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3M employee and church chorister Art Fry needed something to temporarily mark pages in his hymnal. He was in luck because his colleague, Spencer Silver, accidentally developed a glue that was too weak for other purposes. After initially discouraging consumer response, Post-it Notes became a hit in 1979.
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| Number | Title | Issue Date |
| 7921939 | Method for using a top drive with an air lift thread compensator and a hollow cylinder rod providing minimum flexing of conduit A method for using a top drive is disclosed herein. The method can include: actuating a motor to provide power to the top drive, thereby rotating a stem with a saver sub mounted to a top drive housing having a bearing disposed about the rotatable stem; grabbing, lif... | 04/12/2011 |
| 7905299 | Articulation assembly for moving a drill mast A jib assembly for use with a drill rig includes a jib boom having a first end and a second end. The jib boom is to rotate about the first end and the second end is configured to be coupled to a mast assembly mount. The jib assembly also includes an articulation ass... | 03/15/2011 |
| 7644785 | Geothermal heat loop installation Methods and apparatuses associated with a rotary driven well drilling rig. One method includes providing a rig having: an erectable mast; a head drive unit for rotatably driving drill pipes into a surface; a pumping unit to deliver a fluid through a drill pipe secur... | 01/12/2010 |
| 7493970 | Shock mounted top drive A shock mounted top drive comprising a traveling frame for moving along a drilling tower, the traveling frame comprising a first and second housing section, at least one set of sheaves mounted to the upper section of each housing section, a guide wheel assembly secu... | 02/24/2009 |
| 7487848 | Multi-seal for top drive shaft A multi-seal sealing assembly with multiple seals so that when one seal wears out another can be moved into sealing position; and a top drive system for wellbore operations with such a sealing assembly; the sealing assembly in one aspect having a seal carrier movabl... | 02/10/2009 |
| 7431105 | Geothermal heat loop installation Methods and apparatuses associated with a rotary driven well drilling rig. One method includes providing a rig having: an erectable mast; a head drive unit for rotatably driving drill pipes into a surface; a pumping unit to deliver a fluid through a drill pipe secur... | 10/07/2008 |
| 7347286 | Drill string valve assembly A drill string valve assembly includes a tubular valve body, including an outer surface and an inner bore for housing a valve mechanism to control fluid flow through the bore; and an axial load support releasably securable to the outer surface of the valve body, the... | 03/25/2008 |
| 7328757 | All terrain vehicle powered mobile drill A method includes powering a drill motor with power derived from an all terrain vehicle (ATV) engine and controlling the drill motor. An apparatus includes a ATV with a power takeoff configured to deliver power from an ATV engine. A drill mast is moveably coupled to... | 02/12/2008 |
| 7322406 | Elevation sensor for a service hose and an apparatus for positioning and stabbing well tubulars An operational system and method and improved apparatus for positioning and stabbing well tubulars wherein: the grasping members of the apparatus can be folded and unfolded; the boom assembly can be pivoted to a downward clearance position; a plurality of stabbing a... | 01/29/2008 |
| 7320374 | Wellbore top drive systems A system for wellbore operations, the system, in at least certain aspects, including a derrick, a guide beam connected to the derrick, a top drive movable on the guide beam, torque reaction structure connected to the guide beam and to the derrick, skid apparatus hel... | 01/22/2008 |
| 7282637 | Grounding system Exemplary embodiments provided herein may include segmented grounding system, including a bit including a coupling portion at a first end, and a generally tapered second end, a shaft with a first end configured to couple to the coupling portion of the bit, and a sec... | 10/16/2007 |
| 7270182 | Earth loop installed with sonic apparatus A method for installing a heat exchange pipe loop in a borehole, the method, in at least certain aspects, including drilling a borehole with a sonic drill system having a head and casing connected thereto, a drill apparatus on a lower end of the casing movable by th... | 09/18/2007 |
| 7255330 | Field adjustable bridge crane block A field adjustable block for use with a bridge crane having a rotating cylindrical drum for rope. The block includes a cylindrical center pin having a key way recess parallel to an axis of the center pin. An inner side plate has an opening therethrough and an extend... | 08/14/2007 |
