Legris Sa

Legris Sas

Norma Autoline France Sas

Parker Hannifin Manufacturing France Sas

Philippe Blivet

Philippe Poder

Philippe Le Quere

Nicolas Le Bars

St&eacute;phane Gendrin

Pierre-Emmanuel Poirier

Fluid coupling formed as an assembly of a first body section having an end portion with studs and a second body section having an end portion configured to receive the end portion of the first body section and having grooves for receiving a corresponding one of the studs. Each of the grooves has an axial inlet section, and a blind section extending circumferentially from the inlet section to an end wall movable between a projecting position retaining the stud in the blind section and a retracted position allowing the stud to pass from the inlet to the blind section. Rotation of one of the body sections passes the studs in the retracted position of the groove end wall from the inlet section into the blind section, the studs being retained in the blind section in the projected position of the groove end wall to couple the body sections.

Bayonet connection for coupling bodies

A coupling device includes a tubular body () having a plastics material portion provided with an anchor member () for anchoring the tubular body in a first duct, the anchor member being made of metal. The anchor member is secured to a metal support element () that is covered at least in part in a layer of plastics material () compatible with the plastics material of said tubular body portion and that is connected to said portion by local welding of said portion with said layer. A method of fabricating such a coupling device.

Connecting device with welded body

Coupling device for a fluid circuit in a motor vehicle, the device including: a functional member of a plastic material that is provided with two or more types of connection, at least one of which includes a manually-accessible member projecting from the outside surface of the functional member; and a protective metal housing formed by two shells joined by a seam around the functional member, the housing being provided with a window giving access to the manually-accessible member.

Coupling device for a motor vehicle fluid circuit

A coupling device for coupling a pipe end to a circuit element, the device including a body axially subdivided into a joining section for joining to the circuit element and a connection section provided with a housing for receiving the pipe end, and elements for engaging it in leaktight manner, the engagement elements including at least one arm extending axially from the connection section and having a free, gripper end for gripping the pipe end, the arm being elastically deformable between a gripping state and a release state for releasing the pipe end; and a holding ring connected to the connection section to receive a portion of the pipe end and to pivot between a position allowing free deformation of the arm, and at least one holding position in which a surface of the ring holds the arm in one of its two states.

Instant coupling device with locking and/or disconnection means

A tubular element for securing to a tube end by friction-welding for the purpose of transporting a fluid, the element includes a body () having a housing () formed therein to receive the tube end, the housing having an inlet segment () for the tube end and a welding segment () with an inlet defined by a surface () for initiating welding. The housing further includes, between the inlet segment and the welding segment, at least one reception groove () for receiving a portion of the tube end that is pushed back during welding, the reception groove having a flank with at least a portion forming the weld-initiating surface and on its other side an abutment flank for the pushed-back portion. A method of friction welding is also disclosed.

Element weldable by friction to a tube end, and a corresponding welding method

A quick connector including a female part, a male part, and a latch. The latch includes a latching ring which slides within a housing of the female part, and a backing ring which is fitted on the latching ring and is slidable relative thereto. As the male part is inserted into the female part, the latching ring locks the parts and a folded tab of the backing ring is raised to provide a visual indication that male part is locked in the female part.

Coupling with an indicator

A guide bushing for guiding a tubular element in a bore of a coupling, the bushing being provided externally with retaining elements for retaining the bushing in the bore, and internally with guide shoes for guiding the tubular element inside the bushing, the retaining elements and the guide shoes being associated with portions of the bushing that are deformable between a first state in which the retaining elements are in an active position anchoring the bushing in the bore and in which the shoes define a section for passing the tubular element, and a second state in which the retaining elements are in inactive position set back from their active position and in which the guide shoes define a section that is smaller than the section for passing the tubular element. The invention also provides a corresponding coupling.

Guide bushing easily inserted into a coupling bore, and a corresponding coupling

A connector with enhanced safety includes: a female component defining a stepped housing, a male component with a flange, whereof the outer diameters correspond to those of the stepped housing of the female component, a lock collar transversely mobile in a base of the female component, located at the intake thereof. There is an additional locking cage whereof one wall forms a front cap at the end of the female component, mounted sliding on the base of the lock collar between a connecting position allowing the flange to pass through the front cap of the cage, and a locking position preventing the flange from passing through the front cap, the cage including, parallel to the cap and at the rear thereof, a wire pin whereof the elastic branches define each of the two positions through matching shapes with the female component.

Connector with enhanced safety

A junction element for a hydraulic fluid circuit, comprising a body ( ) which is provided with inner channels ( ) leading in an outer direction through a plurality of connection elements ( ) which can cooperate with outer channels and with the support ( ) of at least one sensor ( ) for the value of a physical parameter of the fluid circulating in one of the inner channels ( ) of the body.

Junction member for a hydraulic circuit

A protective endpiece for the end of a tube ( ), the endpiece comprises a sheath ( ) about an axis ( ) possessing a central housing ( ) for receiving the end of the tube ( ) and has an open end ( ) and a closed end ( ). The sheath is provided at its open end ( ) with a ring ( ) that is detachable from the sheath so that after the sheath ( ) has been removed and the end of the tube ( ) has been coupled to a piece of equipment ( ), the ring forms a stopper on,the end of the tube ( ) for closing the gap that exists between the end of the tube ( ) and the equipment ( ).

Protective end cap for tube end

The device comprises a tubular insert ( ) possessing external means ( ) for fixing it in a bore ( ) of the rigid element ( ) and internal means for axially locking the tube inside the insert ( ). The axial locking means comprise a sleeve ( ) disposed inside the tubular insert ( ) and possessing a broad end arranged to bear against an internal abutment member ( ) of the tubular insert ( ) and a narrow end that is elastically deformable in a radial direction between a small rest configuration where it forms an abutment for a shoulder ( ) of the tube ( ) and an enlarged elastically deformed configuration allowing the shoulder of the tube to pass through while it is being inserted.

Growing community of inventors

Rennes, France

Philippe Blivet