Patents Assigned to CAILLAU
  • Patent number: 12578044
    Abstract: The clamping system is used to connect a first and a second tube whose facing ends have bearing surfaces protruding relative to their cylindrical external surface. The clamping system has a clampable collar and a seal. The collar includes a belt able to cooperate with the bearing surfaces of the tubes by this internal periphery delimiting a recess into which the bearing surfaces can be inserted. The seal is supported by the collar in the unclamped state of the latter and has an annular sealing portion which includes a metal washer and a non-metal based washer fixed to the metal washer. The metal washer can carry support lugs to support the washers relative to the collar.
    Type: Grant
    Filed: March 26, 2021
    Date of Patent: March 17, 2026
    Assignee: Caillau
    Inventors: Abdelfettah Zinbi, Quentin Minet, Eric Mesnard
  • Patent number: 12181084
    Abstract: The clamping system is used to connect a first and a second tube whose facing ends have bearing surfaces protruding relative to their cylindrical external surface. The clamping system has a clampable collar and a seal. The collar includes a belt able to cooperate with the bearing surfaces of the tubes by this internal periphery delimiting a recess into which the bearing surfaces can be inserted. The seal is supported by the collar in the unclamped state of the latter and includes an annular sealing portion which includes a first washer and a second washer fixed to the first washer by retaining lugs carried by the first washer.
    Type: Grant
    Filed: March 26, 2021
    Date of Patent: December 31, 2024
    Assignee: Caillau
    Inventors: Abdelfettah Zinbi, Quentin Minet, Eric Mesnard, Stéphane Drivon
  • Publication number: 20230184356
    Abstract: The clamping system is used to connect a first and a second tube whose facing ends have bearing surfaces protruding relative to their cylindrical external surface. The clamping system has a clampable collar and a seal. The collar includes a belt able to cooperate with the bearing surfaces of the tubes by this internal periphery delimiting a recess into which the bearing surfaces can be inserted. The seal is supported by the collar in the unclamped state of the latter and has an annular sealing portion which includes a metal washer and a non-metal based washer fixed to the metal washer. The metal washer can carry support lugs to support the washers relative to the collar.
    Type: Application
    Filed: March 26, 2021
    Publication date: June 15, 2023
    Applicant: Caillau
    Inventors: Abdelfettah Zinbi, Quentin Minet, Eric Mesnard
  • Publication number: 20230160507
    Abstract: The clamping system is used to connect a first and a second tube whose facing ends have bearing surfaces protruding relative to their cylindrical external surface. The clamping system has a clampable collar and a seal. The collar includes a belt able to cooperate with the bearing surfaces of the tubes by this internal periphery delimiting a recess into which the bearing surfaces can be inserted. The seal is supported by the collar in the unclamped state of the latter and includes an annular sealing portion which includes a first washer and a second washer fixed to the first washer by retaining lugs carried by the first washer.
    Type: Application
    Filed: March 26, 2021
    Publication date: May 25, 2023
    Applicant: Caillau
    Inventors: Abdelfettah Zinbi, Quentin Minet, Eric Mesnard, Stéphane Drivon
  • Patent number: 11415250
    Abstract: The device includes a sealing sleeve suitable for being disposed around the facing ends of two tubes and a clamping sleeve inside which the sealing sleeve extends. One of the elements constituted by the sealing sleeve and by the clamping sleeve has at least one retaining member suitable for co-operating in axial retention inside the clamping sleeve with a retaining surface of one of the tubes, which retaining surface is covered by the clamping sleeve.
    Type: Grant
    Filed: February 6, 2018
    Date of Patent: August 16, 2022
    Assignee: Caillau
    Inventors: Nicolas Rigollet, Fabrice Prevot
  • Patent number: 11339903
    Abstract: The clamping system comprises a collar that comprises a belt suitable for being clamped around clamping surfaces projecting from tubes. The collar carries a series of angularly distributed foldable fingers, each finger presenting a free operating end projecting axially beyond the first edge of the belt over a distance that is sufficient to enable it to be manipulated by hand. Starting from an initial position in which the fingers define a rest minimum diameter, the fingers are suitable for being folded manually and plastically towards the axis of the belt in order to define a folded-in minimum diameter that is less than said rest minimum diameter.
