Patents by Inventor Fabrice Prevot

Fabrice Prevot 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).

  • Publication number: 20170292643
    Abstract: The device comprises a clamping collar (10) having a belt (12) suitable for being tightened around an article, and an outer sleeve (16) disposed around the belt, the sleeve being carried by the belt by means of a plurality of fastener tabs (18). Each fastener tab (18) is fastened to the sleeve (16) by a fastening zone (18A) and extends towards the axis (A) of the collar from said fastening zone until it reaches a pinch branch (18B) that is folded back under the belt in a configuration for being pinched between the inside surface of the belt and the article around which the belt is to be tightened.
    Type: Application
    Filed: April 10, 2017
    Publication date: October 12, 2017
    Inventors: Fabrice PREVOT, Nicolas RIGOLLET
  • Publication number: 20170284578
    Abstract: The system comprises a clamping collar (10) having a clamping band (14) suitable for being tightened around the abutting ends (12A, 12?A) of the two tubes (12, 12?). The collar (10) has a retaining tab (30) that presents a fastener portion (32) whereby said retaining tab (30) is fastened to the band (14) of the collar and that extends substantially axially towards an attachment portion (34) of said retaining tab (30) whereby said retaining tab is suitable for being attached to the first tube (12) in the vicinity of its first end (12A).
    Type: Application
    Filed: September 3, 2015
    Publication date: October 5, 2017
    Inventors: Fabrice PREVOT, Nicolas RIGOLLET, Stéphane DRIVON
  • Publication number: 20170254454
    Abstract: The clamping system comprises a collar (10) having a band (12) that has two flanks (13A, 13B), between which an inside trough (14) is defined that receives projecting clamping surfaces (1A, 2A) of two tubes (1, 2) to be assembled together. The system further comprises a plurality of individual retaining clips (20) distributed angularly around the first flank (13A), each clip having an inside branch (30) and an outside branch (32) facing each other, and between which the first flank is pinched, and a retaining portion (34) that, in the pre-attached state, is suitable for co-operating with the clamping surface (1A) of the first tube (1), one of the branches carrying a first bearing zone (36) that co-operates with a first bearing surface (13?A) of the collar that faces towards the axis (A) of said collar.
    Type: Application
    Filed: March 3, 2017
    Publication date: September 7, 2017
    Inventors: Cyril VOSGEOIS, Fabrice PREVOT, Nicolas RIGOLLET, Patrick GOULET
  • Publication number: 20170158399
    Abstract: A clamping collar comprising a looped metal strap (10), and a transverse buckle (12) retained at the first end of the strap. On the outer side, the buckle forms a passage (13) through which the second end of the strap (10B) is inserted. The buckle has an inner portion (14) that is disposed against the inner face of the first end of the strap and that has a blocking transverse edge (14A) that co-operates with a blocking transverse stop (16A) of the first end of the strap that defines a blocking setback (16). The second end (10B) of the strap has a retaining transverse stop (11) received in the blocking setback (16) and co-operating in abutment with a retaining edge (17A) of said blocking setback to retain the second end of the strap to prevent it from moving in the direction in which the diameter of the collar increases.
    Type: Application
    Filed: June 22, 2015
    Publication date: June 8, 2017
    Applicant: Etablissements Caillau
    Inventors: Fabrice PREVOT, Nicolas RIGOLLET, Arnaud JACQUELIN
  • Publication number: 20170097024
    Abstract: The clamping collar comprises a belt (10) looped back onto itself and having two ends provided with lugs (12, 14) that are upstanding and that are suitable for being brought closer together for tightening the collar. The collar has a spacer (22) having a land (24) extending between the ends (10A, 10B) of the belt (10), and a web (26) comprising at least a first tab that is upstanding relative to said land, which web extends between the lugs. The spacer is formed by a strip that is folded between a first fold at the junction between the first tab and the land (24) and a second fold situated at a first end of the land, the land having a first double-walled portion between the first and second folds.
