Fluid Flow Or Wave Motion Patents (Class 434/126)
  • Patent number: 9905137
    Abstract: Disclosed herein is a hydroplaning debris-flow simulation apparatus which includes an inclined flume provided with a plurality of water permeation units.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: February 27, 2018
    Inventor: Sueng Won Jeong
  • Patent number: 9810042
    Abstract: Various implementations directed to an oil well simulation tool are provided. In one implementation, the oil well simulation tool may include a reservoir tank configured to contain a working fluid, where the working fluid represents a reservoir fluid in a subterranean reservoir. The oil well simulation tool may also include a constant pressure device configured to receive the working fluid from the reservoir tank, where the constant pressure device is configured to maintain a substantially constant pressure within the device. The oil well simulation tool may further include a well tank assembly configured to receive the working fluid from a pipe coupled to the constant pressure device. The oil well simulation tool may additionally include a separator tank configured to receive the working fluid from the well tank assembly and configured to store the working fluid.
    Type: Grant
    Filed: April 16, 2015
    Date of Patent: November 7, 2017
    Assignee: Schlumberger Technology Corporation
    Inventor: Olegario Rivas Romero
  • Patent number: 9483961
    Abstract: The water conservation educational mat includes a water-impermeable and flexible sheet, having opposed top and bottom surfaces, and with a plurality of first openings and a plurality of apertures being formed therethrough. A plurality of flexible reservoirs are respectively received by, and seal, the plurality of first openings. In use, a volume of water may be received within one of the plurality of flexible reservoirs and users may manipulate the water-impermeable and flexible sheet to cause the volume of water to flow from one of the plurality of flexible reservoirs to another one of the plurality of flexible reservoirs. The plurality of apertures serve as obstacles to be avoided during water transfer.
    Type: Grant
    Filed: July 25, 2016
    Date of Patent: November 1, 2016
    Inventor: Ayoub Khaled Alayoub
  • Patent number: 9261869
    Abstract: A pressure and flow calculation technique that efficiently solves for pressures and flows within a process network uses both a simultaneous and a sequential solving method. The calculation technique first determines a flow conductance for each of the process network elements, linearizes pressure and flow relationships in each flow path by determining a linearized flow conductance for each process element and then determines a composite process network having a linearized, composite process component in each flow path to produce a simplified process network. A simultaneous solving method is then used to simultaneously solve for the pressures and flows at each of a set of junction nodes of the simplified process network and thereafter a sequential solving method is applied to determine the pressures and flows at the other nodes of the process network.
    Type: Grant
    Filed: February 13, 2012
    Date of Patent: February 16, 2016
    Inventors: Xu Cheng, Kirt T. Bush
  • Publication number: 20150079550
    Abstract: A hydraulic training system includes a cart, with a fluid reservoir, a motor, a first pump and a second pump situated on the cart. The first and second pumps are in fluid communication with the fluid reservoir and are operatively connected to be driven by the motor. A drivable wheel is rotatably attached to the cart and is selectively connectable to the first pump to drive the wheel. A steering system is selectively connectable to the second pump and arranged to steer a steerable wheel extending from the top of a first planar surface.
    Type: Application
    Filed: June 12, 2014
    Publication date: March 19, 2015
    Inventors: Thomas Evans Blansett, Rodney Bruce Erickson
  • Publication number: 20150072319
    Abstract: A simulation system for marine operator training for operation of a floating oil and gas drilling or production facility or platform, or similar marine facilities. The simulation environment combines a process model with equipment coordinates to calculate center-of-gravity, a ballast and bilge model, an emulation or copy of a field control system, actual Distributed Control System (DCS) operator screens, and a load management advisory program.
    Type: Application
    Filed: August 18, 2014
    Publication date: March 12, 2015
  • Patent number: 8967173
    Abstract: A system and methods for reducing pressure in an enclosed volume is disclosed. A first quantity of steam is inserted into a condensation chamber, and the first quantity of steam is substantially condensed in the condensation chamber. A first quantity of air is extracted from an enclosed volume into the condensation chamber.
