Abstract: A locking clutch to selectively transmit torque from a stator of a downhole tool to a rotor of the downhole tool includes at least one locking pawl disposed upon the rotor, wherein the at least one locking pawl comprises a load path, at least one pivot axis, and a mass center, wherein the at least one locking pawl is biased into an engaged position by a biasing mechanism, wherein the at least one locking pawl transmits force from the stator to the rotor along the load path when in the engaged position, and wherein centrifugal force urges the at least one locking pawl into a disengaged position when the rotor is rotated above a disengagement speed.

Abstract: A locking clutch to selectively transmit torque from a stator of a downhole tool to a rotor of the downhole tool includes at least one locking pawl disposed upon the rotor, wherein the at least one locking pawl comprises a load path, at least one pivot axis, and a mass center, wherein the at least one locking pawl is biased into an engaged position by a biasing mechanism, wherein the at least one locking pawl transmits force from the stator to the rotor along the load path when in the engaged position, and wherein centrifugal force urges the at least one locking pawl into a disengaged position when the rotor is rotated above a disengagement speed.

Abstract: A lock system is provided including a plurality of access point controls and at least one access memory device. The access memory device is configured to communicate information between access point controls.

Abstract: A locking clutch to selectively transmit torque from a stator of a downhole tool to a rotor of the downhole tool includes at least one locking pawl radially between the rotor and the stator and configured to engage at least one recess formed in an outer periphery of the rotor, and a biasing mechanism configured to bias the at least one locking pawl into an engaged position. The at least one locking pawl includes a load path, two pivot axes, and a mass center. The at least one locking pawl transmits force from the stator to the rotor along the load path when in the engaged position, and centrifugal force urges the at least one locking pawl into a disengaged position when the rotor is rotated about one of the two pivot axes above a disengagement speed.

Abstract: A lock system is provided including a plurality of access point controls and at least one access memory device. The access memory device is configured to communicate information between access point controls.

Abstract: A lock system is provided including a plurality of locksets and at least one token. The token is configured to communicate information between locksets.

Abstract: A locking clutch to selectively transmit torque from a stator of a downhole tool to a rotor of the downhole tool includes at least one locking pawl disposed upon the rotor, wherein the at least one locking pawl comprises a load path, at least one pivot axis, and a mass center, wherein the at least one locking pawl is biased into an engaged position by a biasing mechanism, wherein the at least one locking pawl transmits force from the stator to the rotor along the load path when in the engaged position, and wherein centrifugal force urges the at least one locking pawl into a disengaged position when the rotor is rotated above a disengagement speed.

Abstract: A turbodrill includes a housing having a central axis, a motor assembly disposed within the housing and comprising non-rotating stator vanes fixed to the housing, and a rotor assembly having rotating vanes fixed to a shaft of the turbodrill, a locking clutch configured to selectively transmit torque from the turbine housing to the rotor by preventing rotation of the housing and the rotor relative to each, and a catch device configured to retain a severed lower section of the shaft with the turbodrill.

Abstract: A locking clutch to selectively transmit torque from a stator of a downhole tool to a rotor of the downhole tool includes at least one locking pawl disposed upon the rotor. The at least one locking pawl comprises a load path, a pivot axis, and a mass center, and is biased into an engaged position by a biasing mechanism. The at least one locking pawl transmits force from the stator to the rotor along the load path when in the engaged position, and centrifugal force urges the at least one locking pawl into a disengaged position when the rotor is rotated above a disengagement speed.

Abstract: A drilling motor includes an upper end connection adapted to connect to a drill string, and a lower end connection adapted to connect to a drill bit, a thrust bearing assembly having a plurality of stages assembled in a stack, each stage including at least one rotating inner bearing subassembly configured to contact at least one corresponding stationary outer bearing subassembly, wherein axial loads among the plurality of stages are substantially equal under normal operating conditions.

Abstract: A locking clutch to selectively transmit torque from a stator of a downhole tool to a rotor of the downhole tool includes at least one locking pawl disposed upon the rotor, wherein the at least one locking pawl comprises a load path, a pivot axis, and a mass center, wherein the at least one locking pawl is biased into an engaged position by a biasing mechanism, wherein the at least one locking pawl transmits force from the stator to the rotor along the load path when in the engaged position, and wherein centrifugal force urges the at least one locking pawl into a disengaged position when the rotor is rotated above a disengagement speed.

Abstract: A lock system is provided including a lock core and a token. The lock core comprises a core body, a lock actuator coupled to the core body for rotation about an axis, a blocking body, and a solenoid. The solenoid has a shaft that is movable between a first position in which the blocking body is locked to prevent rotation of the lock actuator about the axis and a second position in which the blocking body is unlocked to allow rotation of the lock actuator about the axis. The token is couplable mechanically to the lock actuator. The solenoid moves the shaft from the first position to the second position so that the blocking body is unlocked if the token has a valid access code.

Abstract: A lock system comprises a lock core and a token. The lock core comprises a core body, a lock actuator coupled to the core body for rotation about an axis, a blocker movable perpendicular with the axis, and an electromagnetic actuator. The electromagnetic actuator has a shaft that is movable parallel with the axis between a first position in which the blocker is locked to prevent rotation of the lock actuator about the axis and a second position in which the blocker is unlocked to allow rotation of the lock actuator about the axis. The token is couplable mechanically to the lock actuator. The electromagnetic actuator moves the shaft parallel with the axis from the first position to the second position so that the blocker is unlocked if the token has a valid access code.

Abstract: A lock system comprises a lock core and a token. The lock core comprises a core body, a lock actuator coupled to the core body for rotation about an axis, a blocker movable perpendicular with the axis, and an electromagnetic actuator. The electromagnetic actuator has a shaft that is movable parallel with the axis between a first position in which the blocker is locked to prevent rotation of the lock actuator about the axis and a second position in which the blocker is unlocked to allow rotation of the lock actuator about the axis. The token is couplable mechanically to the lock actuator. The electromagnetic actuator moves the shaft parallel with the axis from the first position to the second position so that the blocker is unlocked if the token has a valid access code.

Abstract: A lock system comprises a lock core and a token having an access code. The lock core comprises a core body, a lock actuator coupled to the core body for rotation about an axis, a blocker movable between a locking position in which the lock actuator is prevented from rotating about the axis and a releasing position in which the lock actuator is permitted to rotate about the axis, an electric circuit having a token reader, and an electromagnetic actuator having a shaft that is movable parallel with the axis. The token is couplable mechanically to the lock actuator. The electric circuit signals the electromagnetic actuator to move the shaft parallel with the axis so that the blocker is movable from the locking position to the releasing position if the access code read by the token reader matches a valid access code.

Abstract: A lock core for use with a token having an access code and a blade is provided. The lock core includes a core body, a lock actuator coupled to the core body for movement, a token communicator configured to read the access code when the blade is inserted into a passageway of the lock actuator, at least one movable tumbler element, a movable blocker, a biasing member situated between the at least one tumbler element and the blocker, and an electromagnetic actuator coupled to the core body and coupled to the token communicator. Insertion of the token in the passageway moves the at least one tumbler element to store energy in the biasing member. If the token communicator reads the access code after insertion of the token in the passageway, the electromagnetic actuator moves to unlock the blocker and the biasing member releases energy to move the blocker.