| Patent application number | Description | Published |
|---|
| 20100084140 | DOWNHOLE SEAL AND ANCHOR RELEASING SYSTEM AND METHOD - A downhole seal and anchor releasing device includes, a seal defeatable via a first pull, an anchor releasable via a second pull, and an energy dissipation device configured to dissipate enough energy from the first pull subsequent defeat of the seal to prevent release of the anchor in response to the first pull | 04-08-2010 |
| 20100096122 | Wellbore Cleaning Devices - Non-rotating tubular wellbore cleaning devices are described which include a central tool mandrel with radially surrounding stabilizers and a cleaning member subassembly. A rotational bearing is provided that is partially radially recessed, thereby improving the overall strength of the cleaning device. | 04-22-2010 |
| 20110024106 | Ball Catcher with Retention Capability - A ball catcher is designed to stop balls that are the same size or different sizes at an inlet on a seat that is connected to a movable biased sleeve. Once the ball or other shaped object lands at the seat the flow around it increases differential pressure on the seat and sleeve and displaces them against the bias. The ball goes into a surrounding annular space and cannot exit. A preferably spiral sleeve guide the movement of the balls in the annular space so that efficient use of the annular space is made to maximize the number of balls that can be captured per unit length of the annular space. As soon as the ball enters the annular space the sleeve shifts back to the original position to stop the next ball at the inlet. Once in the annular space, the balls cannot escape if there is a flow reversal. The central passage remains open to pass other tools and flow. | 02-03-2011 |
| 20110265988 | Wellbore Cleaning Devices - A wellbore cleaning device having a unitary tool mandrel surrounded by a retaining sleeve that is rotatable with respect to the mandrel. A locking ring is used to secure the retaining sleeve to the mandrel. Cleaning blades are retained within recesses in the retaining sleeve and are biased radially outwardly from the recesses by springs. | 11-03-2011 |
| 20110271470 | Brush Assembly with Non-Rotating Stabilizer and Brushes - A brush assembly for cleaning a surrounding tubular member. The brush assembly includes a brush portion that is rotationally moveable with respect to a central tool mandrel and debris chamber. The brush portion includes at least one brush and a stabilizer. | 11-10-2011 |
| 20110284203 | Downhole Magnetic Retrieval Devices with Fixed Magnetic Arrays - A magnetic retrieval tool used for collecting metallic debris and material from within a wellbore or other surrounding downhole tubular. The tool includes a tool mandrel with one or more pockets formed in its outer radial surface. A removable insert resides within each pocket. Each of the inserts retains a plurality of individual magnets in a fixed array or matrix surrounding the mandrel. | 11-24-2011 |
| 20110284210 | Dual-Pole Magnetic Attraction Downhole Magnetic Retrieval Apparatus - A magnetic retrieval tool used for collecting metallic debris and material from within a wellbore or other surrounding downhole tubular. The tool includes a tool mandrel with a removable insert which contains one or more magnets. The insert is formed such that both the north and south magnetic poles of the one or more magnets are able to attract metallic debris. | 11-24-2011 |
| 20110284211 | Retaining and Isolating Mechanisms for Magnets in a Magnetic Cleaning Tool - A magnetic retrieval tool used for collecting metallic debris and material from within a wellbore or other surrounding downhole tubular. The tool includes a tool mandrel. A removable insert resides upon the tool mandrel. The insert retains a plurality of individual magnets in a fixed array or matrix surrounding the mandrel. | 11-24-2011 |
| 20110285155 | Magnetic Retrieval Apparatus and Method for Retaining Magnets on a Downhole Magnetic Retrieval Apparatus - Magnetic retrieval tools for use in a wellbore or other tubular member to remove metallic debris. A magnetic retrieval tool includes a tool body having a central shaft with a plurality of ribs that project radially outwardly therefrom. The ribs present lateral sides that have recesses formed therein. Magnet bars are retained within the recesses by wedge members and retaining rings. The magnet bars include a hollow protective housing that encloses a plurality of magnets. Retaining plugs are used to secure the magnets within the housing. | 11-24-2011 |
| 20110315389 | Downhole Multiple Cycle Tool - A tool for use in a wellbore which includes a housing having an axial flow bore and a piston sleeve moveably disposed within the flow bore. The tool is moveable between first and second operating positions by an actuation mechanism having a piston with a ball seat. The tool can be moved between first and second operating positions with the use of actuating balls of different sizes that can be landed upon the ball seat. | 12-29-2011 |
| 20110315390 | Tool with Multi-Size Ball Seat Having Segmented Arcuate Ball Support Member - A tool for use in a wellbore which includes a housing having an axial flow bore and a piston sleeve moveably disposed within the flow bore. The tool is moveable between first and second operating positions by an actuation mechanism having a piston with a ball seat having a partially annular shape with an outer base and a plurality of retaining segments projecting radially inwardly therefrom. The tool can be moved between first and second operating positions with the use of actuating balls of different sizes that can be landed upon the ball seat. | 12-29-2011 |
