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| Number | Title | Issue Date |
| 7963771 | Experiment and education system employing a plurality of units When a mechanism constituent unit having a base is secured to a magnetic base at a predetermined position, a fixture having a detachable mechanism inside itself is employed, and the fixture is disposed on a notch of the base of the mechanism constituent unit in a no... | 06/21/2011 |
| 7430038 | Apparatus for enhancing visualization of mechanical stress Photoelastic elements are formed deliberately with stress concentrations so that, when evaluated with a polariscope, more pronounced isochromatic bands or fringes result when loads are applied to these elements or to assemblies of these elements. A toy for producing... | 09/30/2008 |
| 7338287 | Systems and methods for searching for and delivering solutions to specific problems and problem types Methods and systems for providing a solution to a given problem comprising the steps of receiving a request for a solution to a known problem, accessing a first set of data comprising a plurality of template solutions to problems, accessing a second set of data comp... | 03/04/2008 |
| 7266469 | Method and article of manufacture for determining a rate of change of orientation of a plurality of fibers disposed in a fluid A method and an article of manufacture for determining a rate of change of orientation of a plurality of fibers disposed in a fluid are provided. The method includes determining a first tensor indicative of the rate of change of orientation of the plurality of fiber... | 09/04/2007 |
| 7024288 | Method for generating rocket motor data profiles for firings at various temperatures A method for generating predictions of rocket motor ballistic performance at specific firing temperatures and for generating data profiles for analysis. The method requires generally available specifications for the rocket motor to be tested and test data from one o... | 04/04/2006 |
| 6971880 | Deformable drawing tablet A deformable drawing tablet in which contiguous longitudinal edge portions of a stack of individual elongate strips which are confined for relative sliding movement to form a drawing surface. A user can shift individual strips longitudinally to deform the drawing su... | 12/06/2005 |
| 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 |
| 6957960 | Method and apparatus kit for demonstrating archimedes' principle 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 tou... | 10/25/2005 |
| 6821124 | Laser frequency modulation tactical training system A laser based tactical engagement simulation training system, and in particular a MILES type system, is characterized by an improved communication code structure for the system. The improved code word structure comprises a standard MILES code word that is modified t... | 11/23/2004 |
| 6773264 | Teaching apparatus for mechanics principles A mechanically propelled apparatus for teaching principles of mechanics. The apparatus includes a drive wheel disposed on a first axis of rotation and a power drum disposed on a second axis of rotation. At least one flexible tensile member transmits energy from a we... | 08/10/2004 |
| 6582234 | Method for demonstrating the inverse square law and apparatus therefor The invention is an educational demonstration designed to help students better understand the concepts of torque and the inverse square law. A variable torque pulley consists of a rigid overlapping spiral shape member and a rigid circular member. The circ... | 06/24/2003 |
| 6561810 | Method and apparatus for teaching children about fluid piping systems 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 ... | 05/13/2003 |
| 6547567 | Bouncing ball apparatus An apparatus has a ball that bounces vertically on a vibrating piston. The system demonstrates the complex dynamics impact systems for education and research in dynamical systems theory and feedback control.... | 04/15/2003 |
| 6478582 | Free rotator demonstrator A spherical free rotator, supported on an air film within an air support. Different weight and density inserts may be positioned within cylindrical holes along diameters by the sphere, so that both symmetric and asymmetric rotation may be demonstrated.... | 11/12/2002 |
| 6443736 | Technology explorer model An instrumented, adjustable, educational, structural model employs novel sensor housings and free-fall, pendulous, and cantilever-beam test objects made of stiff, hard, compressible material, for calibrating accelerometers; for demonstrating behavior-test... | 09/03/2002 |
| 6413100 | System and methods for searching for and delivering solutions to specific problems and problem types Methods and apparatus for providing a solution to a given problem comprising the steps of receiving a request for a solution to a known problem, accessing a first set of data comprising a plurality of template solutions to problems, accessing a second set... | 07/02/2002 |
| 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 |
| 6382982 | Educational tool comprised of selectable optically-linked modules The invention is a teaching tool, intended to elucidate the principles of light and its associated technologies. For several of the embodiments, the optics and components are embedded into sliding or rotating structures, so that the student is able to "sh... | 05/07/2002 |
| 6290505 | Ballistic performance simulator Rocket/Missile flight simulation requires the thrust-versus-time profile of a rocket motor conditioned to a specific temperature. The use of program, preferably carried in an Excel spreadsheet, is disclosed to instantly generate interpolated thrust-versus... | 09/18/2001 |
| 6273727 | Method and apparatus for calculating drug dosages and unit conversions and for teaching how to calculate drug dosages and unit conversions A method and device for determining an appropriate drug dosage, unit conversions and a tutorial device for teaching how to determine a calculated drug dosage and/ unit conversions. The device include a data entry device for entering data; a device for det... | 08/14/2001 |
