Did You Know...
...Daniel Webster invented a "bull plow" to pull out tree stumps. It didn't catch on because it was huge and required four oxen to pull it!
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| Number | Title | Issue Date |
| 8047232 | Enhancement of vortex induced forces and motion through surface roughness control Roughness is added to the surface of a bluff body in a relative motion with respect to a fluid. The amount, size, and distribution of roughness on the body surface is controlled passively or actively to modify the flow around the body and subsequently the Vortex Ind... | 11/01/2011 |
| 7980271 | Fluid flow controller A fluid pathway is provided with a flow controller in at least a portion of its length wherein the flow controller comprises an active surface capable of influencing the fluid flow through the fluid pathway, the configuration of the active surface conforming to at l... | 07/19/2011 |
| 7779866 | Segmented trapped vortex cavity An annular trapped vortex cavity assembly segment comprising includes a cavity forward wall, a cavity aft wall, and a cavity radially outer wall therebetween defining a cavity segment therein. A cavity opening extends between the forward and aft walls at a radially ... | 08/24/2010 |
| 7243678 | Fuel fill system with fuel vapor recirculation A fuel fill system includes a funnel having an inlet port configured to receive a nozzle from an external fuel source, a fuel filler tube coupled to an outlet port of the funnel, and a vapor recirculation tube coupled to the funnel. Fuel vapor entering the funnel fr... | 07/17/2007 |
| 7234489 | Valve with vortex chamber and a mechanical member to shut off flow A valve assembly (10) comprises a vortex chamber (14) with an axial outlet port (20), a main inlet port (16) for a fluid to be controlled, and a substantially tangential inlet port (25); the fluid enters through an inlet chamber ( | 06/26/2007 |
| 7144515 | Method and apparatus for improving swimming pool skimmer efficiency An improved pool skimmer apparatus and method that enhances the effectiveness of a swimming pool skimmer assembly. In particular, my inventive method and apparatus makes pool skimmers more effective at capturing floating debris and directing it to the pool filter sy... | 12/05/2006 |
| 7111797 | Non-contact fluid particle cleaner and method A fluid particle cleaner and method are disclosed. The invention provides a partition to a side of a fluid nozzle to form: a central cavity configured to define the fluid departing the surface into a central cavity vortex; and a side cavity adjacent the central cavi... | 09/26/2006 |
| 7105040 | Wine must and pomace pump A wine must pump (10) for pumping a wine product (23) such as must or pomace, has an intake port (14) for receiving the wine product (23), a discharge port (16) for discharging the wine product (23) under pressure, vacuum ch... | 09/12/2006 |
| 7011101 | Valve system A valve system (10) controls the fluid flow between an inlet (12) and an outlet (14). The system (10) splits the flow into two parallel flow ducts (15, 16) and recombines the flows through opposed tangential inlets (18) and ... | 03/14/2006 |
| 6938835 | Liquid scanner nozzle and method A full coverage area spray device has an oscillation chamber. Chamber end plates have a diameter D and the distance between the inlet and outlet apertures is L and ratio L/D determines the spray pattern and is adapted to support a basic toroidal flow pattern that re... | 09/06/2005 |
| 6811687 | Vortex pool cleaner The present invention aims at improving pool cleaners. The improved pool cleaners utilize toroidal vortex technology to provide efficient fluid flow in a sealed system. The sealed system prevents dirt from escaping into surrounding fluid and retains kinetic energy o... | 11/02/2004 |
| 6615507 | Mixer for mixing gases and other newton liquids The invention provides a mixer for mixing gases and other Newton liquids, with a flow channel and built-in surfaces arranged in the flow channel that influence the flow. The built-in surfaces are vortex-generating surfaces with free surging leading edges ... | 09/09/2003 |
| 6482306 | Meso- and microfluidic continuous flow and stopped flow electroosmotic mixer An electroosmotic mixing device and a method for mixing one or more fluids for use in meso- or microfluidic device applications. The mixing device provides batch or continuous mixing of one or more fluids in meso- or microfluidic channels. An electric fie... | 11/19/2002 |
