Interrelated power delivery controls – including engine control – Clutch control – Condition responsive control
Reexamination Certificate
2006-04-18
2006-04-18
Pang, Roger (Department: 3681)
Interrelated power delivery controls, including engine control
Clutch control
Condition responsive control
C477S084000, C180S053600
Reexamination Certificate
active
07029422
ABSTRACT:
This invention will therefore provide a tool to assist the rig operator in perfecting his/her rig operation skills. Disclosed herein is an apparatus and method for minimizing slippage on the drum clutch of a well service rig. A detector senses the motion of the compound when the clutch is initially engaged. If the momentum is above an acceptable level, an alarm sounds, notifying the operator to be smoother with the clutch. A tracking mechanism is disclosed so that a rig supervisor or safety person can critique the operator on the smoothness of the rig operation.
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International Search Report, mailed Jul. 14, 2004. PCT Application Serial No. PCT/US2004/004408, filed Feb. 13, 2004.
Newman Frederic M.
Northcutt Kevin
Key Energy Services, Inc.
King & Spalding LLP
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