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| Number | Title | Issue Date |
| 7086479 | Expanding well tools Methods of expanding well tools, which permit operation of the well tools after expansion, are provided. In a described example, a cementing tool includes a valve and a packer. After the cementing tool is expanded, the valve is selectively opened and closed, and the... | 08/08/2006 |
| 7044124 | Heating apparatus having insulation-contacted fuel burners A fuel-fired heating appliance has multiple premix type fuel burners horizontally disposed in a row in its combustion chamber and operable in a staged manner. The burners are upwardly spaced apart from a rigid fiberboard insulation panel structure extending along th... | 05/16/2006 |
| 7042367 | Very high data rate telemetry system for use in a wellbore A very high data rate telemetry system is provided for use in a wellbore. In a described embodiment, a telemetry system includes multiple nodes positioned in the wellbore and distributed over a substantial length of the wellbore. The nodes simultaneously communicate... | 05/09/2006 |
| 7040258 | Low NOx water heater with serpentined air entry A fuel-fired low NOx water heater extending along a vertical axis has a radiant fuel burner disposed in its combustion chamber. The entire burner combustion air quantity is delivered to the burner from outside the combustion chamber via a horizontally serpentined fl... | 05/09/2006 |
| 7028642 | Water heater having raw fuel jet pilot and associated burner clogging detection apparatus A radiant gas burner within the combustion chamber of a water heater has a pilot flame created using a raw fuel jet that impinges on an interior surface portion of a flame holding outer burner wall portion, representatively of a metal wire mesh material, and is mixe... | 04/18/2006 |
| 7027723 | Water heater electrical enclosure insert/foam dam Electrical components projecting outwardly from the storage tank portion of an electric water heater are shielded from foam insulation material being injected into an insulation space between the tank and an outer jacket portion of the water heater by a hollow, open... | 04/11/2006 |
| 7013841 | Differently configured fuel-fired water heaters constructed from identical production platforms A specially configured fuel-fired water heater production platform may be used as a natural draft water heater. Alternatively, by modifying an upper end portion of the production platform using associated conversion apparatus, the same platform may be converted to a... | 03/21/2006 |
| 7013980 | Hydraulically actuated control system for use in a subterranean well A control system for use in controlling actuation of tools in a subterranean well. In a described embodiment, a control system includes a well tool, an actuator for the well tool and a control module interconnected between the actuator and first and second fluid lin... | 03/21/2006 |
| 7007960 | Suspension system having reduced stress axle connection A vehicle suspension system includes features which reduce stress in an axle connection. In a described embodiment, a vehicle suspension system includes a sleeve which is clamped on an axle. The sleeve is retained in its clamped position and is welded to opposing si... | 03/07/2006 |
| 7007751 | Apparatus for extracting oil or other fluids from a well The present invention is directed towards a fluid extractor system that has been design to obtain fluid, such as crude oil from wells at a fraction of the cost by using a novel canister assembly lowered in a well to collect the fluid. The canister assembly includes ... | 03/07/2006 |
| 6994056 | Water heater having a low NOx burner integrated with FVIR platform Various embodiments of fuel-fired low NOx water heaters are provided with burners having built-in venturi inlet sections for receiving fuel from a source thereof and combustion air from outside of the water heater. The burners are integrated in various manners with ... | 02/07/2006 |
| 6995683 | System and method for transmitting downhole data to the surface A system and method are disclosed that provide for transmitting data from a downhole location to the surface. In one embodiment, a communications medium provides data transfer capabilities to the surface. A first downhole instrument is associated with the communicat... | 02/07/2006 |
| 6976325 | Excavating tooth assembly with rotatable connector pin structure A connector pin assembly is disposed within an opening in an adapter nose, with opposite ends of a rotatable pin portion of the assembly extending outwardly beyond opposite sides of the adapter nose in axially fixed orientations relative thereto, and is used to capt... | 12/20/2005 |
