| 摘要 |
A device for coupling or decoupling pipe sections including two hollow cylindrical members each having a tapered inner surface portion and adapted to receive a pipe section. Several metallic balls are disposed between the tapered inner surface portion and a portion of the outer surface of the pipe section for acting as wedge means to prevent separation of the cylindrical member and the pipe section. Sealing means are located between the cylindrical member and its associated pipe section for providing an air-tight seal between the two. Fastening means are disposed between the hollow cylindrical members for moving the hollow members toward each other and for urging the sealing means against the inner surface of the hollow cylindrical members and the outer surface of the pipe sections to be joined.
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