| 7231969 | Wellbore top drive power systems and methods of use A top drive system having a drive motor, a gear system coupled to the drive motor, a drive quill coupled to the gear system, a top drive support system for supporting the drive motor, the gear system, and the drive quill, a lower support apparatus connected to the t... | 06/19/2007 |
| 7228913 | Tubular clamp apparatus for top drives and methods of use An apparatus for releasably clamping and holding a member for wellbore operations, the apparatus having a main body, two opposed clamping apparatuses in the main body, the two opposed clamping apparatuses spaced-apart for selective receipt therebetween of a member t... | 06/12/2007 |
| 7228920 | Drilling apparatus and method for introducing a drilling element into the soil The invention relates to a drilling apparatus and a method for introducing a drilling element into the soil. The drilling element is rotatably and slidably supported on a mast, with a torque being applied through a rotary drive located on the mast. In order to suppo... | 06/12/2007 |
| 7222683 | Wellbore top drive systems An containerized top drive system including a container, top drive apparatus removably disposed within the container, an extension system for moving the top drive apparatus generally horizontally within a derrick, the top drive apparatus secured to the extension sys... | 05/29/2007 |
| 7191840 | Casing running and drilling system A method and apparatus for holding and turning a tubular and string of tubulars, such as casing, for make-up and drilling with the tubulars are disclosed. The apparatus generally includes a spear and a clamping head, both of which are mounted to a top drive. The spe... | 03/20/2007 |
| 7191853 | Hole cleaning and/or forming tool A tool for cleaning and/or forming holes, the tool having a shaft, the shaft having a lower end and at least two buckets attached adjacent to the lower end of the shaft, each bucket having an open mouth which extends radially from the axis of the shaft, consequently... | 03/20/2007 |
| 7188686 | Top drive systems A top drive system for wellbore operations including a hollow bore alternating current permanent magnet motor with a motor bore therethrough, a planetary gear system coupled to the motor, the gear system having a gear system bore therethrough, a quill drivingly conn... | 03/13/2007 |
| 7165634 | Method and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells The steel drill string attached to a drilling bit during typical rotary drilling operations used to drill oil and gas wells is used for a second purpose as the casing that is cemented in place during typical oil and gas well completions. Methods of operation are des... | 01/23/2007 |
| 7147068 | Methods and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells The steel drill string attached to a drilling bit during typical rotary drilling operations used to drill oil and gas wells is used for a second purpose as the casing that is cemented in place during typical oil and gas well completions. Methods of operation are des... | 12/12/2006 |
| 7107875 | Methods and apparatus for connecting tubulars while drilling The present invention provides an apparatus that permits sections of tubulars to be connected to or disconnected from a string of pipe during a drilling operation. The apparatus further permits the sections of drill pipe to be rotated and to be axially translated du... | 09/19/2006 |
| 7100709 | Feed table pivot pin constraining device A restraining arrangement for limiting the separation of a feed table having a pivot pin and a positioner block of a mobile track drill. The restraining arrangement includes a first constraint device positioned on the positioner block and a second constraint device ... | 09/05/2006 |
| 7100697 | Method and apparatus for reforming tubular connections The present invention generally relates to methods and apparatus for connecting tubulars and reforming the connection between the tubulars. In one aspect of the invention, the tubulars are aligned, connected, and then reformed at the connection. In one embodiment, t... | 09/05/2006 |
| 7093657 | Earth loop installed with sonic apparatus A method for installing a heat exchange pipe loop in a borehole, the method, in at least certain aspects, including drilling a borehole with a sonic drill system having a head and casing connected thereto, a drill apparatus on a lower end of the casing movable by th... | 08/22/2006 |
