the first and second elements together upon relative rotation thereof from the open position to the closed position.
    Type: Application
    Filed: December 10, 2002
    Publication date: June 12, 2003
    Applicant: LEGRAND S.P.A.
    Inventors: Alan Finco, Luca Garassino
  • Tie
    Publication number: 20030088949
    Abstract: A tie includes a strap having two end segments connected by an extensible intermediate portion provided with a succession of frangible bridges each connecting a first part of the intermediate portion to a second part of the intermediate portion. Two or more of the frangible bridges have different sections.
    Type: Application
    Filed: November 13, 2002
    Publication date: May 15, 2003
    Applicant: LEGRAND (Societe Anonyme)
    Inventors: Jean-Pierre Barriuso, Herve Cornu