Bizarre Patents
Mountable Printable Placard With Headband
A resilient headband in a shape for being mounted on the head of the user. The headband is equipped with a longitudinal slotted member for holding a placard.
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 |
| 7821269 | Method for determining the dielectric constant of particles A method of measuring the dielectric constant of a powder, including selecting a powder having an unknown first dielectric constant, selecting a liquid having a known second dielectric constant, and introducing a predetermined amount of powder into a predetermined v... | 10/26/2010 |
| 7363160 | Technique for determining properties of earth formations using dielectric permittivity measurements Techniques for determining formation characteristics use measurements of dielectric permittivity at a number of frequencies. Determined characteristics include the vertical and horizontal formation dielectric constant and conductivity, the formation water conductivi... | 04/22/2008 |
| 7279911 | Probe card assembly with dielectric structure A probe card assembly for providing electrical interconnection between a semiconductor device to be tested and a test system is provided. The probe card assembly includes a plurality of probes supported by a support substrate, each of the plurality of probes includi... | 10/09/2007 |
| 7145329 | Manually operated working tool The present invention relates to a manually operated working tool such as an internal combustion operated setting tool for driving in fastening elements such as nails, bolts, pins into a magnetizable substrate, having an inductive metal detector assembly (20)... | 12/05/2006 |
| 7123017 | Specific dielectric constant calibration method for an electromagnetic prober An electromagnetic prober comprising a transmission antenna, a reception antenna, a reception signal processing section for generating an analytic signal on the basis of a detection signal of the reception antenna, and an analytic processing section for performing a... | 10/17/2006 |
| 7031839 | Multi-frequency focusing for MWD resistivity tools An induction logging tool is used on a MWD bottom hole assembly. Due to the finite, nonzero, conductivity of the mandrel, conventional multi frequency focusing (MFF) does not work. A correction is made to the induction logging data to give measurements simulating a ... | 04/18/2006 |
| 7023384 | Beam steering with a periodic resonance structure Method and apparatus for steering an antenna beam using a periodic resonance structure (300). The method can include the step of electrically and magnetically coupling a first fluid dielectric (114) to a plurality of transmission line stubs (104... | 04/04/2006 |
| 6998844 | Propagation based electromagnetic measurement of anisotropy using transverse or tilted magnetic dipoles Transverse or tilted magnetic dipole antenna systems are used for electromagnetic logging measurements to determine the anisotropic resistivity of subsurface formations. Combined measurements between transverse or tilted antennas, as well as axial antennas, are used... | 02/14/2006 |
| 6978658 | Proximity sensor with self compensation for mechanism instability A retractable proximity sensor system with a self-compensating mechanism to reduce the impact of mechanical instability on the precision of a proximity sensor is disclosed. The retractable proximity sensor system includes a retractable proximity sensor and a proximi... | 12/27/2005 |
| 6952101 | Method for determining direction to a target formation from a wellbore by analyzing multi-component electromagnetic induction signals A method is disclosed for determining a direction of a target formation with respect to an instrument in a wellbore. The target has an electrical conductivity different than earth formations surrounding the wellbore. The method includes inducing time varying electro... | 10/04/2005 |
| 6938469 | Method for determining properties of formation fluids A method is disclosed for downhole determination of the resistivity of fluids from formations surrounding an earth borehole, including the following steps: providing a formation testing logging device that includes a coil and a flow line passing axially through the ... | 09/06/2005 |
| 6762613 | Testing system and method of operation therefor including a test fixture for electrical testing of semiconductor chips above a thermal threshold temperature of an interlayer dielectric material A testing system and method of operation therefor is provided including a test fixture for electrical testing above a thermal threshold temperature of a low dielectric constant material and having a test-chip-die-sized enclosed volume. The test fixture has an electr... | 07/13/2004 |
| 6060884 | Method and apparatus for measuring electromagnetic properties of materials in borehole environs and simultaneously determining the quality of the measurements A wave propagation measurement-while-drilling system is used to measure selected formation and borehole parameters of interest and simultaneously provide indications of the quality of the selected measurements. One or more transmitter-receiver pairs are e... | 05/09/2000 |
| 5886526 | Apparatus and method for determining properties of anisotropic earth formations A method is disclosed for determining the horizontal resistivity, vertical resistivity, and dip of formations surrounding a borehole, comprising the following steps: (a) suspending a logging device in the borehole; (b) transmitting electromagnetic energy ... | 03/23/1999 |
| 5811973 | Determination of dielectric properties with propagation resistivity tools using both real and imaginary components of measurements A propagation resistivity measurement-while-drilling system is used to determine the resistivity (or conductivity) of the conate formation fluid, the dielectric constant of the dry rock matrix, and the water filled porosity of the formation. One or more t... | 09/22/1998 |
| 5736860 | Inductive logging system having multiple coils from which are selected a receiver and a counter-receiver A well logging system using an induction measurement. The system includes an emitting coil and a plurality of receiving coils. The emitting coil induces eddy currents in the medium surrounding the coils. The receiving coils then measure magnetic fields pr... | 04/07/1998 |
