Clamping system for connecting together and for pre-fitting a first tube and a second tube
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F16L-023/00
F16L-023/04
F16L-023/08
출원번호
US-0811071
(2011-07-19)
등록번호
US-9016731
(2015-04-28)
우선권정보
FR-10 56175 (2010-07-27)
국제출원번호
PCT/FR2011/051743
(2011-07-19)
§371/§102 date
20130326
(20130326)
국제공개번호
WO2012/013891
(2012-02-02)
발명자
/ 주소
Rigollet, Nicolas
출원인 / 주소
Etablissements Caillau
대리인 / 주소
Hamre, Schumann, Mueller & Larson, P.C.
인용정보
피인용 횟수 :
0인용 특허 :
6
초록▼
The system includes a collar (10) and a washer (28), the collar having a tightenable band (12) suitable for co-operating with bearing surfaces (16, 18) of the interconnected tubes (1, 2) via its inside periphery defining a setback (14). The washer (28) is secured to the collar and the system further
The system includes a collar (10) and a washer (28), the collar having a tightenable band (12) suitable for co-operating with bearing surfaces (16, 18) of the interconnected tubes (1, 2) via its inside periphery defining a setback (14). The washer (28) is secured to the collar and the system further includes first pre-fitter (38) for acting when the collar is in the non-tightened state to secure the collar to the first tube when the bearing surface (16) of the first tube is engaged in the setback (14). The clamping system further includes second pre-fitter (40) for acting, when the collar (10) is secured to the first tube (1) by the first pre-fitter (38), to secure the collar to the second tube (2) when the bearing surface (18) of the second tube (2) is also engaged in the setback (14).
대표청구항▼
1. A clamping system for connecting together a first tube and a second tube, facing ends of the tubes having bearing surfaces that project relative to cylindrical outside surfaces of the tubes, the system comprising: a collar;a washer secured to the collar, the collar having a band suitable for co-o
1. A clamping system for connecting together a first tube and a second tube, facing ends of the tubes having bearing surfaces that project relative to cylindrical outside surfaces of the tubes, the system comprising: a collar;a washer secured to the collar, the collar having a band suitable for co-operating with the bearing surfaces via an inside periphery of the band that defines a setback into which the bearing surfaces can be inserted, the collar having a non-tightened state and a tightened state, the washer being distinct from the band;a first pre-fitting means for acting when the collar is in the non-tightened state to secure the collar to the first tube when the bearing surface of the first tube is engaged in the setback, such that the bearing surface of the first tube is kept apart from the inside periphery of the band; anda second pre-fitting means for acting, when the collar is secured to the first tube by the first pre-fitting means, to secure the collar to the second tube so as to resist a displacement of the second tube in the direction going away from the first tube when the bearing surface of the second tube is also engaged in the setback, such that the bearing surface of the second tube is kept apart from the inside periphery of the band,wherein the first pre-fitting means comprises first deformable pre-fitting tabs suitable for co-operating with the first tube. 2. A clamping system according to claim 1, wherein the second pre-fitting means comprises second deformable pre-fitting tabs suitable for co-operating with the second tube. 3. A clamping system according to claim 2, wherein the second pre-fitting tabs comprise at least one pre-deformed tab that, in axial section, has a joining segment joining to the washer and that extends outwards from the washer, and a securing segment for securing to the second tube and that extends between the joining segment and the free end of the pre-deformed tab while pointing inwards in the direction going towards the free end. 4. A clamping system according to claim 3, wherein the pre-deformed tab further comprises a retaining segment that extends between the securing segment for securing to the second tube and the free end of the pre-deformed tab, while pointing outwards in the direction going towards the free end, the retaining segment being suitable for co-operating with the band of the collar so as to retain the pre-deformed tab relative to the band. 5. A clamping system according to claim 3, wherein the pre-deformed tab is provided with a hook suitable for hooking onto a vertex portion of the collar band. 6. A clamping system according to claim 1, wherein the washer is secured to the collar by deformable fastening tabs that are integral with the washer. 7. A clamping system according to claim 6, wherein the first pre-fitting means is integral with the washer; the clamping system further comprises an additional washer, secured to the collar; andthe second pre-fitting means is integral with the additional washer. 8. A clamping system according to claim 6, wherein the first pre-fitting means and the second pre-fitting means are integral with the washer. 9. A clamping system according to claim 1, wherein the washer is secured to the collar by fastening tabs that are situated on a first side of a surface of the washer; the first pre-fitting means comprises first pre-fitting tabs that are also situated on the first side of the washer; andthe second pre-fitting means comprises second pre-fitting tabs that are situated on a second side of the washer that is opposite from the first side. 10. A clafnping system according to claim 1, wherein the second pre-fitting means comprises at least one tab that is of substantially constant width. 11. A clamping system according to claim 1, wherein the second pre-fitting means comprises at least one tab that is of width that decreases in the direction going towards its free end. 12. A clamping system according to claim 1, wherein the washer includes an annular sealing portion suitable for being sandwiched between first and second sealing surfaces belonging respectively to the first tube and to the second tube, when the tubes are clamped by means of the clamping system. 13. A clamping system according to claim 1, wherein the washer has a substantially frustoconical portion. 14. A clamping system according to claim 13, wherein the washer has an inside portion that extends substantially axially, and the inside portion extends from an inside edge of the substantially frustoconical portion by forming a turned-back segment. 15. A clamping system according to claim 1, wherein the washer has an inside portion that extends substantially axially. 16. A clamping system for connecting together a first tube and a second tube, facing ends of the tubes having bearing surfaces that project relative to cylindrical outside surfaces of the tubes, comprising: a collar;a washer secured to the collar, the collar having a band suitable for co-operating with the bearing surfaces via an inside periphery of the band that defines a setback into which the bearing surfaces can be inserted, the collar having a non-tightened state and a tightened state, the washer being distinct from the band;first deformable pre-fitting tabs for securing the collar to the first tube when the bearing surface of the first tube is engaged in the setback while the collar is in the non-tightened state, such that the bearing surface of the first tube is kept apart from the inside periphery of the band; andsecond deformable pre-fitting tabs for acting, when the collar is in the non-tightened state and is secured to the first tube by the first pre-fitting tabs, to secure the collar to the second tube so as to resist a displacement of the second tube in the direction going away from the first tube when the bearing surface of the second tube is also engaged in the setback, such that the bearing surface of the second tube is kept apart from the inside periphery of the band. 17. A clamping system according to claim 16, wherein the washer is secured to the collar by deformable fastening tabs that are integral with the washer. 18. A clamping system according to claim 16, wherein at least one set of tabs among the first pre-fitting tabs and the second pre-fitting tabs are integral with the washer. 19. A clamping system according to claim 16, wherein the washer is secured to the collar by deformable fastening tabs that are integral with the washer, the first pre-fitting tabs are integral with the washer, and the clamping system further comprises an additional washer, secured to the collar, the second pre-fitting tabs being integral with the additional washer.
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이 특허에 인용된 특허 (6)
Potts, Michael R.; Ignaczak, Brian T.; Amedure, Michael E., Clamp for joining tubular bodies.
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