Bizarre Patents
An enclosure for small animals which is wearable on the front or back of an animate being.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 8148991 | Efficient resistivity measurement method by multi-point simultaneous current transmission system using pseudo-noise signal waveform A method for significantly reducing measurement time for electrical resistivity profiling and logging without degrading the quality of the measurement includes simultaneously transmitting a current from multiple points to underground and carrying out mathematic proc... | 04/03/2012 |
| 7859266 | Method of detecting soil structure using voltage slope and measuring earth resistance A method of accurately measuring earth resistance even when the composition state of soil that affects the installation of a metering device for measuring earth resistance is unknown. The method comprises measuring a potential at a first potential electrode point, m... | 12/28/2010 |
| 7804302 | Method and apparatus for enhancing formation resistivity images obtained with downhole galvanic tools The average current at a plurality of measure electrodes of a resistivity imaging tool is determined and subtracted from the individual measure currents to give a resistivity image with improved dynamic range. ... | 09/28/2010 |
| 7639016 | Downhole multi-phase flow imager Dynamic gain setting is provided for a multiphase flow measuring device that measures in-phase and quadrature signals. The average current at a plurality of measure electrodes is determined and subtracted from the individual measure currents to give a measurement wi... | 12/29/2009 |
| 7256582 | Method and apparatus for improved current focusing in galvanic resistivity measurement tools for wireline and measurement-while-drilling applications A galvanic resistivity tool with one or more measurement electrodes and guard electrodes, and one or more shielding electrodes. The potential difference between the measurement electrodes and the guard electrodes is controlled to minimize current flow between the me... | 08/14/2007 |
| 7064551 | Process for determining the resistivity of a formation through which a well equipped with a casing passes Process for determining the resistivity (Rt) of a formation (9) surrounding a well (10) equipped with a casing (11) consisting of several casing segments (11.i, 11.s) with an overlapping part (1), and cement ( | 06/20/2006 |
| 7034539 | Underground exploration apparatus, system and method The object of the present invention is to realize a low-invasive underground exploration apparatus, system, and method which are capable of specifying the kind, three-dimensional position, and amount of a substance present in the ground. The underground exploration ... | 04/25/2006 |
| 7026820 | Method and apparatus for minimizing direct coupling for downhole logging devices A method and apparatus for minimizing direct coupling between transmitters and receivers on a downhole logging tool are disclosed. One embodiment includes a transmitter, a bucking device, and a plurality of receivers, where signals may be directly coupled from the t... | 04/11/2006 |
| 7021403 | Method of establishing positions of locating field detectors and path mapping in underground boring tool applications Specific apparatus and associated methods are described for use in establishing the positions of locating field detectors and for path mapping within a region for the purpose of tracking and/or guiding the movement of an underground boring tool. In one aspect, an im... | 04/04/2006 |
| 6353322 | Method for automatically calibrating resistivity well logs for effects of change in wellbore diameter and circuit drift A method for determining the resistivity of earth formations penetrated by a wellbore. Electrical current is imparted to the wellbore and the earth formations from a first electrode located on a mandrel disposed in the wellbore. The electrical current is ... | 03/05/2002 |
| 6301954 | Segemented measuring probe for sewage pipes A method and apparatus for determining leaks in sewage pipes. The apparatus includes a measuring probe having several radially arranged measuring electrode segments, the measuring probe being positioned in the sewage pipe. With the probe sections and elec... | 10/16/2001 |
| 5068619 | Conductivity measuring device A conductivity measuring device comprises a low-potential intermediate electrode which is capable of being in connected state by a switch and which is disposed between a couple of measuring electrodes for transmitting and receiving. Each of said electrode... | 11/26/1991 |
