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US 6,598,501 B1Granted
Apparatus and a method for facilitating the connection of pipes
AssigneeWeatherford/Lamb, Inc.
InventorsJoerg Eric Schulze-Beckinghausen, Bernd-Georg Pietras
Life of this patent
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Abstract
An apparatus for facilitating the connection of pipes which apparatus comprises a rotary (1) and jaws (20, 21, 22), characterised in that all of said jaws (20, 21, 22) are active and are actuable by pressurised fluid.
Claims21
An apparatus for facilitating the connection of pipes which apparatus comprises:
- a rotary having an open, radially extending passageway to facilitate the passage of a pipe into the centre of said rotary;
- and
- a set of active jaws, characterized in that said jaws are actuable by a single pressurization step, and by a device to help ensure that said jaws move in unison.
An apparatus for facilitating the connection of two pipes, comprising:
- a rotary having a radially extending passageway to facilitate the entry of a pipe;
- at least two jaws disposed in the rotary for contacting the pipe, wherein each of the jaws contacting the pipe are radially movable toward the center of said rotary;
- a device for moving the at least two jaws in unison;
- and
- a rotor for each of the at least two jaws and a common shaft to which said rotors are fixed.
2 more elements
A method for connecting two tubulars, comprising:
- placing a first tubular in an opening of a rotary, the rotary having at least two jaws for contacting the first tubular;
- actuating the at least two jaws with a single pressurization step;
- contacting the first tubular with the at least two jaws, wherein each of the jaws contacting the first tubular is radially movable;
- rotating the first tubular to a predetermined torque;
- and
- disengaging the at least two jaws.
3 more elements
An apparatus for facilitating the connection of pipes which apparatus comprises:
- a rotary having an open, radially extending passageway to facilitate the passage of a pipe into the centre of said rotary;
- and
- a set of active jaws, characterized in that said jaws are actuable by a single pressurization step, and by a device to help ensure that said jaws move in unison, wherein said device comprises a rotor for each of said jaws and a common shaft to which said rotors are fixed.
Dependencies are inferred from the claim text.