The Charles Machine Works, Inc.

David R Payne

Kelvin P Self

Floyd R Gunsaulis

Cody L Sewell

Geoff D Koch

Lee Widener

Gerald A Stangl

David A Rorabaugh

H Stanley Mullins

J Kevin Wilda

Kevin Smith

Arthur D Deken

James E Franklin

Frank S Nickel

Darrel W Sparks

Richard W McEwen

Michael L Anderson

Ronald A Frazier

A horizontal directional drilling system is used to drive operation of a guidable reamer assembly connected to a drill string. The guidable reamer assembly preferably has a cutting member with a central longitudinal axis and a support member also having a central longitudinal axis. The longitudinal axes of the cutting member and the support member are collinear when the reamer assembly is in the non-steering position and laterally displaced when in the steering position. The assembly and method of this invention provide for increased control of reaming operations and product pipe placement.

Directional reaming system

An apparatus is provided for maintaining control of a machine which produces thrust, rotation or other outputs in response to input signals. The apparatus has two distinct parts, namely the operator input portion and the output portion. The operator input portion consists of the primary thrust, rotation and other output control, and the input signal generation, signal maintenance and signal resume control. Through these controls, the operator enters the desired operation at conditions and levels for rotation, thrust, and other input signals. The output portion consists of an information processing and control portion and the power units for rotation, thrust and other outputs generated from the machine. The information processing and control system interprets all of the desired operational conditions and levels from the input portion and sends commands to the thrust, rotation and other power units to produce the desired outputs in response to the input signals.

Apparatus and method for maintaining control of a drilling machine

A method and apparatus for remotely controlling a machine. A remote operator controls a tracking device including a signal system for selectively emitting a remote enable signal. The remote enable signal is relayed to a control system for the machine. The control system is proximate to the machine and is adapted to enable at least one action of the machine upon detecting the remote enable signal. The machine is also adapted to disable the same action of the drilling machine upon detecting an absence of the remote enable signal for a predetermined number of intervals, each interval being of a preselected duration.

Remote control for a drilling machine

A coupling assembly to interconnect an inner member and an outer member of a dual member drill string in torque transmitting engagement is disclosed. The coupling assembly is adapted to transmit torque input from both members to a downhole tool. In one embodiment, the coupling assembly comprises a connector sub that fixedly and non-fixedly couples both members. In another embodiment, the coupling assembly comprises a clutch mechanism to interconnect both members when the rotational speed of the outer member exceeds the rotational speed of the inner member. In another embodiment, the coupling assembly comprises a mechanism to couple both members by axial downhole movement of the inner member relative to the outer member. In another embodiment, the coupling assembly comprises a planetary gear system that interconnects both members to provide high torque to the downhole tool at relatively low output speed of the dual member drill string.

Coupling for dual member pipe

An apparatus for bursting pipe is preferably adapted to receive rotational energy from the inner member of a dual-member drill string. In a preferred embodiment, an oscillating pipe-bursting member, driven by the interconnected inner members, cuts or bursts a subterranean pipe. In another preferred embodiment, a screw drive moves a pipe-bursting member between an expanded position and a retracted position. In another preferred embodiment, the pipe-bursting member is an arm moveable in response to operation of a screw drive. In yet another preferred embodiment, the pipe-bursting member is hydraulically actuated. This invention increases the efficiency of pipe-bursting operations by utilizing rotation energy generated by a horizontal directional boring system.

Rotary driven pipe-bursting tool

An automatic pipe handling system for automatically transporting pipe sections to and from a horizontal boring machine. The system comprises a pipe handling assembly, a pipe lubrication assembly, a makeup/breakout assembly, and an automatic control system. The pipe handling assembly stores pipe sections and transports the pipe sections to and from the drill string of a boring machine. As the pipe handling assembly transports a pipe section, the pipe lubrication assembly lubricates the appropriate pipe joints. The makeup/breakout assembly secures the drill string and pipe joints so that pipe sections can be added to or removed from the drill string. A programmed controller automatically operates the pipe handling system and its components by synchronizing the operations of the pipe handling system. The controller sequences and times the operation of each aspect of the pipe handling system during both the boring operation and the backreaming operation.

System and method for automatically controlling a pipe handling system for a horizontal boring machine

Pipe handling device

A device utilized for accurately measuring inclination angles independent of roll position using optical methods, whereby an amplitude of reflected (or refracted) light rays from a surface of a gravity-leveled liquid are detected by a photo-detector. The amplitude of the detected light beam is a function of the beam's angle of incidence to the liquid, which is proportional to the angle of the sensor's inclination. The incline sensor includes a cylindrical symmetric vessel which is partially filled with a liquid, an axially symmetric light emitting diode (LED) and a photo-detector. The fluid is chosen to have indices of refraction of at least 1.33, or reflectivity &gt;0.60 so that measurable refraction (or reflection) angles can be realized for the geometry of the sensor. The liquid is also chosen to have freezing and boiling points acceptable for use in the desired applications.

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Perry, OK, United States of America

David R Payne