    Type: Grant
    Filed: August 24, 2011
    Date of Patent: March 3, 2015
    Assignee: The Boeing Company
    Inventors: Chao-Hsin Lin, Raymond H. Horstman
  • Publication number: 20130052615
    Abstract: A system and methods for reducing pressure in an enclosed volume is disclosed. A first quantity of steam is inserted into a condensation chamber, and the first quantity of steam is substantially condensed in the condensation chamber. A first quantity of air is extracted from an enclosed volume into the condensation chamber.
    Type: Application
    Filed: August 24, 2011
    Publication date: February 28, 2013
    Inventors: Chao-Hsin Lin, Raymond H. Horstman
  • Patent number: 8342846
    Abstract: A Braille writing device capable of processing information, comprises a motherboard (10) including a plurality of Braille cells (11) arranged in rows and columns, each cell consists of six dot-shaped recesses or pinholes, a sub-board (20) is configured to be inserted into a flute (12) being provided at each of left and right margins of the motherboard and moveable along the flute, a plurality of marks (13) are provided on an outer surface of the flutes (12), and a detent member (30) is formed between each two of the marks (13) in the inner side of the flute (12) and configured to prevent the moveable sub-board from being moved during writing. A Braille information processor (40) is fixed on a concave formed on the backside of the motherboard (10), comprising a circuit board (41), a central processing unit (42), a plurality of Braille trigger switch groups (44) each of which consists of six trigger switches (43), and an infrared transmitter (45).
    Type: Grant
    Filed: February 21, 2006
    Date of Patent: January 1, 2013
    Assignee: Shenzhen Wang Ling Science and Technology Development Co., Ltd.
    Inventor: Yimwai Yau
  • Patent number: 8147249
    Abstract: A display mechanism for illustrating fluid dynamics includes a water basin having a base and a mass of water with a water surface within the basin. A waterwheel is supported within the basin. The waterwheel includes a plurality of pump tools equally spaced about the waterwheel and adapted to fill with water on one side of the waterwheel and to open on the other side of the waterwheel. Each of the pump tools includes three upwardly extending inner pipes. The plurality of pump tools are arranged to contact two outer pipes and are adapted to fill with water on one side of the water wheel.
    Type: Grant
    Filed: May 20, 2010
    Date of Patent: April 3, 2012
    Inventor: Neda Alanezi
  • Publication number: 20110311951
    Abstract: A device and method for generating a visible vortex for display or educational purposes is disclosed. A container houses a two-phase fluidic system of a primary fluid, such as water, and a secondary fluid such as silicone fluid carrying a powder which has no affinity for the primary fluid. The two-phase fluidic system may be stirred using a stir bar or pump to general the vortex.
    Type: Application
    Filed: March 10, 2011
    Publication date: December 22, 2011
    Inventor: Robert F. Piontek
  • Patent number: 8055490
    Abstract: A new constrained interpolation profile method, which is stable and accurate but requires less amount of computation, is provided. CIP is a high-order fluid advection solver that can reproduce rich details of fluids. It has third-order accuracy but its computation is performed over a compact stencil. A novel modification of the original CIP method that fixes all of the above problems without increasing the computational load or reducing the accuracy is provided. The proposed method brings significant improvements in both accuracy and speed.
    Type: Grant
    Filed: March 31, 2009
    Date of Patent: November 8, 2011
    Assignee: Seoul National University
    Inventors: Doyub Kim, Oh-Young Song, Hyeong-Seok Ko
  • Patent number: 7996195
    Abstract: A method is provided for predicting thermal energy transfer from an entrained particle to a wall surface, the entrained particle being incorporated within a computational fluid dynamics (CFD) model of a flow scenario. Initially, the method generates grid geometry for the CFD model to form a plurality of finite element cells; and establishes initial and boundary conditions for the flow scenario. The model determines a characteristic particle size of the entrained particle; inserts the particle into a cell at an initial location; initializes physical conditions of the particle as a particle state; and calculates a time-step based on characteristic cell size and flow velocity. The model integrates state change in the particle state over the time-step in the cell; and computes collision effect in response to the particle crossing a face of the cell. After convergence, the model quantifies energy flux to the wall surface from impingement by the particle.
