Fluid handling – With repair – tapping – assembly – or disassembly means – Assembling – disassembling – or removing cartridge type valve
Patent
1989-02-03
1989-11-14
Walton, George L.
Fluid handling
With repair, tapping, assembly, or disassembly means
Assembling, disassembling, or removing cartridge type valve
291571R, 2940208, 116277, 116DIG21, 137318, 137554, 138 89, 138 94, 403118, 408 835, F16K 4300, F16L 5512
Patent
active
048800287
ABSTRACT:
For use in a hot tapping system having a plug receiving flange providing communication into the interior of a pipeline, a completion machine for attachment to the flange providing means to install or retrieve a plug from within the flange, the machine being formed of an elongated cylindrical housing having a flange portion to removably sealably engage the plug receiving flange and the housing forming a hydraulic cylinder, an elongated tubular control bar reciprocally and non-rotatably received within the housing, a piston within the cylinder secured to the control bar by which the control bar is hydraulically displaced, and a rotatable retention rod telescopically received within the control bar and having a threaded end to attach to a plug, the retention rod being secured to a plug for placement of the plug into a flange or the removal therefrom.
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Osburn Coy D.
Sullivan James B.
TDW Delaware Inc.
Walton George L.
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