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
2007-06-19
2007-06-19
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
C254S379000
Reexamination Certificate
active
10506032
ABSTRACT:
In the drawworks for lowering and withdrawing a load, in particular a drilling or a drilling plugging device, in particular for use on floating drilling platforms, which drawworks has at least one brake arrangement for braking and holding the load, an emergency brake device is provided for producing an additional braking force.
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Heinrichs Albrecht
Heinrichs Peter
Kueffner Friedrich
Marcelo Emmanuel M
Wirth Maschinen- und Bohrgeräte-Fabrik GmbH
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