    Type: Grant
    Filed: September 24, 2008
    Date of Patent: August 9, 2011
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Joseph M. Plaia, Luis C. Gominho, Keith M. DeLoach
  • Publication number: 20110132824
    Abstract: The system comprises one or more of the following: primary treatment units, flexible pipes, and optionally, one or more pumps. The system is designed and installed in a manner that enables the flow of liquid to be predominantly due to gravity, although one or more pumps may optionally be included at key positions. The system can be sealed and pressure tested in order for optimal performance to be achieved during operation.
    Type: Application
    Filed: December 3, 2010
    Publication date: June 9, 2011
    Applicant: Clearford Industries Inc.
    Inventors: Richard W. Connelly, Duane Smith
  • Publication number: 20110065068
    Abstract: A point-of-sale multi-directional wind simulator will allow customers to evaluate the aerodynamic properties of active eyewear prior to purchase. The invention is configurable in stand-up and countertop configurations. The device will be positioned at or near the point-of-sale of eyewear counters/displays. The invention will allow customers to assess the effectiveness of their potential eyewear purchase by simulating the air/wind flow commonly experienced on bicycles, boating, motorcycles, skiing, etc.
    Type: Application
    Filed: September 11, 2009
    Publication date: March 17, 2011
    Inventors: Jody Lane Grose, Matthew Graham Holland
  • Patent number: 7905728
    Abstract: A device and method for generating a visible vortex for display or educational purposes. A container houses a two-phase fluidic system of a primary fluid, such as water, and a secondary fluid such as silicone fluid carrying a powder which has no affinity for the primary fluid. The two-phase fluidic system may be stirred using a stir bar or pump to generate the vortex.
    Type: Grant
    Filed: October 5, 2007
    Date of Patent: March 15, 2011
    Assignee: Twister Tube, Ltd.
    Inventor: Robert P. Piontek
  • Patent number: 7403879
    Abstract: The invention relates to the modelling of the interactions between an incident wave and an obstacle, in particular in the area of nondestructive testing. According to the invention, the surface of the obstacle is meshed and at least one source (Si) is allocated to each surface element (dSi). Boundary conditions are then calculated at each mesh cell of the obstacle and source values are deduced therefrom. On the basis of an interaction matrix and of these source values, a physical quantity representative of the interaction between the wave and the obstacle is estimated at any point of space.
    Type: Grant
    Filed: November 6, 2003
    Date of Patent: July 22, 2008
    Assignees: Centre National de la Recherche Scientifique - CNRS, Universite Paris SUD, University of Arizona
    Inventors: Dominique Marc Placko, Nicolas Liebeaux, Tribikram Kundu
  • Publication number: 20080155892
    Abstract: An irrigation kit comprising a set of irrigation elements adapted for construction of an irrigation system dedicated to a certain manner of growing plants and an educational media adapted to be understood by children, which includes instructions to assemble the irrigation elements to construct the irrigation system. Each such kit is adapted for irrigation of plants to be grown in different manners (e.g. in a field, a garden or a pot, etc.) and it comprises an appropriate set of irrigation elements for construction of an irrigation system therefor.
    Type: Application
    Filed: November 26, 2007
    Publication date: July 3, 2008
    Inventors: Alon Katzir-Shimoni, Daniel Feinberg, Gil Feldman
  • Patent number: 7353693
    Abstract: In the evaluation apparatus of the present invention, there are formed a plurality of minute channels having a cross-sectional area of not more than 1 mm2, one end of each of these channels joins in at a single meeting point and, when liquids are put into one or more of the liquid reservoirs in a higher position over any other liquid reservoir, the liquids flow down in the channels by gravity. Therefore, a scientific phenomenon, such as the diffusion of molecules, can be qualitatively observed. Furthermore, the apparatus provides a sufficient level of accuracy to enable the user to watch various phenomena involved in advanced technology, and uses no large quantity of chemicals or the like, which means little load on the environment.
