Patents by Inventor Joseph Crestin

Joseph Crestin has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 7182614
    Abstract: Electrical contact with elastic return and process for forming electrical contact with elastic return. Electrical contact includes a conductive part having a front surface structured and arranged to face an open end. The conductive part has a cut arranged to form at least one flexible blade from the front surface of a conductive part. The instant abstract is neither intended to define the invention disclosed in this specification nor intended to limit the scope of the invention in any way.
    Type: Grant
    Filed: January 19, 2005
    Date of Patent: February 27, 2007
    Assignee: Societe d'Exploitation des Procedes Marechal (SEPM)
    Inventor: Joseph Crestin
  • Patent number: 7147518
    Abstract: An electrical connection device including a socket having at least one axial pressure contact arranged in insulation and at least one annular groove. A plug has at least one tubular contact that is coaxial about a direction of coupling of the plug with the socket. The at least one tubular contact includes a leading end having an end surface. The at least one tubular contact is structured and arranged to co-operate with the at least one axial pressure contact of the socket. The at least one annular groove opens out axially and is structured and arranged to receive therein the at least one tubular contact. At least a portion of the end face of the leading end of the at least one tubular contact presses against the at least one axial pressure contact when the at least one tubular contact is positioned in the at least one annular groove and when the plug is coupled with the socket.
    Type: Grant
    Filed: May 26, 2004
    Date of Patent: December 12, 2006
    Assignee: Société d' Exploitation des Procédés Maréchal (SEPM)
    Inventors: Gilles Marechal, Joseph Crestin, Fabrice Gilet
  • Publication number: 20050130475
    Abstract: Electrical contact with elastic return and process for forming electrical contact with elastic return. Electrical contact includes a conductive part having a front surface structured and arranged to face an open end. The conductive part has a cut arranged to form at least one flexible blade from the front surface of a conductive part. The instant abstract is neither intended to define the invention disclosed in this specification nor intended to limit the scope of the invention in any way.
    Type: Application
    Filed: January 19, 2005
    Publication date: June 16, 2005
    Applicant: SOCIETE D'EXPLOITATION DES PROCEDES MARECHAL (SEPM)
    Inventor: Joseph Crestin
  • Patent number: 6890006
    Abstract: Device for axial maintenance of a cylindrical element, wherein the device includes a coupling bushing comprising external threads, first nut strips which extend axially beyond the external threads, and a first internal pressure surface. A covering nut is provided which includes a second internal pressure surface configured to engage and deform ends of the first nut strips radially indwardly and towards the cylindrical element when the cylindrical element is introduced into the coupling bushing and the covering nut. A sleeve is also provided which includes second nut strips and an external diameter which is at most equal to an internal diameter of the coupling bushing, whereby the sleeve, with the second nut strips being introduced first, is adapted to be introduced into the coupling bushing.
    Type: Grant
    Filed: July 12, 2001
    Date of Patent: May 10, 2005
    Assignee: Société d'Exploitation des Procédés Maréchal (SEPM)
    Inventors: Joseph Crestin, Gilles Cordier
  • Publication number: 20040266260
    Abstract: Electrical connection device constituted by an active socket and a plug provided with at least one tubular contact that is coaxial about the direction for coupling the plug with the socket, and that is designed to co-operate with an opposing contact of the socket arranged in insulation, which insulation is provided with at least one passage in the form of an annular groove for introduction of said contact of the plug when the plug is being coupled with the socket, the device being characterized in that each contact of the socket is in the form of an axial pressure contact, and each passage in the form of an annular groove in the insulation is designed to pass a single plug contact by also opening out axially. This Abstract is not intended to define the invention disclosed in the specification, nor intended to limit the scope of the invention in any way.
