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| Number | Title | Issue Date |
| 7342337 | Power generating systems A power generating system includes a torque converter system receiving a rotational motion having a first torque from a source and producing a rotational output having a second torque different from the first torque, a transfer system having a first portion coupled ... | 03/11/2008 |
| 7312548 | Torque converter and system using the same A torque converter device comprises a flywheel rotatable about a first axis, the flywheel including a first body portion having a first radius from a circumferential surface and a first radius of curvature, a first plurality of magnets mounted in the first body port... | 12/25/2007 |
| 7285888 | Power generating systems A power generating system includes a torque converter system receiving a rotational motion having a first torque from a source and producing a rotational output having a second torque different from the first torque, a transfer system having a first portion coupled ... | 10/23/2007 |
| 7279819 | Power generating systems A power generating system includes a torque converter system receiving a rotational motion having a first torque from a source and producing a rotational output having a second torque different from the first torque, a transfer system having a first portion coupled ... | 10/09/2007 |
| 7268454 | Power generating systems A power generating system includes a torque converter system receiving a rotational motion having a first torque from a source and producing a rotational output having a second torque different from the first torque, a transfer system having a first portion coupled ... | 09/11/2007 |
| 7233088 | Torque converter and system using the same A torque converter device comprises a flywheel rotatable about a first axis, the flywheel including a first body portion having a first radius from a circumferential surface and a first radius of curvature, a first plurality of magnets mounted in the first body port... | 06/19/2007 |
| 7141859 | Porous gas sensors and method of preparation thereof Devices including conductometric porous silicon gas sensors, methods of fabricating conductometric porous silicon gas sensors, methods of selecting a device, methods of detecting a concentration of a gas, and methods of analyzing data. ... | 11/28/2006 |
| 7132188 | Fuel cells and fuel cell catalysts A direct organic fuel cell includes a formic acid fuel solution having between about 10% and about 95% formic acid. The formic acid is oxidized at an anode. The anode may include a Pt/Pd catalyst that promotes the direct oxidation of the formic acid via a direct rea... | 11/07/2006 |
| 7066778 | Construction kit Construction kit with two- and/or three-dimensional construction elements (1, 9) with magnetic elements (4) in the corners and/or sides and ferromagnetic spheres (11), which can be placed between the magnetic elements (4) of adjacent cons... | 06/27/2006 |
| 7049972 | Lightning strike hazard detector An accurate, fast-acting, wearable lightning strike hazard detector has a plurality of collecting plates for collection of arriving charged particles. The collecting plates are insulated from each other by an insulating mechanism. A connecting mechanism electrically... | 05/23/2006 |
| 6969260 | Technology explorer toy Involving mysterious gravity and mystical energy, an adjustable, instrumented, structural model, incorporating an object suspended from a frame in various ways with flexible line, freely swings, falls, bounces, and vibrates when manually disturbed. Through transfers... | 11/29/2005 |
| 6960087 | NMR teaching method and apparatus An NMR teaching method and apparatus incorporating pieces representative of chemical fragments. Each piece has the number of sides corresponding to the number of bonds present around the central atom. Bonds to hydrogen are curved while bonding sides are flat. The pr... | 11/01/2005 |
| 6910894 | Hands on instruction manual A manual for teaching and/or demonstrating the assembly and/or operation of a transmittable energy circuit, wherein the manual has a base hinged to a plurality of pages for folding the pages over or away from the base, wherein at least one of the pages has conductor... | 06/28/2005 |
| 6773265 | Electronic simulator The device described is an Electronic Simulator for use as a teaching aid. This device uses fluid with suspended particles representing electrons that can be seen flowing through the transparent parts. This hydraulic based teaching aid visually demonstrates electron... | 08/10/2004 |
| 6589683 | Regenerative fuel cell learning kit Educational kit which combines a unitized regenerative fuel cell with a demonstration platform to illustrate the principals of fuel cell use and application. A fuel cell education kit provides valuable exposure to the principals of fuel cell generated ele... | 07/08/2003 |
| 6402521 | Apparatus for demonstrating changes in motion with respect to time An apparatus for demonstrating changes in motion with respect to time. Two arrays of equally spaced photoresistors and light-emitting diodes are placed on two parallel straight line arrays. Rails upon which an object moves are placed parallel to the array... | 06/11/2002 |
| 6152741 | Device for teaching electrostatic principles The invention is a training device for illustrating electrostatic charges. The training device consists of a transparent tube that is capped at each end. Retained within the tube are a plurality of metallic beads. Each bead has a metal skin and a low dens... | 11/28/2000 |
| 6017220 | Magnetic geometric building system A construction kit comprising a plurality of connectable magnetic members having north and south magnetic poles on their opposite faces.... | 01/25/2000 |
| 6015296 | Apparatus for generating nonlinear dynamic chaotic motion An apparatus for generating nonlinear chaotic motion is presented. The apparatus presents a base from which extends a slidable rod that carries a plurality of ring magnets that are deflected by an electromagnet. The base contains an internal power supply ... | 01/18/2000 |
| 5846088 | Teaching appparatus for magnetic torque experiments Teaching apparatus for demonstrating the effect of a magnetic field on a magnetic moment wherein a pair of electromagnet coils produce a uniform and constant magnetic field in a direction substantially perpendicular to the plane of a surface on which the ... | 12/08/1998 |