    Type: Grant
    Filed: August 31, 2005
    Date of Patent: April 8, 2008
    Assignee: FUJIFILM Corporation
    Inventor: Tomohide Ueyama
  • Patent number: 6957960
    Abstract: A kit for demonstrating Archimedes' principle, comprising a tub having an overflow spout, such that when fluid reaches the overflow spout, all additional fluid added to the tub will flow out the overflow spout; and a stable boat sized to float in the tub without touching the sides of the tub. The kit may further comprise a balance beam which can balance a tub edge, wherein one end of the balance beam has an attachment mechanism for attaching a counter weight, and the other end has an attachment mechanism for attaching a sample weight, such that when the sample weight is attached, and the balance beam is balancing on the tub edge, the sample weight will be submerged in the fluid. There is also a method for using this kit to demonstrate Archimedes' principle both for the buoyancy of a floating body, and the buoyancy for objects that don't float.
    Type: Grant
    Filed: March 1, 2004
    Date of Patent: October 25, 2005
    Inventor: Richard R. Lewellen
  • Patent number: 6607418
    Abstract: A discovery toy/play feature apparatus, for use with water and sand, or other particulate or granular material is provided. The apparatus allows the user to play in both sand and water in such a way as to learn and discover physical and engineering principles while having fun. The play feature apparatus allows the user to bury objects in the sand and play as if the user was on a beach looking for shells or to play as if the user was an archeologist. Further the user is allowed to use the varying channels and pools to make dams and other water obstructions and learn fluid mechanics and engineering principles while having fun.
    Type: Grant
    Filed: July 5, 2001
    Date of Patent: August 19, 2003
    Assignee: Playcore Wisconsin, Inc.
    Inventor: Brian Henry
  • Patent number: 6561810
    Abstract: An apparatus for teaching a child about basic fluid piping systems comprises a kit having a plurality of pipes and pipe fittings, and a media embodying element, all of which are packaged together for sale. The pipes and pipe fittings come in a variety of shapes, sizes and types and are adapted to be interconnected with one another to form a variety of operable fluid piping systems. The media embodying element includes media that conveys information in a form that can be comprehended by children about the manner in which the pipes and pipe fittings may be interconnected with one another to form various fluid piping systems, which are adapted for connection to a water source for operating the fluid piping systems.
    Type: Grant
    Filed: April 26, 2000
    Date of Patent: May 13, 2003
    Inventors: Thomas P. Schellhardt, Timothy M. Schellhardt
  • Patent number: 6059574
    Abstract: A trainer for teaching the operation of aircraft fuel systems comprised of a fuselage frame portion and fuel tanks mounted to a platform. The trainer utilizes a fuel look-alike with a viscosity below 2.8 cs and a flashpoint above 200.degree. F.
    Type: Grant
    Filed: June 11, 1998
    Date of Patent: May 9, 2000
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Charles J. Wharton, Jeffrey E. Hunt
  • Patent number: 6039570
    Abstract: A hydraulic demonstration apparatus is disclosed having a hydraulic system including a reservoir, an inlet line and an outlet line. A valve at the inlet line is included for introducing air so as to create aeration in the hydraulic system. A restricting valve is provided at the inlet line for creating cavitation in the hydraulic system. A hydraulic pump is provided having a clear cover for observing the effects of aeration and cavitation inside the pump. A flow meter having a clear housing is provided for observing the air in the system and the reduction of pump efficiency caused by aeration. The demonstration apparatus can be mounted on a movable cart.
    Type: Grant
    Filed: January 8, 1998
    Date of Patent: March 21, 2000
    Assignee: Aeroquip Vickers, Inc.
    Inventors: Frank Garner, Joseph Klamecki
  • Patent number: 5971764
    Abstract: The invention comprises a container having sidewalls and a bottom; a rigid cover having integrally molded or detachable features simulating natural or manmade topographical features such as riverbeds, mountains, islands, whirlpools, and various rock and stone shapes. In accordance with the invention, the cover is detachably secured to the sidewalls of the container.
    Type: Grant
    Filed: November 5, 1997
    Date of Patent: October 26, 1999
    Assignee: Environments, Inc.
