Automated drill stem guide and method

Details Automated drill stem guide and method Automated drill stem guide and method

1996-06-26

1998-12-08

Howell, Daniel W.

Cutting by use of rotating axially moving tool

Processes

Bit detachable

266 45, 266271, 408 80, B23B 3500, C21B 300

Patent

active

058460349

ABSTRACT:
In a petroleum coking drum, a drill stem guide latches internally to a structure adjacent the drum opening, rather than externally to a flange about the drum opening. In preferred embodiments, the latching mechanism is spring loaded, and operated automatically as a function of raising and lowering the guide.

REFERENCES:
patent: 2705630 (1955-04-01), Taddeo
patent: 3700347 (1972-10-01), Nanne et al.
patent: 4201502 (1980-05-01), Skendrovic
patent: 5022799 (1991-06-01), Torres et al.

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