Draw works
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United States of America Patent
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-
Jun 19, 2007
Grant Date -
Jun 23, 2005
app pub date -
Feb 19, 2003
filing date -
Feb 27, 2002
priority date (Note) -
In Force
status (Latency Note)
Importance
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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