TOMAHAWK DOWNHOLE LLC

Patent application number	Title	Published
TOMAHAWK DOWNHOLE LLC Patent applications
20100190561	Drilling motor coupling - A flexible drilling motor drive shaft coupling has two torque transmitting portions spaced apart axially, preferably, by a compression unit that is secured to one portion by a tension link and entrapped within the other portion. The tension link is, preferably, a cap screw extending along the axis of rotation of the coupling.	07-29-2010
20100187013	Motor shaft security apparatus - An interference structure is provided in a drilling motor to engage the motor drive shaft assembly if the thrust bearings fail and the drive shaft moves axially a preselected amount. The interference structure is protected from wear common to drilling motor use. The structure assures the recovery of all drilling motor parts if all thrust bearings fail.	07-29-2010