Fluid handling – Processes – With control of flow by a condition or characteristic of a...
Patent
1994-12-23
1996-01-16
Nilson, Robert G.
Fluid handling
Processes
With control of flow by a condition or characteristic of a...
137504, 166240, 175 61, E21B 3410
Patent
active
054839874
ABSTRACT:
The present invention relates to a device for actuating equipment from a distance through a flow variation of a fluid in a pipe. The device and method of this invention are suited for incorporation into a drill string.
REFERENCES:
patent: 3024845 (1962-03-01), Conrad
Amaudric du Chaffaut Benoit
Boulet Jean
Institut Francais du Pe'trole
Nilson Robert G.
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