Tool coupler with sliding coupling members for top drive
AssigneeWeatherford Technology Holdings, LLC
InventorsMichael HENKE, Michael KRATZERT, Thomas VEIT, Kevin WOOD
Life of this patent
Estimating the term…
Abstract
A drive unit of a top drive system includes a drive stem having a plurality of ports from an exterior thereof to an interior thereof. A plurality of sliding coupling members is disposed in the ports. A coupling collar encircles the drive stem and has actuation surfaces and recessed surfaces on an interior thereof, wherein the recessed surfaces align with the ports when the coupling collar is in a first position, and the actuation surfaces align with the ports when the coupling collar is in a second position.
Claims20
A drive unit of a top drive system comprising:
- a drive stem having a plurality of ports from an exterior thereof to an interior thereof;
- a plurality of sliding coupling members disposed in the ports;
- and
- a coupling collar encircling the drive stem and having actuation surfaces and recessed surfaces on an interior thereof, wherein the recessed surfaces align with the ports when the coupling collar is in a first position, and the actuation surfaces align with the ports when the coupling collar is in a second position.
A drive unit of a top drive system comprising:
- a drive stem having a coupling recess;
- a plurality of ports in the drive stem connected to the coupling recess;
- a plurality of sliding coupling members movable between a retracted position and an extended position in the ports;
- and
- a plurality of transmission units operationally coupled to the sliding coupling members to move the sliding coupling members between the retracted position and the extended position.
A top drive system comprising:
- a drive unit comprising:
- a drive stem;
- and
- a torque profile on the drive stem;
- and
- a tool adapter comprising:
- a tool stem;
- and
- a torque profile on the tool stem and engagable with the torque profile of the drive stem.
Dependencies are inferred from the claim text.