| 6964248 | Fuel-fired heating appliance with temperature-based fuel shutoff system A gas-fired water heater is provided with a combustion shutoff system which precludes further combustion within the water heater's combustion chamber in response to a combustion temperature therein reaching a predetermined level correlated to and indicative of a pre... | 11/15/2005 |
| 6957819 | Lift axle parallelogram suspension system A lift axle parallelogram suspension system. In a described embodiment, a suspension system for a vehicle having a generally longitudinally extending frame includes an axle assembly and upper and lower trailing arms. One end of each of the upper and lower arms is at... | 10/25/2005 |
| 6957628 | Fuel-fired heating appliance with temperature-based fuel shutoff system A gas-fired water heater is provided with a combustion shutoff system which precludes further combustion within the water heater's combustion chamber in response to a combustion temperature therein reaching a predetermined level correlated to and indicative of a pre... | 10/25/2005 |
| 6948726 | Tag axle suspension system A tag axle suspension system provides weight reduction and enhanced safety and ride quality. In a described embodiment, a tag axle suspension system includes hanger brackets pivotably attached to a vehicle frame. Actuators push rearwardly on the hanger brackets to r... | 09/27/2005 |
| 6917756 | Water heater electrical enclosure insert/foam dam Electrical components projecting outwardly from the storage tank portion of an electric water heater are shielded from foam insulation material being injected into an insulation space between the tank and an outer jacket portion of the water heater by a hollow, open... | 07/12/2005 |
| 6904873 | Dual fuel boiler A fuel-fired boiler having a supply fan for providing essentially all of its combustion air requirements and has a non-aspirating type burner section to an inlet portion of which pressure regulator apparatus is coupled, the pressure regulator apparatus having a pred... | 06/14/2005 |
| 6901766 | Coil drain pan apparatus An air conditioning cooling coil and its associated drain pan are positionable in either a vertical or horizontal air flow orientation. With the drain pan in its vertical air flow orientation, generally horizontally disposed drainage trough portions of the drain pan... | 06/07/2005 |
| 6899348 | Tag axle suspension system A tag axle suspension system provides weight reduction and enhanced safety and ride quality. In a described embodiment, a tag axle suspension system includes hanger brackets pivotably attached to a vehicle frame. Actuators push rearwardly on the hanger brackets to r... | 05/31/2005 |
| 6898375 | Water heater electrical enclosure insert/foam dam Electrical components projecting outwardly from the storage tank portion of an electric water heater are shielded from foam insulation material being injected into an insulation space between the tank and an outer jacket portion of the water heater by a hollow, open... | 05/24/2005 |
| 6898373 | Tank apparatus with open weave reinforcing patch structure A filament-wound tank portion of an electric water heater has a wall opening through which an electric heating element of other structure extends into the interior of the tank. The opening is reinforced by a stacked series of single layer, open weave patch members w... | 05/24/2005 |
| 6896368 | Multifocal soft contact lens with horizontally decentered lenslet and indicator marking A multifocal soft contact lens has a main carrier lens with a distance vision axis coincident with its geometric center and extending transversely through the intersection of transverse horizontal and vertical reference axes, and a smaller near vision lenslet suppor... | 05/24/2005 |
| 6893253 | Fuel-fired heating appliance with temperature-based fuel shutoff system A gas-fired water heater is provided with a combustion shutoff system which precludes further combustion within the water heater's combustion chamber in response to a combustion temperature therein reaching a predetermined level correlated to and indicative of a pre... | 05/17/2005 |
| 6889703 | Deployment of equipment into fluid containers and conduits Apparatus for deploying equipment in a fluid container or fluid conduit comprises a fluid housing having an outlet aperture, the fluid housing being adapted to be secured to the container or conduit such that the outlet aperture is in fluid communication with an ape... | 05/10/2005 |
| 6885816 | Water heater apparatus and associated manufacturing and insulation methods A foam dam in the insulation cavity of an electric water heater comprises a plastic bag into which liquid foam insulation is injected, the bag having an essentially closed top edge portion with only a small opening for receiving the injected insulation. A small port... | 04/26/2005 |