    Type: Application
    Filed: September 30, 2016
    Publication date: April 6, 2017
    Inventors: Stéphane DRIVON, Fabrice PREVOT
  • Patent number: 9593788
    Abstract: The collar has a metal belt (10), a pair of projecting lugs (12, 14), a tightening rod (16) disposed in holes in the lugs, and tightening members (16A, 16B) co-operating with the rod and with bearing portions of the lugs. At least one of the lugs in the pair is a lug (14) having an extension, the bearing portion of which lug is formed in an extension (17) of the lug, which extension is folded over towards the rear of the lug, and is provided with a hole for the tightening rod. The extension (17) and the front portion (15) of the lug (14) having an extension are interconnected via a strip portion (20) forming a link loop defining an axial tunnel having its two axial ends open, the tunnel being shaped so that the angle of inclination between the extension (17) and the front portion (15) of the lug can change when the collar is tightened.
    Type: Grant
    Filed: April 10, 2013
    Date of Patent: March 14, 2017
    Assignee: Etablissements Caillau
    Inventors: Nicolas Rigollet, Fabrice Prevot
  • Patent number: 9556982
    Abstract: A device includes a sealing ring that clamps around facing ends of two tubes, and that has first and second free ends, each of which is provided with a sealing arrangement suitable for coming into leaktight contact. First and second tightening lugs are fastened to the sealing ring in the vicinities of the first and the second free ends. The device has a bridge covering the sealing arrangements, the bridge being mounted to be stationary relative to the first free end of the ring and suitable for sliding relative to the second free end of the ring.
    Type: Grant
    Filed: April 10, 2014
    Date of Patent: January 31, 2017
    Assignee: ETABLISSEMENTS CAILLAU
    Inventors: Fabrice Prevot, Nicolas Rigollet, Cyriaque Fouqueray
  • Patent number: 9273706
    Abstract: Disclosed is a clamping collar which includes a belt made up of two belt portions, each of which has a first end provided with a tightening tab and a second end provided with an assembly member. The assembly members are suitable for co-operating to assemble the second ends together in a releasable manner. The collar also includes tightening means suitable for co-operating with the tightening tabs so as to move the tabs relative to each other once the second ends are assembled together, in such a manner as to tighten the collar.
    Type: Grant
    Filed: October 28, 2011
    Date of Patent: March 1, 2016
    Assignee: Etablissements Caillau
    Inventors: Nicolas Rigollet, Fabrice Prevot
  • Patent number: 9212769
    Abstract: The clamping collar comprises a metal belt (10), two tightening lugs (12, 14), and a bridging plate (20) for bridging the gap between the lugs. The belt includes an overlap portion (22) that has its inside face provided with a setback (24) into which a first end (20A) of the plate penetrates during tightening of the collar. The setback is defined by a first joggle (26) having an end wall that forms two surfaces on either side of the longitudinal midline of the belt, which surfaces are disposed substantially symmetrically about said midline, and are inclined both relative to the longitudinal direction and relative to the transverse direction of the belt, and each of which surfaces extends over a substantial fraction of the half-width of the belt.
    Type: Grant
    Filed: June 20, 2011
    Date of Patent: December 15, 2015
    Assignee: ETABLISSEMENTS CAILLAU
    Inventors: Nicolas Rigollet, Fabrice Prevot, Arnault Jacquelin, Eric Mesnard
  • Patent number: 9182063
    Abstract: Disclosed is a collar which includes a belt carrying first and second tightening lugs, a threaded tightening rod, and first and second nuts that co-operate respectively with the lugs so as to bring them towards each other by screw engagement with the rod. The second nut is retained so that it is prevented from moving in rotation relative to the second lug and the rod has first and second threads that co-operate respectively with the first nut and with the second nut in such a manner that driving the first nut in its screwing direction successively causes said first nut to be screwed onto the first thread, and the tightening rod to be driven, thereby screwing said tightening rod into the second nut.
