System for assuring engagement of a hydromatic brake on a...

Details System for assuring engagement of a hydromatic brake on a... System for assuring engagement of a hydromatic brake on a...

2007-06-05

2007-06-05

Marcelo, Emmanuel M (Department: 3654)

Implements or apparatus for applying pushing or pulling force

Apparatus for hauling or hoisting load, including driven...

Device includes rotatably driven, cable contacting drum

Reexamination Certificate

active

10925813

ABSTRACT:
The present invention provides an automatic system for engaging the hydromatic brake on a drilling rig or a service rig. This system monitors both the hook load and traveling block velocity, and uses an electrical solenoid to activates the hydromatic when either the hook load or rotating drum velocity exceeds a maximum value, requiring hydromatic brake engagement.

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