EP0611312A1 - Ameliorations concernant les ensembles de raccordement - Google Patents

Ameliorations concernant les ensembles de raccordement

Info

Publication number
EP0611312A1
EP0611312A1 EP92922285A EP92922285A EP0611312A1 EP 0611312 A1 EP0611312 A1 EP 0611312A1 EP 92922285 A EP92922285 A EP 92922285A EP 92922285 A EP92922285 A EP 92922285A EP 0611312 A1 EP0611312 A1 EP 0611312A1
Authority
EP
European Patent Office
Prior art keywords
coupling
coupling member
assembly according
members
sealing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP92922285A
Other languages
German (de)
English (en)
Inventor
Brian Kevin Roderick 3 Tweedsmuir Close Clarke
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Spembly Cryosurgery Ltd
Original Assignee
Spembly Cryosurgery Ltd
Cryogenic Technology Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Spembly Cryosurgery Ltd, Cryogenic Technology Ltd filed Critical Spembly Cryosurgery Ltd
Publication of EP0611312A1 publication Critical patent/EP0611312A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L19/00—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on, or into, one of the joint parts
    • F16L19/02—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member
    • F16L19/0212—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member using specially adapted sealing means
    • F16L19/0218—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member using specially adapted sealing means comprising only sealing rings

Definitions

  • This invention relates to coupling assemblies.
  • the invention relates to coupling assemblies for cryogen supply lines such as are associated with cryosurgical apparatus-
  • a coupling assembly for a cryogen supply line comprising first and second coupling members each defining a passageway for the cryogen, the first coupling member being adapted to receive the second coupling member such that the respective passageways are in register, and securing means to secure the first coupling member to the second coupling member.
  • the coupling assembly comprises seal- ing means to seal the assembly and to prevent leakage therefrom.
  • the sealing means may comprise first and second sealing members which, when the first and second coupling members are secured together, define a closed chamber therebetween. Thus, if any cryogen leaks past the first sealing member, it passes into the chamber where it evaporates thereby increasing the pressure in the chamber to prevent further leakage.
  • the first and second coupling members have corresponding parallel portions and tapered portions such that the tapered portion on the first coupling member receives the tapered portion on the second coupling member.
  • the first sealing member may comprise a first rubber ring on the first coupling member and the second sealing member may comprise a second rubber ring on the second coupling member.
  • the first sealing member may be provided on the parallel portion of the first coupling member and the second sealing member may be provided on the tapered portion of the second coupling member.
  • the first coupling member comprises a female member and the second coupling member comprises a male member, the female and male members being adapted to engage each other matingly.
  • the securing means may comprise a screw threaded member on the second coupling member, which may be rotatable independently of the second coupling member.
  • the securing means may further comprise corresponding screw threads on the first coupling member adapted to engage the threads on the screw threaded member.
  • a first flange may be provided on the first coupling member, and a second flange may be provided on the screw threaded member.
  • the flanges are adapted to engage each other when the screw threaded member is fully engaged with the screw threads on the first coupling member.
  • Fig. 1 is a schematic sectional representation of a coupling assembly for a cryogen supply line
  • Fig. 2 is a drawing similar to Fig. 1 but with the first and second coupling members coupled together.
  • the drawings show a coupling assembly generally designated 10 which comprises a female member 12 and a male member 14.
  • the female member 12 is adapted to receive the male member 14.
  • a passageway 16 for the cryogen extends through the female member and a similar passageway 18 extends through the male member.
  • the inner wall of the female member 12 comprises a parallel portion 20 and a tapered portion 22.
  • a seal in the form of a first rubber ring 24 is provided on the parallel portion 20.
  • the outer wall of the male member 14 comprises a parallel portion 26 and a tapered portion 28.
  • the tapered portion 22 on the female member and the tapered portion 28 on the male member correspond with each other in shape.
  • a seal in the form of a second rubber ring 30 is provided on the tapered' portion 28 of the male member 14.
  • a chamber 32 is defined between the first and second rubber rings and between the inner wall of the female member 12 and the outer wall of the male member 14. (See Fig. 2).
  • the assembly also comprises a screw threaded member 40 which has external screw threads 41 and, at one end thereof, a flange 42.
  • the female member 12 is provided with internal screw threads 44 at an end region thereof, and a flange 46.
  • the screw threaded member 40 can be rotated independently of the male member 14. When the male member 14 has been received in the female member 12, the screw threaded member 40 can be threadably engaged with the screw threads 44 on the female member 12 (see Fig. 2). When the screw threaded member 40 is fully engaged with the screw threads 44 on the female member 12, the flanges 42, 46 engage each other.
  • a cryogen supply line 50 (to supply, for example, liquid nitrogen) is connected to the female member 12 and a further cryogen supply line 52 is connected to the male member 14. In the embodiment shown, the cryogen supply flows in the direction of the arrow indicated at A.
  • the flange on the female member could be omitted and the flange on the male member could simply engage the end of the female member.
  • the male and female members could be swapped round such that the cryogen flows in the direction opposite to that of arrow A.
  • the coupling members may have a different shape and configuration to that shown, or the sealing or securing means may be changed within the scope of the invention.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Joints With Pressure Members (AREA)
  • Gasket Seals (AREA)
  • Thermotherapy And Cooling Therapy Devices (AREA)
  • Surgical Instruments (AREA)

