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7559768 |
Modular wearable circuit
A modular wearable circuit suitable for demonstrating basic principles and/or concepts of electronics and electronic components by providing any number of the garments that can cooperate as a set...
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7260906 |
Reverse-rotation displays
Reverse-Rotation Displays produce unexpected motion. They are especially useful for teaching high school and college students principles of the physical sciences. In addition, these Displays can be...
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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...
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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...
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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...
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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...
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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...
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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.
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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...
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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...
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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...
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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...
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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,...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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3748755 |
CIRCUIT BASE MODEL
Principles of electricity, magnetism and electrochemistry, together with more fundamental concepts of scientific method and abstract reasoning, can be taught to children with the aid of simple,...
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3711991 |
MAGNETIC EDUCATIONAL VEHICLE
A magnetic educational vehicle is made of formed plastic and includes at one end a U-shaped recess for accommodating a U-shaped magnet with its legs oriented in the horizontal plane and at the...
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3667137 |
APPARATUS FOR TEACHING ELECTRICAL CONCEPTS
A method of teaching electrical concepts such as voltage, current and resistance by the use of an analogous mechanical model is disclosed in which potential is simulated by releasing a ball from an...
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3664039 |
NOVELTY KEY CHAIN
A novelty key chain which comprises a body of transparent rigid material having a bore in one side thereof in the base of which is disposed a first magnet, and a push button slidably disposed in...
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3663923 |
ELECTRIC CIRCUIT BOARD AND CONNECTORS THEREFOR
An electric circuit board for toy, kit or general use characterized in the provision of a plurality of contact terminals arranged in one or more parallel rows such that each terminal is spaced from...
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3663731 |
APPARATUS FOR MAKING VISIBLE MAGNETIC FIELDS BY MEANS OF IRON FILINGS
An educational apparatus for displaying magnetic fields has a plurality of cells bordering each other in a flat unit with iron fillings therein and at least a transparent upper limiting surface on...
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3651381 |
ELECTRONIC DEVICE USING BLOCK UNITS
An electronic device for constructing various electronic circuits by arranging block units substantially in two dimensions comprising block units, which are of a substantial rectangular plane view...
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3594689 |
BUILDING BLOCK FOR ELECTRICAL OR ELECTRONIC CONSTRUCTION KITS
A building block for electrical or electronic construction kit is formed of a boxlike member having electrical contacts disposed on the outer surface thereof and contains electrical or electronic...
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3548261 |
ARRANGEMENT FOR CONSTRUCTING ELECTRICAL CIRCUITS BY MEANS OF BOARD MOUNTED CONNECTOR PLATES
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3537192 |
APPARATUS FOR DEMONSTRATING PRINCIPLES OF ELECTROMAGNETIC INDUCTION
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3524198 |
MODULAR UNIT FOR MAKING PLUG-IN ELECTRICAL CONNECTIONS
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3513434 |
ELECTRICAL TERMINAL CONNECTOR BLOCK
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3432941 |
DEMONSTRATION OF MAGNETIC PHENOMENA
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3386010 |
Block circuit unit
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3371433 |
Educational galvanoscope stand
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3327409 |
Electrical resonant demonstration apparatus
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3324572 |
Electrical instruction kit and connector therefor
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3216131 |
Magnetostriction teaching device
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3105309 |
Educational devices
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3085177 |
Device for facilitating construction of electrical apparatus
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3081558 |
Static electricity apparatus
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