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Apparatus for the leakage-free connection of cavities in tubes and vessels

  • US 4,330,010 A
  • Filed: 02/25/1980
  • Issued: 05/18/1982
  • Est. Priority Date: 02/26/1979
  • Status: Expired due to Term
First Claim
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1. In a coupling device for establishing a leakage-free connection between the interiors of two enclosures to permit the passage of fluid therebetween, which device includes two coupling tubes each arranged to be in communication with the interior of a respective enclosure and each defining a controllable closing member formed to present a closeable flow passage in its respective tube, the tubes being engageable against one another in a position to establish a leakage-free connection between their flow passages, and two operating members each operatively associated with a respective closing member and movable relative to its associated closing member between a position in which the associated flow passage is closed and a position in which the associated flow passage is open, the improvement wherein one of said operating members is provided with a coupling projection and the other of said operating members is provided with a recess formed to mate with said projection for causing said operating members to move in unison between said positions when said tubes are in the position to establish a leakage-free connection between their flow passages, and said device further comprises:

  • two cylindrical housings;

    means supporting a respective coupling tube and operating member in each said housing, each said operating member being disposed concentrically about its associated closing member and being constructed to undergo rotational movement between its positions;

    bayonet closure means for connecting said housings together and composed of a groove and a pin each provided on a respective one of said housings in such a manner that engagement of said pin in said groove places said coupling tubes in engagement against one another;

    a manual actuating member engageable with one of said operating members when said housings are connected together by said closure means for moving said operating members between their said positions; and

    wherein one of said housings is provided with a groove through which said actuating member extends to a location outside of said housings and the other of said housings presents an abutment surface arranged such that when said housings are connected together and said operating members are in said position for opening said flow passages, engagement between said actuating member and said abutment prevents disconnection of said housings.

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