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Reward Candy Dispenser for Personal Computers
A personal computer peripheral, battery powered reward candy dispenser which immediately presents students with a single candy for each problem completed correctly.
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| Number | Title | Issue Date |
| 7190247 | System and method for reducing effect of magnetic fields on a magnetic transducer An electromagnetic driver transducer free of torque in the presence of an external magnetic field, of any direction and orientation (such as in a Magnetic Resonance Imaging environment). The transducer includes a housing. At least one coil is associated with the hou... | 03/13/2007 |
| 7140254 | Apparatus for generating and measuring bending vibration in a non-ferromagnetic pipe without physical contact An apparatus for generating and measuring bending vibration in a pipe buried underground or a pipe covered by insulating materials is disclosed. There is provided an apparatus for generating and measuring bending vibration in a non-ferromagnetic pipe without physica... | 11/28/2006 |
| 7107159 | Systems and methods to determine elastic properties of materials The present invention provides systems and methods to used a measured driving-point response of a nonlinear material to determined one or more elastic properties of the material. The present invention takes advantage of the full information represented by the transi... | 09/12/2006 |
| 6868330 | Method of setting the knock detection sensor of a piston engine A method of operating a knock detection system of a multi-cylinder piston engine in which the knock detection system comprises a sensor arranged in connection with each cylinder and a measurement circuit connected to the sensor includes running the engine at a load ... | 03/15/2005 |
| 5414397 | Clamping device for magnetostrictive bodies The invention relates to an elastic clamping device for at least one body with magnetostrictive properties, wherein a pressure force presses the clamping device against the inner magnetostrictive body with a predetermined force. The pressure force extends... | 05/09/1995 |
| 5205296 | Uterine contraction detection A system for tracing uterine contraction is disclosed. The system comprises a probe and an electronics module. The electronics module includes a drive circuit and an output section having a frequency counter. The output section also includes a strip-chart... | 04/27/1993 |
| 5168879 | Uterine contraction detection A system for tracing uterine contraction is disclosed. The system comprises a probe and an electronics module. The electronics module includes a drive circuit and an output section having a frequency counter. The output section also includes a strip-chart... | 12/08/1992 |
| 5161521 | Oscillation degree measuring apparatus An oscillation degree measuring apparatus measures the fixing state of an object to be measured as a numerical value of the degree of oscillation and comprises an ultrasonic exciter for generating ultrasonic waves which shock the object and exciting oscil... | 11/10/1992 |
| 5024095 | Diagnostic locator for mechanically malfunctioning electronic circuitry A method of diagnosis utilizing a diagnostic locator for detecting sources of electronic circuit malfunction caused by fractured solder connections or other kinetically locatable electronic circuit malfunctions comprises a diagnostic locator using kinetic... | 06/18/1991 |
| 4879905 | Apparatus for measuring the internal friction of a tranversely vibrating metal specimen A measuring apparatus is provided for measuring the internal friction of a transversely vibrating metal specimen at various operation temperatures. The measuring apparatus includes a container body mounted on a machine table and having an open upper end, ... | 11/14/1989 |
| 4204422 | Pressure measuring device A pressure measuring device comprises a main solenoid valve of which a first opening is connected to a pipe through which a fluid to be measured flows and of which a second opening is connected to a pressure transducer. A third opening of the main solenoi... | 05/27/1980 |