    Type: Grant
    Filed: March 12, 2012
    Date of Patent: November 10, 2015
    Assignee: Etablissements Caillau
    Inventors: Nicolas Rigollet, Fabrice Prevot
  • Patent number: 9009927
    Abstract: The system comprises a clamping collar (10) suitable for being brought resiliently from its rest configuration in which its diameter is small to an expanded configuration. The system further comprises a support ring (20) suitable for being encircled by the collar, and an expander (40) suitable for co-operating with the ring firstly to hold the ring in an expanded configuration in which the collar (10) encircling the ring is also in its expanded configuration when the expander and the ring are in a first relative position, and secondly to enable the ring to contract and the clamping system to tighten under the resilient return force exerted by the collar encircling the ring when the expander and the ring are in a second relative position.
    Type: Grant
    Filed: July 11, 2008
    Date of Patent: April 21, 2015
    Assignee: Etablissements Caillau
    Inventors: Nicolas Rigollet, Fabrice Prevot, Tony Rointru
  • Publication number: 20150074952
    Abstract: The collar has a metal belt (10), a pair of projecting lugs (12, 14), a tightening rod (16) disposed in holes in said lugs, and tightening members (16A, 16B) co-operating with said rod and with bearing portions of the lugs. At least one of the lugs in the pair is a lug (14) having an extension, the bearing portion of which lug is formed in an extension (17) of said lug, which extension is folded over towards the rear of said lug, and is provided with a hole for the tightening rod. The extension (17) and the front portion (15) of the lug (14) having an extension are interconnected via a strip portion (20) forming a link loop defining an axial tunnel having its two axial ends open, said tunnel being shaped so that the angle of inclination between the extension (17) and the front portion (15) of the lug can change when the collar is tightened.
    Type: Application
    Filed: April 10, 2013
    Publication date: March 19, 2015
    Inventors: Nicolas Rigollet, Fabrice Prevot
  • Publication number: 20150008663
    Abstract: The clamping device comprises a clamping collar (10) having a belt (12) that is suitable for being tightened. The device further comprises an outer sleeve (16) carried by the collar (10) while being disposed around the belt, the sleeve extending axially on either side of the belt.
    Type: Application
    Filed: July 2, 2014
    Publication date: January 8, 2015
    Inventors: Stéphane DRIVON, Fabrice PREVOT, Nicolas RIGOLLET
  • Publication number: 20140306449
    Abstract: The device comprises a sealing ring (10) that clamps around the facing ends of the two tubes, and that has first and second free ends, each of which is provided with a sealing arrangement (11A, 11?A, 11B, 11?B, 11C, 11?C) suitable for coming into leaktight contact. First and second tightening lugs (12, 112) are fastened to the sealing ring (10) in the vicinities of said first and said second free ends (10A, 10B). The device has a bridge (20) covering the sealing arrangements, the bridge being mounted to be stationary relative to the first free end of the ring and suitable for sliding relative to the second free end of the ring.
    Type: Application
    Filed: April 10, 2014
    Publication date: October 16, 2014
    Applicant: ETABLISSEMENTS CAILLAU
    Inventors: Fabrice PREVOT, Nicolas Rigollet, Cyriaque Fouqueray
  • Patent number: 8671525
    Abstract: The collar has a roughly cylindrical metal band and a pair of ears projecting from this band and defining a tightening space between themselves. It also has a tightening device for pulling these ears towards each other. The ears have an extension which is bent around behind each ear away from the other ear and which has a hole for the tightening rod and the tightening device, this hole being lined up with a hole in the forward part of the same area ear. A bracing space is provided between the bent extension and this forward part. The holes of the extension and of the forward part each have an edge portion with a guard which extends into the bracing space and an edge portion without a guard which is aligned with the guard of the other hole.