    Inventor: Mary Y. Todd
  • Patent number: 5946968
    Abstract: A swing mechanism for wave-producing ornament. The ornament includes a base and a liquid container and the swing mechanism is mounted inside the base with a top container holder projecting from the base to fixedly connect the liquid container thereto. The swing mechanism includes a round disc which is rotated by a motor in the base of the ornament, a connecting rod pivotally connected to the round disc near an outer periphery thereof, and a sleeve defining a downward open cylindrical inner space with a narrowed lower end for an upper half part of the connecting rod to extend into. The upper half part of the connecting rod are two upward extended arms which slide up and down in the cylindrical inner space like a piston. When the round disc is rotated, the connecting rod moves in circumferential movement, bringing the sleeve and accordingly the liquid container fixedly connected to a top of the sleeve to swing relative to the base of the ornament.
    Type: Grant
    Filed: January 21, 1998
    Date of Patent: September 7, 1999
    Inventor: Vincent Kuo Wei Lee
  • Patent number: 5855481
    Abstract: An educational amusement device imitates a canal, such as the Panama Canal. The device includes a base having a first water impermeable pan therein. An imitation terrain structure includes three dimensional forms extending upward from a top edge of the pan, and at least one further water impermeable pan therein. The first pan and the further pan are respectively connected to at least one connecting conduit lock to vary water depth between the first pan and the further pan, such as a fluid volume regulating one lock gate openable from a lowered closed position to a raised open position. The connecting conduit lock is in fluid flow communication between the first pan and the further pan. The base includes a bottom floor and a plurality of interconnected upwardly extending walls. One of the walls is a vertically extending transparent proximal wall providing a visual viewing image of respective interiors of the first pan, the further pan and the connecting conduit lock.
    Type: Grant
    Filed: July 8, 1997
    Date of Patent: January 5, 1999
    Inventor: Ruth Weichselbaum
  • Patent number: 5788506
    Abstract: An apparatus for displaying a pattern of a magnetic field is provided, comprising a container, a solution within said container having a plurality of magnetic particles, suspended within the solution, that align with a magnetic field in the vicinity of the container, the magnetic particles causing the solution to flow as the particles move into alignment with the magnetic field, and a plurality of flow indicator particles, suspended within the solution so that the flow of the solution in response to the movement of the magnetic particles is displayed. A method for displaying a pattern of a magnetic field and a mixture for use in an apparatus for displaying a pattern of a magnetic field are also disclosed.
    Type: Grant
    Filed: October 24, 1996
    Date of Patent: August 4, 1998
    Assignee: The New Curiosity Shop
    Inventor: Ilan S. Chabay
  • Patent number: 5706595
    Abstract: A wave-producing decoration including an elongated liquid container which has an outwardly and downwardly projecting bubble collector integrally formed at a bottom center. The bubble collector communicates with the liquid container and collects any possible bubbles in the container. In addition, the bubble collector has a shape suitable for engaging a seat member partially exposed from a support member of the decoration, such that the liquid container may laterally sway with the pivoting seat member, causing liquid in the container to flow in waves.
    Type: Grant
    Filed: January 23, 1996
    Date of Patent: January 13, 1998
    Inventor: Rich Lin
  • Patent number: 5653592
    Abstract: Apparatus for modeling the sediment transport characteristics of a selected ection of a river or the like includes an elevated inclined platform adapted to receive an insert representing a scaled model of the section of river to be studied and a water source for delivering water containing a simulated sediment to the model. As the water flows over the model, the sediment is transported so as to simulate the sedimentary characteristics of the modeled portion of the river. The apparatus is provided with a function generator which allows the water to be delivered to the model in accordance with a specified hydrograph and is also provided with a sliding digital micrometer survey system which allows accurate surveys to be taken at selected increments along the model. Method for modeling the sediment transport characteristics of a river is also described.
    Type: Grant
    Filed: November 8, 1995
    Date of Patent: August 5, 1997
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventor: Robert D. Davinroy
  • Patent number: 5609405
    Abstract: A portable water containing tray that uses various mediums to demonstrate and/or experiment with liquid and gas flow dynamics. It is designed to be compatible with overhead projection and contains a transparent activity area, fluid transport system, and activity components that when placed on an overhead projector allows light transmission through various liquid and/or solid object components. Fluids are recycled on the activity area by a pumping device. Various liquid dye and solid object components are placed on the activity area to simulate real-world events or environments. Solid activity components have a variety of internal and/or external flow configurations for creating a multitude of flow characteristics.
