Floyd Ray Gunsaulis

6761231, Jul 13, 2004

May 6, 2002

10/139304

Matthew L. Dock - Stillwater OK
Richard Felix Sharp - Perry OK
Floyd R. Gunsaulis - Perry OK

The Charles Machines Works, Inc. - Perry OK

E21B 100

175 51, 175 74, 175107, 175298

A percussive tool adapted to receive rotational energy from the inner member of a dual-member drill string. In a preferred embodiment the percussive tool has a hydraulic pump, driven by a drive member, to operate the hammer assembly. In another preferred embodiment the percussive tool has a rotary-driven cam assembly adapted to mechanically operate the hammer assembly. This invention provides increased control and efficiency for the use of percussive force in horizontal directional drilling operations.

6896077, May 24, 2005

Nov 4, 2002

10/287270

Floyd R. Gunsaulis - Perry OK, US
David R. Payne - Perry OK, US
Michael L. Anderson - Pleasanton CA, US

The Charles Machines Works, Inc. - Perry OK

E21B007/04
E21B004/20
F16L001/028

175 62, 175 61, 175263, 175106, 4051843, 4051541

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.

7195079, Mar 27, 2007

Mar 31, 2004

10/813824

Kelvin P. Self - Stillwater OK, US
Floyd R. Gunsaulis - Perry OK, US
H. Stanley Mullins - Perry OK, US
Gerald A. Stangl - Stillwater OK, US
David R. Payne - Perry OK, US

The Charles Machine Works, Inc. - Perry OK

E21B 7/08

175 53, 175 62, 175 73, 175382

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.

7216724, May 15, 2007

Jun 28, 2004

10/878482

Kelvin P. Self - Stillwater OK, US
Floyd R. Gunsaulis - Perry OK, US
David R. Payne - Perry OK, US

The Charles Machine Works, Inc. - Perry OK

E21B 4/06

175 19, 175 73, 175320

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.

7331409, Feb 19, 2008

Feb 24, 2004

10/503327

Scott B. Cole - Edmond OK, US
Michael R. Campbell - Perry OK, US
Floyd R. Gunsaulis - Perry OK, US

The Charles Machine Works, Inc. - Perry OK

E21B 47/24

175 45, 1662552

A monitoring system is used to monitor the location and orientation of a downhole tool assembly by detecting an output signal. The downhole tool assembly has a beacon assembly with one or more configurable operation parameters. A transmitting assembly transmits an operation instruction signal to the beacon assembly to configure the operation parameters. The detected operation instruction signal is processed by the beacon assembly and the operation parameter is configured. The transmitting assembly may be separate from the monitoring system and have an input assembly. The input assembly allows the operator to input predetermined operation parameters into the transmitting assembly that are then transmitted to the beacon assembly. In a preferred embodiment, the configurable operation parameters may include the intensity and/or frequency of the output signal, the calibration and resolution of orientation sensors, and the rate at which data is transmitted from the beacon assembly.

7353889, Apr 8, 2008

May 17, 2005

10/908572

Floyd R. Gunsaulis - Perry OK, US
Kelvin P. Self - Stillwater OK, US

The Charles Machine Works, Inc. - Perry OK

E21B 10/32
E21B 41/00
E21B 29/00

175272, 175284, 175173, 175 53, 166 553, 4051843

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, a plurality of pipe-bursting members, driven by the interconnected inner members, cut or burst a subterranean pipe. In another preferred embodiment, a plurality of screw drives move the pipe-bursting members between an expanded position and a retracted position in response to rotation of the interconnected inner members.

7389831, Jun 24, 2008

Apr 14, 2005

11/106205

H. Stanley Mullins - Perry OK, US
Jerry W. Beckwith - Perry OK, US
Kelvin P. Self - Stillwater OK, US
Brent G. Stephenson - Stillwater OK, US
Floyd R. Gunsaulis - Perry OK, US

The Charles Machine Works, Inc. - Perry OK

E21B 7/28

175 62, 175215, 175323, 1753255

A system for boring horizontal boreholes and installing products using a dual member drill string. The system is comprised of a boring machine with a frame and a rotary drive supported on the frame, a downhole tool, and a dual member drill string. The drill string comprises an inner member disposed within a tubular outer member such that the inner member is rotatable independent of the outer member. The outer member has at least one helical projection supported on an exterior surface of the outer member. The projections on the outer member function as an auger to clear spoils and support the bore. The auger arrangement with the dual member drill string can be used in forward reaming or backreaming operations.

7510029, Mar 31, 2009

Aug 23, 2006

11/466725

Floyd R. Gunsaulis - Perry OK, US
Brian K. Bailey - Stillwater OK, US
Scott B. Cole - Edmond OK, US
Kelvin P. Self - Stillwater OK, US
Gerald A. Stangl - Stillwater OK, US

The Charles Machine Works, Inc. - Perry OK

E21B 7/04
E21B 47/02

175 61, 175 45

A tracking receiver system is used to track the progress of a downhole tool along a subsurface path having a desired grade. The tracking receiver system is adapted to detect a reference line originating from a reference line receiver and to determine the position of the downhole tool along a desired subsurface path relative to the reference line. In an alternative embodiment the tracking receiver system may comprise a global positioning satellite system to provide information used to determine the position of the downhole tool relative to the desired subsurface path.