Abstract: An industrial long handled tool component system is provided having interchangeable tool heads, connectors, handles and grips. The novel connector system provides a polygonal locking bar concentric with a round outer reinforcing collar both engaged by a material connector insert and separated by plastic isolations seals. The novel connector promotes connection integrity and prevents joint movement. An alternate embodiment provides a connector system without the collar to save weight and manufacturing cost.

Abstract: A cutting structure for use with a reamer in enlarging a borehole in a subterranean formation includes a plurality of cutter blocks, radially extendable from a reamer body away from a central axis of the reamer body, each of the plurality of cutter blocks comprising at least one cutter blade thereon, wherein an angular spacing about the central axis of the reamer body between the at least one cutter blade on each of the plurality of cutter blocks is unequal.

Abstract: An industrial long handled tool component system is provided having interchangeable tool heads, connectors, handles and grips. The novel connector system provides a polygonal locking bar concentric with a round outer reinforcing collar both engaged by a material connector insert and separated by plastic isolations seals. The novel connector promotes connection integrity and prevents joint movement. An alternate embodiment provides a connector system without the collar to save weight and manufacturing cost.

Abstract: A lock assembly that has a locked state and an unlocked state. The lock assembly includes a latch assembly that has a latch and a clutch mechanism. The clutch mechanism includes a first retractor that is movable in response to movement of an interior handle assembly and selectively in response to movement of the exterior handle assembly, and a second retractor that is movable in response to movement of the interior handle assembly and the exterior handle assembly. The first retractor is always engaged with the latch assembly to move the latch between the extended position and the retracted position. The second retractor is selectively disengaged from the latch assembly and is movable relative to the first retractor when the lock assembly is in the locked state.

Abstract: A cutting structure for use with a reamer in enlarging a borehole in a subterranean formation includes a plurality of cutter blocks, radially extendable from a reamer body away from a central axis of the reamer body, each of the plurality of cutter blocks comprising at least one cutter blade thereon, wherein an angular spacing about the central axis of the reamer body between the at least one cutter blade on each of the plurality of cutter blocks is unequal.

Abstract: The present invention relates to novel devices and methods of filling tanks designed for holding non-hazardous fluids, especially tanks on recreational vehicles. In a preferred embodiment, the tank to be filled is a water tank. The device of the present invention incorporates several novel and non-obvious features to create a device that permits the filling of tanks in a hands-free manner while keeping water waste to a minimum and preventing the damaging of tank, fill neck or other tank or fill components due to the over filling of the tank.

Abstract: An industrial long handled tool component system is provided having interchangeable tool heads, connectors, handles and grips. The novel connector system provides a polygonal locking bar concentric with a round outer reinforcing collar both engaged by a material connector insert and separated by plastic isolations seals. The novel connector promotes connection integrity and prevents joint movement. An alternate embodiment provides a connector system without the collar to save weight and manufacturing cost.

Abstract: A downhole tool assembly is configured for repeated and selective hydraulic actuation and deactuation. A piston assembly is configured to reciprocate axially in a downhole tool body. The piston assembly reciprocates between a first axial position and second and third axial positions that axially oppose the first position. The downhole tool is actuated when the piston assembly is in the third axial position and deactuated when the piston assembly is in either of the first or second axial positions. A spring member biases the piston assembly towards the first axial position while drilling fluid pressure in the tool body urges the piston assembly towards the second and third axial positions. Downhole tool actuation and deactuation may be controlled from the surface, for example, via cycling the drilling fluid flow rate.

Abstract: In a process for producing a tetrabromophthalic diester composition, a liquid reaction mixture is prepared comprising tetrabromophthalic anhydride (TBPA), a C2 to C6 polyhydric aliphatic alcohol (PAA) and an alkylene oxide (AO) selected from the group consisting of ethylene oxide and propylene oxide, said reaction mixture being substantially free of an organic solvent. While agitating the reaction mixture, the temperature of the reaction mixture is raised to at least 50° C. to allow the TBPA to react with the PAA and AO to produce a diester composition. The reaction is terminated when the diester composition has an acid value equal to or less than 0.25 mg KOH/gm of the diester composition.

Abstract: The present invention provides vascular introducer sheaths incorporating improved passive valves which can maintain hemostasis around medical instruments. A passive sheath valve for creating a hemostatic seal around a medical instrument comprises a valve body having an upstream end, a downstream end, and a lumen having an inner and outer surface therethrough. The valve body defines a sealing aperture that is configured nominally to remain open. The upstream end includes an upstream annulus region defining at least one opening and the downstream end includes a downstream annulus region. Each annulus region and lumen outer surface define at least one chamber. The at least one opening transmits pressure from the upstream end through the upstream annulus region so as to allow a fluid to enter the at least one chamber.

Abstract: One or more embodiments of a controller for controlling a fuel-fired water heater are provided that are able to detect a high rate of temperature change condition in the water heater tank. The fuel fired water heater appliance having a water storage vessel comprises a surface mount sensor disposed on the outer surface of the storage vessel near the bottom of the vessel, for sensing the temperature of the vessel. The controller monitors the rate of change of the temperature sensed by the surface mount sensor during a heating cycle, and discontinues operation of the water heater appliance upon detecting an increase in the rate of temperature change that is indicative of an undesirable level of sediment build-up in the water storage vessel.

Abstract: One or more embodiments of a controller for controlling a fuel-fired water heater are provided that are able to detect a high rate of temperature change condition in the water heater tank. The fuel fired water heater appliance having a water storage vessel comprises a surface mount sensor disposed on the outer surface of the storage vessel near the bottom of the vessel, for sensing the temperature of the vessel. The controller monitors the rate of change of the temperature sensed by the surface mount sensor during a heating cycle, and discontinues operation of the water heater appliance upon detecting an increase in the rate of temperature change that is indicative of an undesirable level of sediment build-up in the water storage vessel.

Abstract: The present invention relates to novel devices and methods of filling tanks designed for holding non-hazardous fluids, especially tanks on recreational vehicles. In a preferred embodiment, the tank to be filled is a water tank. The device of the present invention incorporates several novel and non-obvious features to create a device that permits the filling of tanks in a hands-free manner while keeping water waste to a minimum and preventing the damaging of tank, fill neck or other tank or fill components due to the over filling of the tank.

Abstract: The present invention relates generally to a gas-compression spray device, wherein the nozzle assembly containing all of the wettable parts is detachable from the body of the spray device.

Abstract: Vascular introducer sheaths incorporating improved passive valves which can maintain hemostasis around medical instruments. A passive sheath valve for creating a hemostatic seal around a medical instrument including a valve body having an upstream end, a downstream end, and a lumen having an inner and outer surface therethrough. The valve body defines a sealing aperture that is configured nominally to remain open. The upstream end includes an upstream annulus region defining at least one opening and the downstream end includes a downstream annulus region. Each annulus region and lumen outer surface define at least one chamber. The at least one opening transmits pressure from the upstream end through the upstream annulus region so as to allow a fluid to enter the at least one chamber.

Abstract: A method for forming a drill bit body is disclosed which comprises infiltrating powdered tungsten carbide with a binder alloy in a mold. The mold has therein at least one displacement adapted to form a mounting pad for a cutting element. The displacement comprises a substantially cylindrical body having a diameter selected to substantially conform to a radius of the cutting element and a projection adapted to form a relief groove under a position of a diamond table in the cutting element when the cutting element is mounted on the pad. The width of the relief groove is selected so that the relief groove extends back from an outer surface of the bit body at least about 40 percent of that portion of a thickness of the diamond table which does not extend past the outer surface.