| 6406216 | Storm sewer overflow control device A storm sewer overflow control device for controlling runoff surge flows from a generally vertically oriented storm drain into a generally horizontally oriented storm sewer pipe includes an engagement portion configured for insertion into the storm sewer ... | 06/18/2002 |
| 6082925 | Storm sewer overflow control device A storm sewer overflow control device for controlling runoff surge flows from a generally vertically oriented storm drain into a generally horizontally oriented storm sewer pipe includes an engagement portion configured for insertion into the storm sewer ... | 07/04/2000 |
| 5984662 | Karman vortex generating burner assembly A burner assembly for use in a gas burning fireplace for producing flame patterns simulating flame patterns produced by real burning wood, and a method for producing such flame patterns. A preferably cylindrical bluff body is placed into the gas flow path... | 11/16/1999 |
| 5935424 | Close tolerance, low flow, flow control device using etched discs A flow control device (FCD) controls low flow rate fluid flow to within closely tolerated and consistently maintained limits by way of improved stacked disc technology. Stacking face to face of similar disc configurations generates novel enhanced etched d... | 08/10/1999 |
| 5505262 | Fluid flow acceleration and pulsation generation apparatus A fluid accelerating and pulsation generating apparatus for minimizing loss in fluid energy through frictional pressure drop for fluid passing through the apparatus is characterized by a body having a generally cylindrical chamber formed by a cylindrical ... | 04/09/1996 |
| 5322043 | Spiral spin charge or sheathing system Apparatus for imparting a spiral spin on a fluid in zone 2 surrounding a columnar substance in zone 1 which may be a metal electrode or a fluid, such as gas for welding. The spirally spinning fluid may be an inert gas for sheathing zone 1 down to the weld... | 06/21/1994 |
| 5188868 | Method for coating surfaces of a powdered material by directing coating material into Coanda spiral flow of powdered material A method for coating surfaces of a powdered material includes forming a Coanda flow of a Coanda spiral flow of a powdered material by flowing the powdered material through a Coanda spiral flow forming passage or a Coanda flow forming passage by introducin... | 02/23/1993 |
| 5145256 | Apparatus for treating effluents An apparatus and method for treating effluents is disclosed for selective solids control and/or dewatering of effluents, for example drilling fluids (or mud), slurries or sludges, or other clean up involving solids removal from a hydraulic system where fl... | 09/08/1992 |
| 5070972 | Vortex valving assembly for a hydraulic damper A vortex valving assembly for a hydraulic damper is adaptable for use in both a piston and a cylinder end. A generator plate includes a plurality of upstanding, arcuate vanes for imparting a vortex to passing fluid and directing the fluid to a central ope... | 12/10/1991 |
| 4830053 | Fluidic devices A fluidic device, in particular a vortex diode, has a vortex chamber formed by spaced apart end walls and a peripheral side wall. An axial port is provided in one end wall and a further port permitting tangential flow into or out of the chamber is provide... | 05/16/1989 |
| 4815495 | Quick disconnect having reduced fluid pressure drop An improved quick disconnect apparatus comprising a nipple and coupler and having significantly improved Cv or flow characteristics resulting surprisingly from certain specified design ranges of flow path areas in relation to the flow path area at the int... | 03/28/1989 |
| 4762148 | Apparatus and method for the generation and utilization of a spiral gas stream in a pipeline A spiral gas stream is generated in a pipeline when a uniform flow of gas flowing in a cylinder having inner diameter larger than that of the pipeline is introduced through a funnelform reducer into the inlet of the pipeline and bringing the mean gas stre... | 08/09/1988 |
| 4721126 | Method of generating spiral fluid flow and the device therefor A spiral fluid flow is available for conveying, drying or separating pulverulent substances particle substances, slurries or gases. To obtain a high speed stable spiral fluid flow, there is used a device provided with a slit formed between a main conical ... | 01/26/1988 |