| 7090035 | Method and system for connecting pipe to a top drive motor Method and system for connecting a joint of pipe to a top drive motor just above the drilling platform of a drilling rig where the connection can be made quickly and safely by a drilling operator. The system includes a top drive motor that tilts about a horizontal a... | 08/15/2006 |
| 7070359 | Microtunneling systems and methods of use A tunneling system including a tunneling apparatus including a cutting structure for forming a borehole and at least one linkage section for transmitting a force generally toward the cutting structure is disclosed. A method of disposing a casing string within a subt... | 07/04/2006 |
| 7055609 | Handling and assembly equipment and method A handling and assembly system and method for use in deploying tubing in a subterranean environment. A framework is used to linearly engage sequential tubular members as a tubing string is formed and run into a subterranean environment. The system also facilitates t... | 06/06/2006 |
| 7048050 | Method and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells The steel drill string attached to a drilling bit during typical rotary drilling operations used to drill oil and gas wells is used for a second purpose as the casing that is cemented in place during typical oil and gas well completions. Methods of operation are des... | 05/23/2006 |
| 7036610 | Apparatus and method for completing oil and gas wells A method of drilling and completing a wellbore in a geological formation to produce hydrocarbons from a well comprising at least the following four steps: drilling the well with a retrievable drill bit attached to a casing; removing the retrievable drill bit from th... | 05/02/2006 |
| 7032692 | Drilling device for earth drill Locking elements 3d and 3j are provided at an inner member 3 connected to a kelly bar 1, and a locking element bearing plate 6f is provided at an outer member 6. The outer member 6 includes a cyli... | 04/25/2006 |
| 7004680 | Temporary support assembly and method of supporting a flexible line A support assembly for a flexible line comprises a hanger to suspend the flexible line from an offshore oil rig without subjecting the line to a bending stress adjacent the support assembly, a frame supporting the hanger, and a connector coupled to the frame to remo... | 02/28/2006 |
| 6994174 | Washpipe assembly A drilling system is provided that includes first and second tubular connectors and a washpipe assembly including at least one dynamic seal and defining a fluid conduit having a first mating connector and a second mating connector. The drilling system also includes ... | 02/07/2006 |
| 6978830 | Downhole latch A progressive cavity pump pumps liquid downhole to a lower formation past a packer set in a casing of a wellbore. The rotor of the pump is axially restrained by a bearing assembly spaced below the pump for controlling uphole reactive loading on the rotor. Preferably... | 12/27/2005 |
| 6957707 | Method for controlling a drilling sequence, a rock drilling apparatus and a computer programme to form a drilling sequence A method and a computer program for controlling a drilling cycle in a rock drilling apparatus, and a rock drilling apparatus. In accordance with the invention, each drilling unit in the rock drilling apparatus is monitored during a drilling period, and a drilling se... | 10/25/2005 |
| 6955219 | Earth loop installation with sonic drilling A method for installing a heat exchange pipe loop in a borehole, the method in at least certain aspects, including drilling a borehole with a sonic drill system having a head and casing connected thereto, a drill shoe on a lower end of the casing movable by the soni... | 10/18/2005 |
| 6918454 | Automated control system for back-reaming A system that controls a back reaming operation of a drilling rig is provided that includes a hoisting system that moves a drill pipe during a back reaming operation at a hoisting speed and a hoisting torque. The hoisting system comprises at least one back reaming p... | 07/19/2005 |
| 6913096 | Top drive well drilling apparatus A top drive well drilling apparatus includes a body with means for suspending the body from a drilling rig. A motor is secured to the body. The motor has a central passage defining a rotational axis. The central passage is adapted to receive a tubular drive shaft. A... | 07/05/2005 |
| 6845825 | Method and apparatus for attaching/detaching drill rod A control system for a drilling machine is disclosed. The drilling machine includes a rod driver for driving a string of rods into the ground, and for removing the string of rods from the ground. The drilling machine also includes a magazine for storing rods near th... | 01/25/2005 |