    Type: Grant
    Filed: April 23, 2019
    Date of Patent: May 24, 2022
    Assignee: Caillau
    Inventors: Stéphane Drivon, Nicolas Rigollet
  • Patent number: 11313500
    Abstract: A belt has a sealing ring disposed in an annular recess of the belt and two tightening lugs born by the ends of the belt. The edges of the recess form wedging steps for the edges of the sealing ring which substantially occupy the entire width of the recess. The ends of the belt exhibit a sealing arrangement which includes lateral tabs, that are formed at the second end and which extend widthwise on the belt, from one edge of the belt to the recess such that each lateral tab includes a part of one of the wedging steps.
    Type: Grant
    Filed: December 12, 2019
    Date of Patent: April 26, 2022
    Assignee: Caillau
    Inventors: Nicolas Rigollet, Abdelfettah Zinbi
  • Patent number: 11112042
    Abstract: The tightening device includes a belt (10) having a first and a second end (10A, 10B) and a first and a second tightening lug (14A, 14B) carried by the belt which are formed respectively in a first and a second band portion (12A, 12B) respectively fastened to the outer face of the belt (10) in the vicinity of its first and its second end (10A, 10B). At least the first band portion (12A) is fastened to the belt (10) through at least a first fastening area (18A) formed on a boss (18?A) of the first band portion (12A) protruding inwardly and/or a boss of the belt protruding outwardly.
    Type: Grant
    Filed: December 16, 2019
    Date of Patent: September 7, 2021
    Assignee: Caillau
    Inventors: Nicolas Rigollet, Dylan Clerc
  • Publication number: 20200191308
    Abstract: The tightening device comprises includes a belt (10) having a first and a second end (10A, 10B) and a first and a second tightening lug (14A, 14B) carried by the belt which are formed respectively in a first and a second band portion (12A, 12B) respectively fastened to the outer face of the belt (10) in the vicinity of its first and its second end (10A, 10B). At least the first band portion (12A) is fastened to the belt (10) through at least a first fastening area (18A) formed on a boss (18?A) of the first band portion (12A) protruding inwardly and/or a boss of the belt protruding outwardly.
    Type: Application
    Filed: December 16, 2019
    Publication date: June 18, 2020
    Applicant: CAILLAU
    Inventors: Nicolas Rigollet, Dylan Clerc
  • Publication number: 20200191305
    Abstract: The device includes a belt (10), a sealing ring (22) disposed in an annular recess (11) of the belt and two tightening lugs (12A, 12B) born by the ends (10A, 10B) of the belt. The edges of the recess (11) form wedging steps for the edges of the sealing ring which substantially occupy the entire width of the recess. The ends (10A, 10B) of the belt exhibit a sealing arrangement which includes lateral tabs (28A, 28B), that are formed at the second end and which extend widthwise on the belt, from one edge of the belt to the recess (11) such that each lateral tab includes a part of one of the wedging steps.
    Type: Application
    Filed: December 12, 2019
    Publication date: June 18, 2020
    Applicant: CAILLAU
    Inventors: NICOLAS RIGOLLET, Abdelfettah Zinbi
  • Publication number: 20200011458
    Abstract: The device includes a sealing sleeve suitable for being disposed around the facing ends of two tubes and a clamping sleeve inside which the sealing sleeve extends. One of the elements constituted by the sealing sleeve and by the clamping sleeve has at least one retaining member suitable for co-operating in axial retention inside the clamping sleeve with a retaining surface of one of the tubes, which retaining surface is covered by the clamping sleeve.
    Type: Application
    Filed: February 6, 2018
    Publication date: January 9, 2020
    Applicant: CAILLAU
    Inventors: Nicolas Rigollet, Fabrice Prevot
  • Publication number: 20190331270
    Abstract: The clamping system comprises a collar that comprises a belt suitable for being clamped around clamping surfaces projecting from tubes. The collar carries a series of angularly distributed foldable fingers, each finger presenting a free operating end projecting axially beyond the first edge of the belt over a distance that is sufficient to enable it to be manipulated by hand. Starting from an initial position in which the fingers define a rest minimum diameter, the fingers are suitable for being folded manually and plastically towards the axis of the belt in order to define a folded-in minimum diameter that is less than said rest minimum diameter.
    Type: Application
    Filed: April 23, 2019
    Publication date: October 31, 2019
    Applicant: CAILLAU
    Inventors: Stéphane DRIVON, Nicolas RIGOLLET