Did You Know...
...that the Eveready Battery began as an invention called the "electric flowerpot," which was a tube with a battery and light bulb inside? The idea was to fasten this gizmo to the side of a flowerpot so it would illuminate the flowers from the bottom. The idea died on the vine and the businessman who licensed the flower pot, Conrad Huber, was left with a pile of useless tubes -- until he found a way to market them as batteries to light the world!
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| Number | Title | Issue Date |
| 7227362 | Electric power grid induced geophysical prospecting method and apparatus An underground prospecting method and apparatus that utilizes the harmonics and fractional harmonic waves induced into the earth by the electric power grid. The data are converted to amplitude-depth and phase-depth data. The resulting data may be plotted and are com... | 06/05/2007 |
| 7126339 | Utility iron golf club with weighting element A golf club head comprising of a front plate integral with a primary body having a top, a sole, a rear portion, and a general periphery wherein the primary body and the front plate define a hollow interior and where the rear portion carries a weighting element that ... | 10/24/2006 |
| 7023213 | Subsurface conductivity imaging systems and methods A subsurface imaging cable includes a plurality of sensor modules, wherein the plurality of the sensor modules are flexible and each of the plurality of the sensor modules is spaced apart on the subsurface imaging cable at a selected distance; and a flexible medium ... | 04/04/2006 |
| 7002350 | Marine oil and gas exploration system using telluric currents as a natural electromagnatic energy source A marine oil and gas exploration system used for measuring telluric currents as a natural electromagnetic energy source flowing beneath an ocean and sea floor. The marine exploration system includes a towed fish adapted for being pulled behind a survey ship. The coo... | 02/21/2006 |
| 7002349 | Remote sensing electric field exploration system An airborne exploration system used with an aircraft for shallow and deep exploration for oil and gas, mineral deposits and aquifers. The survey system uses natural electromagnetic EM fields as an energy source. The exploration system includes a pair of aerodynamic ... | 02/21/2006 |
| 6950747 | Methods of processing magnetotelluric signals A method for processing magnetotelluric signals to identify subterranean deposits is provided for. The methods comprise obtaining magnetotelluric data from an area of interest. The magnetotelluric data comprises the amplitude of magnetotelluric signals recorded over... | 09/27/2005 |
| 5043667 | Method of magnetotelluric exploration using areal arrays A method of magnetotelluric exploration is described, wherein measures of the earth's electric and magnetic fields are obtained at a plurality of sensing locations comprising an areal array of sensing locations. Specifically, first and second components o... | 08/27/1991 |
| 4945310 | Passive geophysical survey method based upon the detection of the DC component of the vertical electrical potential of natural earth currents A geophysical prospecting method of measuring potentials existing in the air in the area of the lower atmosphere between about one and ten meters above the surface of the earth in order to detect petroleum accumulations and mineral deposits below the surf... | 07/31/1990 |
| 4841250 | Passive geophysical survey apparatus based upon the detection of the DC component of the vertical electrical potential of natural earth currents A geophysical prospecting detector device and method of measuring potentials existing in the air in the area of the lower atmosphere between about one and ten meters above the surface of the earth in order to detect petroleum accumulations and mineral dep... | 06/20/1989 |
| 4812766 | Telluric noise cancellation in induced polarization prospecting An improved method and apparatus for detecting telluric noise information while performing induced polarization prospecting. Telluric noise electrodes are positioned on an equipotential line lying about an input current electrode forming part of a convent... | 03/14/1989 |
| 4686475 | Passive geophysical prospection system based upon the detection of the vertical electric field component of telluric currents and method therefor An improved passive telluric current system for geophysical prospecting having a sensor responsive to the electric field component of the telluric current for producing a capacitive charge, a tuner for deconvoluting the sensed electric field telluric sign... | 08/11/1987 |
| 4473800 | Method for detecting magnetotelluric subsurface anomalies A method for removing the effects of said subsurface anomalies in magnetotelluric survey data is disclosed wherein resistivity curves are compared and a correction factor is determined. Resistivity curves having a deviation from a mean are multiplied by t... | 09/25/1984 |
| 4409551 | Telluric survey electrode An electrode for use in telluric electrical energy measurements is disclosed which has the property of easy, rapid installation and retrieval while maintaining electrical stability. The electrode is durable and much more easily stored than prior art tellu... | 10/11/1983 |
| 4339720 | Telluric noise cancellation in induced polarization prospecting Apparatus and method for generating a record of telluric noise which is substantially free of induced polarization signals and is suitable for removal of noise components from induced polarization signal records. The apparatus includes a single pair of te... | 07/13/1982 |
| 4210869 | Rotating telluric field measurements In magneto-telluric geophysical exploration, the earth's electric telluric field in two orthogonal directions is determined. Electrodes are positioned on the earth's surface so that measured potentials between adjacent electrodes measures the earth's tell... | 07/01/1980 |
