B - Operations – Transporting – 21 – D
Patent
B - Operations, Transporting
21
D
B21D 28/28 (2006.01)
Patent
CA 2629717
The present invention provides a hot tap machine having independent speed drives for the center drill and the holesaw that can be remotely operated. The hot tap machine of the present invention also has improved vibratory damping and coupon stability and retention. During operation, the machine cartridge holding the machine internal assemblies of the hot tap machine of the present invention is, except for its controls and external support systems, entirely contained within its pressure containment housing which is sealingly attached to the hot tap fitting on the pipe. An advantage in the operation of the present invention is the independence of the center drilling operation and the pipe coupon cutting operation.
La présente invention concerne un dispositif de prise directe ayant des entraînements à vitesse indépendante pour le foret à centrer et la scie cylindrique pouvant être actionnés à distance. Le dispositif de prise directe présente également des améliorations en termes d~amortissement des vibrations, de stabilité des sections et de rétention. Pendant le fonctionnement, la cartouche renfermant les assemblages internes du dispositif est, à l~exception de ses systèmes de commande et de support externe, entièrement contenue dans son carter de confinement de pression qui est fixé de manière étanche au raccord de prise directe sur le tuyau. Un avantage du fonctionnement de ce dispositif réside dans l~indépendance du perçage des centres et de la découpe des sections de tuyau.
Kirby Eades Gale Baker
Russell Larry Rayner
LandOfFree
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