    Type: Application
    Filed: May 26, 2004
    Publication date: December 30, 2004
    Applicant: Societe d' Exploitation des Procedes Marechal (SEPM), societe anonyme
    Inventors: Gilles Marechal, Joseph Crestin, Fabrice Gilet
  • Publication number: 20030085575
    Abstract: The invention concerns a device for axially retaining a cylindrical element and more particularly a cable (1) comprising a socket (7, 9) with an external thread and extended in the axial direction by clamping plates (9), and an overlapping nut (6) comprising internally a shrunk pressure surface (11) designed to act on the ends of the clamping plates (9) of the socket and radially deform them towards the cylindrical element (1) previously inserted into said socket after passing through said not (6). Said device is in particular characterised in that it further comprises a sleeve (8, 10) likewise provided with clamping plates (10) and whereof the external diameter is not larger than the internal diameter of the socket wherein said sleeve is designed to be inserted starting with said plates (10) with which it is provided, said socket being further internally provided with a shrunk pressure surface (12), designed to act on the sleeve clamping plates (10). In one embodiment, a packing seal is further provided.
    Type: Application
    Filed: April 18, 2002
    Publication date: May 8, 2003
    Inventors: Joseph Crestin, Gilles Cordier
  • Patent number: 6431888
    Abstract: A first electrical connector including a casing. An insulating support is disposed within the casing. A plurality of first electrical contacts are mounted in the insulating support. A bellows joint is disposed between the insulating support and the casing. At least one elastic mechanism is adapted to bias the bellows joint towards an extended position. The first electrical connector is adapted to connect to a second electrical connector having a plurality of second electrical contacts which engage the plurality of first electrical contacts. The bellows joint is adapted to move to a retracted position when the second electrical connector is connected to the first electrical connector.
    Type: Grant
    Filed: November 17, 2000
    Date of Patent: August 13, 2002
    Assignee: Societe d' Exploitation des Procedes Marechal (SEPM), societe anonyme
    Inventor: Joseph Crestin
  • Patent number: 6120305
    Abstract: A electric contact with elastic return comprising a contact head (2) that is fixed to the end (1') of an electric cable (1) or similar and is acted upon by the end of an elastic strip (3), the other end of which called the attachment end being fixed in the housing (6) of a device to be equipped. The contact according to the invention is remarkable particularly in that an area (1") of the cable (1) called the anchorage area, is fixed to the said device housing (6) close to the strip attachment end, and in that the cable (1) is in the shape of a hook (1'") between its anchorage area (1") and its end (1') fitted with the contact head (2), delimiting a free space in its concave curved part, whereas the contact head (2) has a contact surface (2c) placed perpendicularly to the longitudinal axis of the cable end (1') and is free to move elastically approximately coaxial with the said axis, the strip (3) being formed in the said free space also being acted upon by a spring (11) fixed to the device housing (6).
    Type: Grant
    Filed: July 21, 1998
    Date of Patent: September 19, 2000
    Assignee: Societe d'Exploitation des Procedes Marechal (SEPM)
    Inventor: Joseph Crestin
  • Patent number: 5478249
    Abstract: Electrical connection device comprising two connection elements of which one is mobile, and which are arranged to be capable of mutually coupling and uncoupling by rotation of the mobile element in the other element and to connect or reciprocally separate the opposing contacts with which they are provided. The mobile element is a coupler socket and the other element a connector outlet. The outlet is provided with a protective element which covers the contacts of the outlet when at rest, and which is rotationally mounted therein so as to be capable of being rotationally driven by the coupler socket during coupling. The protective element comprises two flaps which can slide with respect to one another and which are each provided with at least as many openings as there are contacts in the outlet and which are arranged in the same manner.
    Type: Grant
    Filed: April 8, 1994
    Date of Patent: December 26, 1995
    Assignee: Societe d'Exploitation des Procedes Marechal (SEPM), S.A.
    Inventor: Joseph Crestin
  • Patent number: 4732567
    Abstract: An apparatus and method for preventing a reversal in the relative displacement of male and female components when these components reach a particular position. One component is adapted to be displaced by hand relative to the other component in a first direction to couple the components and in a second direction opposite from the first direction to disengage the components. A support is rigidly attached to one of the components. A stud is mounted in the support to be displaceable away from an initial position in a direction perpendicular to the first direction. A guide ramp extending parallel to the first and second directions is positioned on the other component. The ramp has an abutment surface extending perpendicular to the first direction. One of the components is first displaced in the first direction, which causes a first surface of the ramp to displace the stud perpendicular to the first direction.
    Type: Grant
    Filed: August 13, 1986
    Date of Patent: March 22, 1988
    Assignee: Societe d'Exploitation des Procedes Marechal (SEPM), S.A.
    Inventor: Joseph Crestin