    Type: Grant
    Filed: August 21, 1995
    Date of Patent: March 11, 1997
    Inventor: Dennis J. Dougherty
  • Patent number: 5519809
    Abstract: A computer-aided geographic system highlights a specified area of a map based on operator input. In a preferred embodiment, a voice recognition system receives the operator input in voice form and determines the area to be highlighted. In the preferred form, the map used is a globe, and computerized controls turn and tilt the globe in response to the voice command so that one or more spotlights inside the globe illuminate the area of interest. Information related to the geographic location selected may be retrieved and simultaneously displayed on a computer monitor, video screen, slide screen, and/or narrated by synthesized voice.
    Type: Grant
    Filed: May 22, 1995
    Date of Patent: May 21, 1996
    Assignee: Technology International Incorporated
    Inventors: Abdo A. Husseiny, Jane Y. Murdock, Nancy G. O'Brien, Edwin D. Stevens
  • Patent number: 5480336
    Abstract: A water toy construction kit includes a plurality of elongate tubular elements and mating connectors, which elements and connectors provide for the flow of water therethrough. The kit may include rigid and/or flexible elements, and the elements may be opaque, translucent, and/or transparent. At least some of the elements may include radial passages therethrough, either in line or randomly spaced, to provide for the spray of water therethrough. Transparent or translucent tubes may include solid articles therein, which provide movement due to water flow through the tubes. The connectors may include shutoff valves therein to provide for the selective control of water flow through the individual tubes connected thereto. At least one separate element may be provided, which is actuated by free water flow from the remaining structure.
    Type: Grant
    Filed: December 14, 1994
    Date of Patent: January 2, 1996
    Inventor: Cheri A. Blanchard
  • Patent number: 5385472
    Abstract: A educational water toy designed for mounting on a vertical surface, such as a bathtub wall, is disclosed. It consists of a variety of interlocking parts which can be arranged in various sequences. The various parts are designed to conduct water; control, or respond to, water flow; or to attach other parts to the vertical surface. The fluid-conveying and -operated toy has a reservoir, at least one activity component, a fluid conduit which provides fluid communication between the reservoir and the activity component, with the activity component being placed into motion by fluid exiting from the conduit, coupling structures interconnect the components in fluid communication, and attaching devices for removably attaching the components to the vertical surface in an orientation such that the fluid flows along the fluid flow path under the force of gravity. The various activity components may include a paddle wheel, a turbine, an hourglass member, a dipper, a sprayer and a squirter.
    Type: Grant
    Filed: July 26, 1993
    Date of Patent: January 31, 1995
    Inventor: Keith A. Mullin
  • Patent number: 5372508
    Abstract: A training device for the graphic representation of the fluidic processes and functions for basic and advanced fluidics training, with an essentially vertically oriented panel, on which fluidic practice devices are mounted in a systematic arrangement and are controllable by means of directly or indirectly operated directional valves through permanently installed tube connections to create various functional flow path patterns, is improved upon with regard to its handling characteristics and its instructional utility. Toward this end it is provided that each practice device is coupled with a movable symbol plate (12) on the face of which the flow-path alternatives (13) of the practice device are indicated, and that the movement of the symbol plate (12) is directly translatable into the hydraulic loading of the practice device.
    Type: Grant
    Filed: April 5, 1993
    Date of Patent: December 13, 1994
    Assignee: Parker Hannfin NMF GmbH
    Inventor: Manfred Hautzenroder
  • Patent number: 5354203
    Abstract: Apparatus for training an operator in use of hydraulic and electrohydraulic fluid power systems that includes a vertical panel upstanding from a wheeled base. A first plurality of electrohydraulic devices are mounted on one side of the panel, and second plurality of hydromechanical devices are mounted on the opposing side of the panel. Both of the device pluralities include fluid flow control valves that are distinct from each other between the respective pluralities, and fluid load devices such as rotary hydraulic motors and linear hydraulic cylinders that are shared by the respective pluralities. A fluid power source is carried by the base, as are a multiplicity of hoses for connecting the fluid power source to the devices among either or both of the first and second pluralities. Thus, a hydromechanical trainer and an electrohydraulic trainer are provided in a single device with shared components for loading the valves of the respective training sections, which may be used simultaneously.
