Safemode operating system for a drilling or service rig

Details Safemode operating system for a drilling or service rig Safemode operating system for a drilling or service rig

2006-10-03

2006-10-03

Bagnell, David (Department: 3672)

Boring or penetrating the earth

Automatic control

Of advance or applied tool weight

C175S024000, C175S040000, C254S274000

Reexamination Certificate

active

07114577

ABSTRACT:
Disclosed herein is a system designed to manage or slow the block travel speed down to safe speeds when the rig is operating in a light load/high speed condition. The system monitors and controls engine torque and horsepower, providing the minimum amount of each necessary to pull the light load out of the hold without providing sufficient excess torque to pull the load through a snag.

REFERENCES:
patent: 4434971 (1984-03-01), Cordrey
patent: 6029951 (2000-02-01), Guggari
patent: 6155357 (2000-12-01), King et al.
patent: 6192998 (2001-02-01), Pinckard
patent: 6233498 (2001-05-01), King et al.
patent: 6293356 (2001-09-01), King et al.
patent: 6994172 (2006-02-01), Ray
patent: 7029422 (2006-04-01), Newman et al.
patent: 7044239 (2006-05-01), Pinckard et al.

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