| 5788506 | Apparatus and method for displaying the flow of a solution in response to the movement of magnetic particles 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 th... | 08/04/1998 |
| 5772445 | Electrostatic meter An apparatus for detecting and measuring disturbances in an electromagnetic field caused by the electrostatic potential of a charged object moving the field includes a DC source, a loop/solenoid coil, and a metering unit. The DC source charges the loop/so... | 06/30/1998 |
| 5742486 | Reusable electronic circuit building set with interchangeable modular components An assembly board with a matrix of depending pegs uniformly spaced on orthogonal intersecting lines with pegs at intersections at half the distance adapted to selectively receive from a set, detachable and reusable electrical components housed in uniforml... | 04/21/1998 |
| 5318302 | Magnetic puzzle A puzzle using two layers of sixteen small, thin, disc type magnets in an upper and lower matrix of 4×4 each, whereby the top layer of revolving magnets are colored in two colors at the north and south pole of the magnets, and are horizontally confined t... | 06/07/1994 |
| 5252552 | Superconductive device and method for demonstrating autorotation Apparatus and method are disclosed for demonstrating autorotation in conjunction with superconductivity. First and second discs constructed of superconductive materials are stacked one on top of the other in an insulated container. A disc-shaped permanant... | 10/12/1993 |
| 5154615 | Educational toy An educational toy for use with children in an age range of about 4 to 12 as a mounting base with an upper surface on which various action modules are mounted. The action modules include a DC power source, and a switch. The action modules can include a nu... | 10/13/1992 |
| 5090643 | Force generating system An artificial gravity generation system consisting of at least one pair of high-voltage electrodes. A plurality of electrodes of alternating polarity may be arranged in a grid pattern to form an artificial gravity mat which may be used in spacecraft. The ... | 02/25/1992 |
| 5008617 | Functional testing of ultra large area, ultra large scale integrated circuits Disclosed is a method of testing ultra large area integrated circuits. The circuit has a plurality of individually addressable elements. The method comprises providing a dispersed chargeable powder with the integrated circuit in proximity to and above the... | 04/16/1991 |
| 5004424 | Apparatus for demonstrating and studying the operation of a fuel cell The apparatus comprises five main components: two catalysed electrodes (1 and 2), and three plastics parts, a top tube (3), a spacer (4) and a bottom tube (5). The apparatus may be partially immersed in a liquid mixture (11) of fuel and electrolyte, e.g. ... | 04/02/1991 |
| 4971562 | Didactic device to aid in understanding and teaching about electromagnetic fields and their effects According to principles of the invention, an educational device is provided for investigating and teaching about electromagnetic fields. The device includes a pair of toroid magnets each having a north pole and a south pole. As is known, a toroid magnet i... | 11/20/1990 |
| 4472145 | Apparatus for teaching electrochemical principles Apparatus for performing electrochemical experiments in a laboratory for teaching the principles thereof is disclosed. The apparatus includes a holder unit, having a plurality of fluid-receiving recesses, and ion-conductive elements or substances, formed ... | 09/18/1984 |
| 4430063 | Electrical machine constructional set An electrical machines constructional set comprises a base plate for mounting a pair of stator elements and including bearing apertures for a rotor shaft and a plurality of coupling holes for magnets or electro-magnets provided with complementary coupling... | 02/07/1984 |
| 4404766 | Magnetic toy A magnetic toy is provided which is capable of teaching basic scientific principles, provides a high degree of challenge to the user in operation and is low in cost. The toy has a plurality of bar magnets rotatably mounted between upper and lower support ... | 09/20/1983 |
| 4364196 | Method of operating ferrous toy The present invention relates to a magnetic toy, and more specifically to a unique procedure which enables an operator to accomplish a series of unusual effects or formations, based on the phenomenon of residual magnetism. The method of the invention is m... | 12/21/1982 |
| 4285158 | Toy for detecting magnetic fields with electrical compass contacts A toy including a housing having a front panel, a compass having a magnetic needle mounted on the panel, a pair of LED's on opposite sides of the compass, a sound alarm on the panel, and an electronic circuit, having a pair of contacts, which energizes on... | 08/25/1981 |
| 4267647 | Apparatus for demonstrating magnetic force An apparatus for demonstrating magnetic force comprises a plurality of disc-shaped rotors angularly displaced from each other on a common shaft and a number of magnets equispaced along the rims of the rotors. Stationary field magnets encircle the rotors i... | 05/19/1981 |
| 4259789 | Simulation technique for generating a sudden open circuit on high current lines A simulated open circuit on high current electrical lines is generated, such that high currents, including transient currents, do not interact with and adversely effect the low current digital computer electronics which control the simulation. A bi-direct... | 04/07/1981 |
| 4068392 | Interaction and relativity cart A vehicle for use as an educational toy to demonstrate elastic interaction and magnetic attraction and repulsion includes a vehicle body and wheels for movably supporting the body. A magnet is supported on the body at one end thereof and an elastic member... | 01/17/1978 |
| 4066920 | Electrostatically chargeable device The disclosure relates to an electrostatically rechargeable device comprising a body having a rubbing end adapted to be rubbed against fabric or other material for electrostatically charging the device. The device is preferably made of teflon and may util... | 01/03/1978 |
