Fluid handling – With repair – tapping – assembly – or disassembly means – Tapping a pipe – keg – or apertured tank under pressure
Patent
1993-05-19
1995-07-25
Walton, George L.
Fluid handling
With repair, tapping, assembly, or disassembly means
Tapping a pipe, keg, or apertured tank under pressure
138 94, 138 97, 2512495, 251266, F16K 4300, F16L 4106, F16L 5510
Patent
active
054353408
ABSTRACT:
A pipe coupling apparatus includes a coupling case for surrounding an outer periphery of an existing pipe in a sealed state. The coupling case defines a pipe coupling opening for coupling a new pipe to the coupling case, and an executing opening for use in cutting a branching opening in the existing pipe. A lid is mounted on the coupling case for sealing the executing opening. The branching opening is formed in a way to prevent a fluid from flowing out of the executing opening. The coupling case houses a first valve operable from outside the coupling case to open and close the coupling opening, and a second valve also operable from outside the coupling case to move into the existing pipe through the branching opening for closing one of passages defined by the existing pipe and communicating with the branching opening.
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patent: 5054512 (1991-10-01), Jiles
Shimizu Haruhiko
Tabuchi Masashi
Walton George L.
Yano Giken Co., Ltd.
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