    Type: Grant
    Filed: July 23, 1993
    Date of Patent: October 11, 1994
    Assignee: Vickers, Incorporated
    Inventors: Richard J. Kotch, John A. O'Brien
  • Patent number: 5299938
    Abstract: An apparatus for illustrating the operation of an Archimedes screw. Two passages (8,9) are defined which together form a single closed loop passageway. A first passage (8) is generally linear and a second passage (9) is of helical form and is connected at its ends to the ends of the first passage. The walls of the two passages are transparent such that the movement of fluid (10) can be clearly seen. The first and second passages are arranged such that if the first passage (8) is positioned at a predetermined inclination to the vertical fluid can be transferred through the second passage (9) from the lower to the upper end of the first passage by rotating the apparatus about an axis extending parallel to the length of the first passage. The second passage (9) may be in the form of a helical tube wound around the outside of a straight tube defining the first passage (8) .
    Type: Grant
    Filed: September 30, 1992
    Date of Patent: April 5, 1994
    Inventor: Barry S. Waltho
  • Patent number: 5277585
    Abstract: A topographical model simulates mountains having stream beds, a river valley, a dam creating a lake therebehind, and a cultivated field. A chamber formed in the top of the mountain is charged with ice, which melts and escapes to the stream bed. A diverter selectively directs this water to the lake or to a dry side of the mountain, thus influencing water level of the lake and the river. The dam includes a simulated hydroelectric generator and a simulated irrigation system delivering water from the lake to the cultivated field. A secondary dam is provided to trap spillage from the main dam. A trench and optional surface screen protect the lake from floating or submerged debris. The model thus demonstrates that portion of a natural water cycle originating with snow melting on mountains, and exploitation of water resources to generate power and to irrigate a cultivated field.
    Type: Grant
    Filed: April 16, 1993
    Date of Patent: January 11, 1994
    Inventor: Alinaghi Aminighazvini
  • Patent number: 5178543
    Abstract: A trainer, mounted and housed within a mobile console, is used to teach and reinforce fluid principles to students. The system trainer has two centrifugal pumps, each driven by a corresponding two-speed electric motor. The motors are controlled by motor controllers for operating the pumps to circulate the fluid stored within a supply tank through a closed system. The pumps may be connected in series or in parallel. A number of valves are also included within the system to effect different flow paths for the fluid. In addition, temperature and pressure sensing instruments are installed throughout the closed system for measuring the characteristics of the fluid, as it passes through the different valves and pumps. These measurements are indicated on a front panel mounted to the console, as a teaching aid, to allow the students to observe the characteristics of the system.
    Type: Grant
    Filed: April 30, 1991
    Date of Patent: January 12, 1993
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: Joseph P. Semans, Peter G. Johnson, Robert F. LeBoeuf, Jr., Joseph A. Kromka, Ronald H. Goron, George D. Hay
  • Patent number: 5049080
    Abstract: A chaos waterwheel teaching device is provided for demonstrating and illustrating to students that random appearing phenomena occurring in natural systems such as biological, chemical, physical, and mathematical may actually reflect the action of simple underlying non-random processes or deterministic systems that illustrate basic concepts of dynamics and chaos theory. A dual wheel device is provided in which one wheel is driven by a stream of water and the other wheel acts as a brake, resisting the rotation created by the first wheel by dragging a series of vanes through a water bath. The operation of the device can be varied and controlled by varying one or the other of the parameters, including the water level in the braking compartment to cause different states of operation, namely periodic or chaotic.
    Type: Grant
    Filed: July 19, 1990
    Date of Patent: September 17, 1991
    Assignee: Kriebel and Holsapple, Inc.
