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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 |
| 8115490 | Concentric return and transmitter electrodes for imaging and standoff distances compensation A method of estimating a property of an earth formation penetrated by a borehole includes: disposing into the borehole a sensor having a plurality of return electrodes and at least one transmitter electrode disposed in a concentric arrangement; injecting a first cur... | 02/14/2012 |
| 7928733 | Concentric buttons of different sizes for imaging and standoff correction A method of estimating standoff in a borehole through an earth formation, includes: disposing a sensor including a plurality of return electrodes and at least one transmitter electrode disposed in a concentric arrangement into the borehole; injecting current, I, int... | 04/19/2011 |
| 6147497 | Using electrical impedance tomography to map subsurface hydraulic conductivity The use of Electrical Impedance Tomography (EIT) to map subsurface hydraulic conductivity. EIT can be used to map hydraulic conductivity in the subsurface where measurements of both amplitude and phase are made. Hydraulic conductivity depends on at least ... | 11/14/2000 |
| 4617518 | Method and apparatus for offshore electromagnetic sounding utilizing wavelength effects to determine optimum source and detector positions An improved method and apparatus for electromagnetic surveying of a subterranean earth formation beneath a body of water. An electric dipole current source is towed from a survey vessel in a body of water substantially parallel to the surface of the body ... | 10/14/1986 |
| 4616184 | CSAMT method for determining depth and shape of a sub-surface conductive object The depth to and size of an underground object may be determined by sweeping a CSAMT signal and locating a peak response when the receiver spans the edge of the object. The depth of the object is one quarter wavelength in the subsurface media of the frequ... | 10/07/1986 |