Abstract

Ensemble de raccordement destiné plus particulièrement à une ligne d'alimentation en cryogène pour un appareil cryochirurgical, comprenant des éléments de raccordement mâle (14) et femelle (12). Un système d'étanchéité de l'ensemble est constitué d'un premier joint torique (24) en caoutchouc situé de manière interne sur l'élément femelle et d'un deuxième joint torique (30) en caoutchouc situé à l'extérieur de l'élément mâle. Lorsqu'on introduit l'élément mâle dans l'élément femelle, les premier et deuxième éléments de raccordement définissent une chambre fermée (32). Toute fuite de cryogène se produit dans la chambre et par conséquent la pression interne de la chambre augmente et cela tend à éviter d'autres fuites. Les éléments de raccordement sont fixés ensemble au moyen de parties filetées (41, 44) correspondantes.
EP92922285A 1991-11-05 1992-11-03 Ameliorations concernant les ensembles de raccordement Withdrawn EP0611312A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB9123412 1991-11-05
GB919123412A GB9123412D0 (en) 1991-11-05 1991-11-05 Improvements in or relating to coupling assemblies
PCT/GB1992/002029 WO1993008870A1 (fr) 1991-11-05 1992-11-03 Ameliorations concernant les ensembles de raccordement

Publications (1)

Publication Number Publication Date
EP0611312A1 true EP0611312A1 (fr) 1994-08-24

Family

ID=10704051

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92922285A Withdrawn EP0611312A1 (fr) 1991-11-05 1992-11-03 Ameliorations concernant les ensembles de raccordement

Country Status (4)

Country Link
EP (1) EP0611312A1 (fr)
JP (1) JPH07503625A (fr)
GB (1) GB9123412D0 (fr)
WO (1) WO1993008870A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4322868A1 (de) * 1993-07-09 1995-01-12 Sterimed Gmbh Bajonett-Schlauchverbinder
DE29503750U1 (de) * 1995-03-04 1995-04-27 B. Braun Melsungen Ag, 34212 Melsungen Fixiervorrichtung
DE19637266C1 (de) * 1996-09-13 1997-12-04 Wolf Gmbh Richard Kupplung zur Verbindung eines Schlauches mit einem medizinischen Instrument, Gerät oder anderem Schlauch
PL2630983T3 (pl) * 2012-02-22 2017-04-28 Erbe Elektromedizin Gmbh Złącze płynowe z wieloma promieniowo ruchomymi elementami wtykowymi

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US626932A (en) * 1899-06-13 Pipe-joint and hose-coupling
JPS60129941U (ja) * 1984-02-09 1985-08-31 テルモ株式会社 医療用器具
SE446656B (sv) * 1985-01-08 1986-09-29 Astra Meditec Ab Ventilforsedd kopplingsanordning
US4836584A (en) * 1988-07-18 1989-06-06 General Motors Corporation Serviceable threaded conduit coupling
US5118141A (en) * 1989-12-07 1992-06-02 Sanko Kogyo Kabushiki Kaisha Union joint

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9308870A1 *

Also Published As

Publication number Publication date
GB9123412D0 (en) 1991-12-18
JPH07503625A (ja) 1995-04-20
WO1993008870A1 (fr) 1993-05-13

Similar Documents

Publication Publication Date Title
US5299843A (en) Anti-twist coupling assembly
KR0145297B1 (ko) 유체도관 커플링 장치
US7527306B2 (en) Pipe coupling
US6145322A (en) Cryogenic coupler
US4630635A (en) Flow device with resilient elastomeric sleeve
JPH07158783A (ja) 締め付けフランジ型管取付け組立体
JPS6095296A (ja) 異径管継手及びそれを有するクランプ装置
UA66845C2 (uk) Різьбове з'єднання металевих труб для корозійного текучого середовища
US269626A (en) brauee
US5456502A (en) Fittings for use with fin strengthened double wall pipeline systems
US5374087A (en) Tapping sleeve
US5503438A (en) Flared tube coupling having a disposable sealing boot
FR2655125A1 (fr) Raccord de canalisation equipe d'un dispositif de drainage de fuites.
US4165106A (en) Hose or pipe coupling
US4437690A (en) High pressure hose swivel connector
US4030778A (en) Leakproof coupling means for garden hoses and the like
US20040239117A1 (en) Coupling for pipe including an inclined flange
US5524940A (en) Pipe coupler device
EP0611312A1 (fr) Ameliorations concernant les ensembles de raccordement
US20040150226A1 (en) Arrangement for assembly of pipe flanges, comprising spacers positioned between the pipe flanges
HU218236B (hu) Csőkötő idom
WO1983000543A1 (fr) Assemblage d'etancheite dans un couplage de fluide
US4103936A (en) Nozzle spout coupling
CN109563953A (zh) 管道接头装置的保持环
US4170375A (en) Pipe joint

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19940512

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL SE

17Q First examination report despatched

Effective date: 19950927

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: SPEMBLY CRYOSURGERY LIMITED

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19960508