| 20120111556 | Casing Spears and Related Systems and Methods - A casing spear may comprise a mandrel, and a slip assembly comprising at least one slip. The at least one slip may comprise a generally wedge-shaped surface positioned and configured to cause the at least one slip to move radially outwards relative to the mandrel in response to a rotation of the mandrel and a torque acting on the slip assembly, the torque opposing the rotation of the mandrel. Additionally, a method of operating a casing spear may comprise inserting a casing spear into a casing, rotating a mandrel of the casing spear, applying a torque to a slip assembly of the casing spear with the casing, opposing the rotation of the mandrel, and applying a force in a radial direction to at least one slip of a slip assembly of the casing spear in response to the torque. | 05-10-2012 |
| Patent application number | Description | Published |
|---|
| 20090076659 | Wireless Extension to an Irrigation Control System and Related Methods - Several embodiments provide wireless extensions to an irrigation controller system and related methods of use, as well as other improvements to irrigation control equipment. In one implementation, an irrigation control system includes a transmitter unit including a controller and having a connector to be coupled to an irrigation controller having station actuation output connectors. The controller is configured to receive an indication that the irrigation controller has activated an irrigation station, and is also configured to cause the transmitter unit to transmit a wireless activation signal responsive to the indication. A receiver unit is coupled to an actuator coupled to an actuatable device, such as an irrigation valve, the actuator configured to actuate the irrigation valve to control the flow of water therethrough. The receiver unit receives the wireless activation signal and in response, causes the actuator to actuate the actuatable device. | 03-19-2009 |
| 20090222141 | WIRELESS EXTENSION TO AN IRRIGATION CONTROL SYSTEM AND RELATED METHODS - Several embodiments provide wireless extensions to an irrigation controller system and related methods of use, as well as other improvements to irrigation control equipment. In one implementation, an irrigation control system includes a transmitter unit including a controller and having a connector to be coupled to an irrigation controller having station actuation output connectors. The controller is configured to receive an indication that the irrigation controller has activated an irrigation station, and is also configured to cause the transmitter unit to transmit a wireless activation signal responsive to the indication. A receiver unit is coupled to an actuator coupled to an actuatable device, such as an irrigation valve, the actuator configured to actuate the irrigation valve to control the flow of water therethrough. The receiver unit receives the wireless activation signal and in response, causes the actuator to actuate the actuatable device. | 09-03-2009 |
| 20110224836 | SENSOR DEVICE FOR INTERRUPTING IRRIGATION - Methods and apparatus are provided herein for permitting or interrupting irrigation using sensor equipment. In one embodiment, a method for controlling irrigation comprising the steps of: generating an indication representing the amount of rain fall at a sensor unit; transmitting a signal comprising at least the indication from the sensor unit to an interface unit, wherein the interface unit is adapted to cause an interruption of programmed watering schedules of an irrigation controller; receiving the signal at the interface unit; determining, based at least on the indication from the signal, whether irrigation should be interrupted; and generating an interrupt command to interrupt irrigation. | 09-15-2011 |
| 20110238227 | SENSOR DEVICE FOR INTERRUPTING IRRIGATION - Methods and apparatus are provided herein for permitting or interrupting irrigation using sensor equipment. In one embodiment, a method for controlling irrigation comprising the steps of: generating an indication representing the amount of rain fall at a sensor unit; transmitting a signal comprising at least the indication from the sensor unit to an interface unit, wherein the interface unit is adapted to cause an interruption of programmed watering schedules of an irrigation controller; receiving the signal at the interface unit; determining, based at least on the indication from the signal, whether irrigation should be interrupted; and generating an interrupt command to interrupt irrigation. | 09-29-2011 |
| 20110288690 | Wireless Extension to an Irrigation Control System and Related Methods - Several embodiments provide wireless extensions to an irrigation controller system and related methods of use, as well as other improvements to irrigation control equipment. In one implementation, an irrigation control system includes a transmitter unit including a controller and having a connector to be coupled to an irrigation controller having station actuation output connectors. The controller is configured to receive an indication that the irrigation controller has activated an irrigation station, and is also configured to cause the transmitter unit to transmit a wireless activation signal responsive to the indication. A receiver unit is coupled to an actuator coupled to an actuatable device, such as an irrigation valve, the actuator configured to actuate the irrigation valve to control the flow of water therethrough. The receiver unit receives the wireless activation signal and in response, causes the actuator to actuate the actuatable device. | 11-24-2011 |