| 6871862 | Lift axle suspension system A lift axle suspension system. In a described embodiment, a lift axle suspension system includes: an axle assembly; an air spring connected between the axle assembly and a bracket attached to a vehicle frame; a trailing arm attached to the axle assembly; and a lift ... | 03/29/2005 |
| 6860326 | Packer releasing methods Methods of releasing a well tool set in a wellbore are provided. In various embodiments, a well tool, such as a packer, is released from sealing and gripping engagement within a wellbore using alternate methods. A dual-string packer is described in which the packer ... | 03/01/2005 |
| 6854428 | Water heater with normally closed air inlet damper A fuel-fired, power vented water heater has a combustion chamber with an outer wall portion defined by an arrestor plate in which flame quenching air inlet openings are formed. All combustion air entering the combustion chamber must first pass through an air inlet p... | 02/15/2005 |
| 6826855 | Excavating tooth point/adapter assembly with rotatably lockable connector structure A replaceable excavating tooth point is telescoped onto an adapter nose and releasably retained thereon by an elongated, flat connector member having an untapered side periphery. The connector member longitudinally extends through aligned point and connector opening... | 12/07/2004 |
| 6820532 | Sponson tow plate-mounted helicopter armament apparatus and associated methods External armament apparatus, including a machine gun, an associated ammunition box for supplying belted ammunition to the gun, a flare dispenser, a missile launcher or other external stores apparatus, and a forward looking infrared sensor (FLIR), is exteriorly suppo... | 11/23/2004 |
| 6814031 | Combustion air shutoff apparatus for a fuel-fired heating appliance A gas-fired water heater has a combustion chamber with a bottom wall defined by a perforated flame arrestor plate forming a portion of a flow path through which combustion air may be supplied to a burner structure within the combustion chamber. During firing of the ... | 11/09/2004 |
| 6802239 | Sponson tow plate-mounted helicopter armament apparatus and associated methods External armament apparatus, including a machine gun, an associated ammunition box for supplying belted ammunition to the gun, a flare dispenser, a missile launcher or other external stores apparatus, and a forward looking infrared sensor (FLIR), is exteriorly suppo... | 10/12/2004 |
| 6802238 | Sponson tow plate-mounted helicopter armament apparatus and associated methods External armament apparatus, including a machine gun, an associated ammunition box for supplying belted ammunition to the gun, a flare dispenser, a missile launcher or other external stores apparatus, and a forward looking infrared sensor (FLIR), is exteriorly suppo... | 10/12/2004 |
| 6799635 | Method of cementing a tubular string in a wellbore Methods of expanding well tools, which permit operation of the well tools after expansion, are provided. In a described example, a cementing tool includes a valve and a packer. After the cementing tool is expanded, the valve is selectively opened and closed, and the... | 10/05/2004 |
| 6799386 | Excavating tooth point/adapter assembly A rotatable connector pin assembly is disposed within an opening in an adapter nose, with opposite ends of the pin portion of the assembly extending outwardly beyond opposite sides of the adapter nose in axially fixed orientations relative thereto, and is used to ca... | 10/05/2004 |
| 6789455 | Sponson tow plate-mounted helicopter armament apparatus and associated methods External armament apparatus, including a machine gun, an associated ammunition box for supplying belted ammunition to the gun, a flare dispenser, a missile launcher or other external stores apparatus, and a forward looking infrared sensor (FLIR), is exteriorly suppo... | 09/14/2004 |
| 6785466 | Electric water heater having balanced wattage density water heating An electric water heater has a tank portion in which water to be heated is stored. The stored water is heated by a vertically spaced plurality of electric heating elements extending into the tank interior. The heating elements are of unequal wattages, and serve uneq... | 08/31/2004 |
| 6779430 | Sponson tow plate-mounted helicopter armament apparatus and associated methods External armament apparatus, including a machine gun, an associated ammunition box for supplying belted ammunition to the gun, a flare dispenser, a missile launcher or other external stores apparatus, and a forward looking infrared sensor (FLIR), is exteriorly suppo... | 08/24/2004 |