| 4684296 | Method and apparatus for the generation and utilization of a spiral gas stream in a pipeline Uniform flow of gas flowing in a cylinder having inner diameter larger than that of a pipeline is introduced through a funnelform reducer into the inlet of the pipeline, where uniform flow of gas turned to a spiral gas stream by bringing to the mean gas s... | 08/04/1987 |
| 4679595 | Device for controlling the flow in a pipe system In an eddy current brake for controlling quantitative flow in a water line and with a brake housing in the shape of lying frustum of a cone with an outlet opening in the narrow end and an inlet opening downwardly on the large end face there is disposed a ... | 07/14/1987 |
| 4679778 | Fluid-containing power unit mounting device A fluid-containing power unit mounting device capable of effectively damping vibration in a wide range of frequency is shown. The damping function of the device is accomplished by a mounting rubber forming an internal fluid-containing chamber between a po... | 07/14/1987 |
| 4601309 | Valve and dash-pot assembly A dash-pot valve comprising a cylinder submerged in the fluid of a housing and having a piston attached to a plunger projecting into the path of closing movement of a pivotal valve member. A vortex chamber in said cylinder is provided with tangentially di... | 07/22/1986 |
| 4457409 | Vortex shock absorber with absorbing force relief means A shock absorber is provided with a relief valve within a thrusting piston. The relief valve defines a vortex chamber therein and is movable in response to the pressure difference between a high pressure chamber and a lower pressure chamber. The valve is ... | 07/03/1984 |
| 4323991 | Fluidic mud pulser A liquid telemetry system is disclosed useful for transmitting data through a fluid body by means of pulses in the fluid. To generate the pulses in the fluid the system utilizes a bi-stable fluid amplifier in conjunction with a vortex valve. Control input... | 04/06/1982 |
| 4241877 | Stable vortex generating device Exceptional atomization of liquids is achieved by combining shock wave formation and vortex generation in a gas stream. In a vortex generating device, a flow passage is aligned with a flow axis connected between a fluid inlet and a fluid outlet, and a plu... | 12/30/1980 |
| 4206783 | Vortex chamber valve A substantially funnel-shaped vortex chamber valve having a longitudinal axis assuming an angle to the vertical which is greater than 30°, having at least one substantially tangential inlet nozzle disposed in the vicinity of the lowest point of the large... | 06/10/1980 |
| 4197869 | Method and apparatus for generating a stable vortex fluid flow pattern A method and apparatus produces an unrestrained vortical fluid flow pattern which is self limiting in diameter and remains stable in persistence throughout varying conditions of velocity, density, and temperature of the fluid.... | 04/15/1980 |
| 4192465 | Vortex generating device with external flow interrupting body A vortex is formed in fluid flowing through a flow passage from the inlet of the passage to its outlet. A bluff body is disposed at the outlet external to the passage to interrupt vortically flowing fluid. In one embodiment, the bluff body, which could co... | 03/11/1980 |
| 4190203 | Vortex generating device with resonator A vortex is formed in fluid flowing through a flow passage from the inlet of the passage to its outlet. A resonator is disposed at the outlet external to the passage to intercept fluid flowing vortically through the passage. A bluff body lies between the ... | 02/26/1980 |
| 4189101 | Stable vortex generating device A flow passage having a restriction is connected between a fluid inlet and outlet. A bluff body such as a frustum or disc is disposed in the flow passage between the inlet and the restriction. The inlet is transverse to the axis of the flow passage. The b... | 02/19/1980 |
| 4131134 | Fluid flow regulator A fluid flow regulator controls the amount of fluid flow or pressure of the fluid flowing through the regulator by producing an impedance to flow through the regulator which varies in relationship to the pressure differential across the regulator and whic... | 12/26/1978 |