    Inventors: Mahlon E. Kriebel, James W. Holsapple
  • Patent number: 4756692
    Abstract: An apparatus for primarily aiding in teaching born-again Christian religious beliefs includes a base and a hollow structure mounted in upstanding fashion on the base. The structure has a closed bottom, open top, and sidewall with spaced-apart upper and lower opaque wall sections and a middle transparent wall section. The structure defines a chamber representing a person's body. Liquid contained in the chamber represents the person's spirit and its color represents the state of the person's spirit. A pair of valves are respectively mounted to the base and structure. One valve communicates with the chamber bottom and is operable to drain liquid therefrom, representing the death of the person's spirit. The other valve communicates with the chamber middle and is operable to drain portions of the liquid therefrom, displaying the state of the person's spirit.
    Type: Grant
    Filed: September 15, 1987
    Date of Patent: July 12, 1988
    Inventor: Leslie J. Pranger
  • Patent number: 4667427
    Abstract: An assembly of a display panel and a mounting base for a plurality of light-emitting elements. The mounting base is adjacent to one side of the display panel, and the display panel has a plurality of light-transmitting apertures, holes or openings representing at least two different fluid flow paths and specific fluid devices, such as valves and fluid containing cylinders. A microprocessor is used to control the operation of voltage sources coupled to the light-emitting elements so that, by selectively actuating a first set of light-emitting elements, a visual representation of a first fluid flow path can be provided to indicate the flow of a first gas from one location to another. Alternately, the assembly can be operated such that a second fluid flow path can be visually represented while the light elements of the first path are deactuated.
    Type: Grant
    Filed: September 13, 1985
    Date of Patent: May 26, 1987
    Assignee: Process and Cryogenic Services, Inc.
    Inventor: Thomas S. Been
  • Patent number: 4571191
    Abstract: A method and apparatus for teaching physical principles of fluid flow and the mathematical principles of integration by concrete, measurable examples comprised the use of a plurality of teaching funnels each capable of being supported by a mounting mechanism in a stable position over a receptacle. Each funnel has perimetric sidewalls with interior surfaces that conform to equations that will provide an integrable function when plugged into the equation for computing the time it takes for the funnel to empty of liquid. The funnels can have a base covering the lower end of the funnel with an outlet orifice formed in the base. The orifice is spaced a predetermined distance away from the sidewalls to achieve a desired outflow rate. The different sidewalls can be formed of different shapes as long as each conforms with a formula that yields an integrable function when plugged into the equation for computing the time it takes for the funnel to empty of liquid.
    Type: Grant
    Filed: July 19, 1984
    Date of Patent: February 18, 1986
    Inventor: Peteris E. Graube
  • Patent number: 4406162
    Abstract: An apparatus for creating surface waves in a body of liquid is disclosed which comprises a liquid displacer, a motor and a linear actuator for imparting movement to the displacer, and a level sensing device cooperating with the liquid displacer to control liquid level through control of wave generation.The present apparatus is able to adjust liquid activity to accommodate extraneous wave patterns, and to thereby more accurately control the exact wave patterns generated. The present apparatus is useful for performing wave testing to simulate aquatic conditions for ships, oil rigs and harbor installations.
    Type: Grant
    Filed: July 2, 1981
    Date of Patent: September 27, 1983
    Assignee: Seasom Controls Limited
    Inventor: William B. Hark
  • Patent number: RE32950
    Abstract: A method and apparatus for teaching physical principles of fluid flow and .[.the.]. mathematical principles .[.of.]..Iadd., such as .Iaddend.integration.Iadd., .Iaddend.by concrete, measurable examples comprised the use of a plurality of teaching funnels each capable of being supported by a mounting mechanism in a stable position over a receptacle. Each funnel has perimetric sidewalls with interior surfaces that conform to equations that will .Iadd.allow various flow characteristics to be computed, and in preferred embodiments will .Iaddend.provide an integrable function when plugged into the equation for computing the time it takes for the funnel to empty of liquid. The funnels can have a base covering the lower end of the funnel with an outlet orifice formed in the base. The orifice is spaced a predetermined distance away from the sidewalls to achieve a desired outflow rate. The different sidewalls can be formed of different shapes as long as each conforms with a formula that .[.yields an.]. .Iadd.
    Type: Grant
    Filed: February 10, 1988
    Date of Patent: June 13, 1989
    Inventor: Peteris E. Graube