    Type: Grant
    Filed: July 10, 2009
    Date of Patent: March 18, 2014
    Assignee: Etablissements Caillau
    Inventors: Fabrice Prevot, Cyriaque Fouqueray, Mickaël Gapteau
  • Publication number: 20140007385
    Abstract: Disclosed is a collar which includes a belt carrying first and second tightening lugs, a threaded tightening rod, and first and second nuts that co-operate respectively with the lugs so as to bring them towards each other by screw engagement with the rod. The second nut is retained so that it is prevented from moving in rotation relative to the second lug and the rod has first and second threads that co-operate respectively with the first nut and with the second nut in such a manner that driving the first nut in its screwing direction successively causes said first nut to be screwed onto the first thread, and the tightening rod to be driven, thereby screwing said tightening rod into the second nut.
    Type: Application
    Filed: March 12, 2012
    Publication date: January 9, 2014
    Applicant: ETABLISSEMENTS CAILLAU
    Inventors: Nicolas Rigollet, Fabrice Prevot
  • Publication number: 20130212842
    Abstract: Disclosed is a clamping collar which includes a belt made up of two belt portions, each of which has a first end provided with a tightening tab and a second end provided with an assembly member. The assembly members are suitable for co-operating to assemble the second ends together in a releasable manner. The collar also includes tightening means suitable for co-operating with the tightening tabs so as to move the tabs relative to each other once the second ends are assembled together, in such a manner as to tighten the collar.
    Type: Application
    Filed: October 28, 2011
    Publication date: August 22, 2013
    Applicant: ETABLISSEMENTS CAILLAU
    Inventors: Nicolas Rigollet, Fabrice Prevot
  • Publication number: 20130160247
    Abstract: The clamping collar comprises a metal belt (10), two tightening lugs (12, 14), and a bridging plate (20) for bridging the gap between the lugs. The belt includes an overlap portion (22) that has its inside face provided with a setback (24) into which a first end (20A) of the plate penetrates during tightening of the collar. The setback is defined by a first joggle (26) having an end wall that forms two surfaces on either side of the longitudinal midline of the belt, which surfaces are disposed substantially symmetrically about said midline, and are inclined both relative to the longitudinal direction and relative to the transverse direction of the belt, and each of which surfaces extends over a substantial fraction of the half-width of the belt.
    Type: Application
    Filed: June 20, 2011
    Publication date: June 27, 2013
    Applicant: ETABLISSEMENTS CAILLAU
    Inventors: Nicolas Rigollet, Fabrice Prevot, Arnault Jacquelin, Eric Mesnard
  • Patent number: 8336172
    Abstract: A clamping collar including: a belt comprising a strip and two free ends, each of said the ends being curved back to form a loop and each loop being defined by an outer belt portion and by an underlying inner belt portion; and a tightening system suitable for bringing the loops closer together and for tightening the belt; and in which each of ends of the belt is curved back towards the inside of the collar, the inner belt portion being extended beyond the loop, under the strip, and the outer belt portion presenting a tightening wall with which the tightening system, comes into engagement.
    Type: Grant
    Filed: June 8, 2007
    Date of Patent: December 25, 2012
    Assignee: Etablissements Caillau
    Inventors: Fabrice Prevot, Jérôme Jaffre, Nicolas Rigollet
  • Patent number: 8136211
    Abstract: A clamping collar comprising: a belt having two free ends, at least one of said free ends being curved back to form a loop, said loop being defined by an outer belt portion and by an underlying inner belt portion; and a tightening system suitable for co-operating with said loop so as to tighten said belt; in which clamping collar said outer belt portion presents a pushed-in portion, set back relative to the outer outline of the loop, which pushed-in portion defines a tightening wall with which the tightening system comes into engagement, and is flanked on either side by respective ones of two edge segments of the outer belt portion.
    Type: Grant
    Filed: June 8, 2007
    Date of Patent: March 20, 2012
    Assignee: Etablissements Caillau
    Inventors: Fabrice Prevot, Jérôme Jaffre, Nicolas Rigollet