| 6213781 | Educational game using selective light displacement to teach physical concepts An educational game is disclosed which uses a series of illumination devices which are sequentially illuminated to illustrate to a user a velocity. The user selectively chooses the velocity at which the illumination devices are sequenced and therefore can... | 04/10/2001 |
| 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 |
| 6071165 | Thermal-powered diving device In accordance with the invention, a hollow, gas-containing diving body is disposed in a partially shaded transparent column partially-filled with a clear liquid. The diver is weighted for near-neutral buoyancy. The upper portion of the column is shaded, a... | 06/06/2000 |
| 6016978 | Device for producing a stationary particle cloud in a space particularly at an underpressure The instant device for producing a particle cloud in a space particularly at an underpressure comprises a particle chamber (14) with an accommodating compartment (16) provided to hold particles (18), the particle chamber (14) having an inlet and an outlet... | 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 |
| 6012959 | Thermal- powered rocking device In accordance with the invention, a solar rocking device comprises a pair of chambers coupled by a conduit, which assembly is pivotally mounted on a horizontal axis. Liquid partially fills the lower chamber above the conduit opening, and an absorber facil... | 01/11/2000 |
| 5975911 | Mechanical oscilloscope A device which directly displays a steady state sinusoidal wave by positioning a scrolling pattern of alternating stripes (40 and 42) behind a flexible linear body comprising a vibrating rod (36) or string (50). The stripes (40 and 42) cover the outer sur... | 11/02/1999 |
| 5921781 | 3-dimensional models showing chemical point group symmetry A three-dimensional instructional model used to exhibit and represent specific point groups used in the application of group theory to symmetry operations and molecular structure. A pair of blocks, each have a pair of spaced faces with peripheral side sur... | 07/13/1999 |
| 5915971 | Tutorial device and method for determining drug dosages A tutorial device and method for teaching and learning how to determine a calculated drug dosage and/or unit conversions. The device includes a data entry device for entering data; a device for determining a calculated drug dosage in response to the enter... | 06/29/1999 |
| 5876212 | Apparatuses and kits for teaching mathematics A method and apparatus of teaching mathematical problem solving includes using a series of containers, each consisting of an inherent problem requiring the use of mathematical skills for solution. The series of containers meets all conditions for the teac... | 03/02/1999 |
| 5775917 | Propeller-driven educational vehicle apparatus A propeller-driven educational vehicle for teaching science, mathematics, technology, and research methodology. The educational vehicle includes a body, one pair of wheels at the front end of the body and a second pair of wheels at the front end of the bo... | 07/07/1998 |
| 5772444 | Method and article for teaching the core construction of the singularity motion The invention comprises an article useful in teaching the core construction of the Yin and Yang symbol, as well as various scientific theories. The invention includes a template mechanism useful in practicing the various methods described in the invention... | 06/30/1998 |
| 5720618 | Vacuum teaching device The present invention relates to a vacuum teaching device (10) comprising: a housing (12) which comprises a housing top (12A) having a housing top opening (12AA) therein, a housing bottom (12B) and a housing middle (12C) having a housing middle neck piece... | 02/24/1998 |
| 5273436 | Changeable grid system kit A changeable grid system kit for constructing three-dimensional toy and scale model designs, including a base component fabricated of a tough, resilient material, slots formed in the top face of the base, and slats which are insertable into the slots. The... | 12/28/1993 |
| 5256071 | Multiple-collision accelerator assembly A device comprising several highly elastic objects is presented whose purpose is to demonstrate an unobvious consequence of fundamental laws of physics--the acceleration of an object to high speed by multiple collisions among a series of heavier objects m... | 10/26/1993 |
| 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 |
| 5192212 | Flexible hypresurface orbital model A hypersurface orbital model is presented that orbits a ball on a surface called a hypersurface. A stepper motor drive arrangement, with two-degrees of freedom, is used to change the hypersurface viewed by the ball as a function of time. System control is... | 03/09/1993 |
| 5158462 | Multiple-collision acceleration demonstrator and toy A device comprising several highly elastic objects (for example, steel balls (14)) hanging from a support structure (12) is presented whose purpose is to demonstrate an unobvious consequence of fundamental laws of physics - the acceleration of an object t... | 10/27/1992 |
| 5145378 | Pendulum principle demonstration apparatus A base supports a vertical pivot arm, one end of which supports a pivotal rotation means for a rotation support housing with a plurality of radial connector sockets. One of several pendulum arms can be fitted into each of the radial connector sockets, the... | 09/08/1992 |
| 5137487 | Self-reversing symmetrical body Disclosed is a self-reversing pendular-top formed as a symmetrical solid body of hard rigid material such as acrylic, the configuration being such that the center of gravity is oscillated relative to the geometric center of the pendular-top. The center of... | 08/11/1992 |