| 5469062 | Multiple depths and frequencies for simultaneous inversion of electromagnetic borehole measurements A wave propagation measurement-while-drilling system is used to determine selected formation and borehole properties. One or more transmitter-receiver pairs are utilized with the transmitter components operating at one or more frequencies to provide a mea... | 11/21/1995 |
| 5434507 | Method and apparatus for electromagnetic logging with two dimensional antenna array A two-dimensional array of slot antennas which can provide two-dimensional quantitative dielectric and conductivity images of formations in the region surrounding an earth borehole. The antennas are mounted in a wall-engaging member of a logging device th... | 07/18/1995 |
| 5389881 | Well logging method and apparatus involving electromagnetic wave propagation providing variable depth of investigation by combining phase angle and amplitude attenuation An electromagnetic wave propagation well logging system for measuring dielectric constant and/or formation resistivity (conductivity) includes three transmitters and a pair of receivers. The receiver pair is connected to circuitry that measures the amplit... | 02/14/1995 |
| 5367262 | Advances in high frequency dielectric logging The present apparatus and method are directed to a high frequency dielectric measurement system for use in logging a well borehole. A transmitter transducer cooperative with one or more receiver transducers arranged on a common pad is utilized to make suc... | 11/22/1994 |
| 5341100 | Electromagnetic wave method and apparatus for downhole measurement of fluid conductivity and hydrocarbon volume during formation testing There is disclosed in the present specification a method and apparatus for use of a downhole formation multi-tester instrument in the characterization of formation fluids, including measurement of the conductivity of water, often in the presence of hydroc... | 08/23/1994 |
| 5210495 | Electromagnetic logging method and apparatus with scanned magnetic dipole direction In a form of the disclosure, electromagnetic propagation logging measurements are made for several magnetic moment directions of the electromagnetic energy, and can be examined and/or processed retrospectively in order to select the logging information wh... | 05/11/1993 |
| 5187661 | Method of determining invaded formation properties including resistivity dielectric constant and zone diameter An apparatus and method for induction logging is disclosed. By transmitting a sequence of pulses at many frequencies, the formation invaded zone diameter can be distinguished as a result of changes in resistivity. As higher frequencies are swept, dielectr... | 02/16/1993 |
| 5059907 | Method for evaluating the water saturation of subterranean formations from dielectric permittivity measurements Two types of dielectric logging tools are in use: the pad type which operates in the 100 to 1100 MHz frequency range and the mandrel type, which typically operates in the 10 to 100 MHz range. Although both types of tools make the same measurement, the low... | 10/22/1991 |
| 4980642 | Detection of influx of fluids invading a borehole The present invention is directed to a system, apparatus and methods for determining influx of formation fluids into a well borehole during drilling. The methods of the present invention comprise determining the dielectric constant and/or conductivity of ... | 12/25/1990 |
| 4897605 | Deep penetration well logging system and method A well logging system and method of the present invention determines the dielectric constant and/or conductivity of earth formations some of which have fluid invasion. The system and method of the present invention includes the transmission of electromagn... | 01/30/1990 |
| 4893084 | Formation electromagnetic parameters measuring tool using transmitter reference and reflected signals and a received signal A method and apparatus for dielectric investigation in formations adjacent a well borehole is set forth. In the preferred and illustrated embodiment, a microwave transmitter forms and output signal which is transmitted by a transmitter antenna in contact ... | 01/09/1990 |
| 4786873 | Method for evaluating water saturation in petroleum reservoirs from dielectric permittivity A new functional parameter reprsentative of the geometrical distribution of matrix material and the variable geometrical distribution of hydrocarbon and water in pore spaces in a porous earth formation is determined and is used to evaluate, or to determin... | 11/22/1988 |
| 4785247 | Drill stem logging with electromagnetic waves and electrostatically-shielded and inductively-coupled transmitter and receiver elements An apparatus and method for measuring formation parameters by transmitting and receiving electromagnetic signals by antennas disposed in recesses in a tubular housing member and including apparatus for reducing the coupling of electrical noise into the sy... | 11/15/1988 |
| 4780679 | Method for determining low frequency conductivity of subsurface formations Well logging techniques are set forth for obtaining improved measurements of formation dielectric permittivity, conductivity, and water-filled porosity. The effects of dielectric and conductivity frequency dispersion are considered and utilized. In a disc... | 10/25/1988 |
| 4774471 | Complex dielectric constant well logging means and method for determining the water saturation and the water resistivity of an earth formation A well logging system and method for determining the water saturation of an earth formation and the resistivity of the water using complex dielectric constant and formation porosity measurements. Electromagnetic energy is transmitted into the earth format... | 09/27/1988 |
| 4769606 | Induced polarization method and apparatus for distinguishing dispersed and laminated clay in earth formations Logging means and methods are disclosed for distinguishing between dispersed and laminated clay in earth formations. A wireline apparatus is employed consisting of a multifrequency induced polarization logging tool operating at extremely low frequencies, ... | 09/06/1988 |
| 4730161 | Dual frequency well logging system for determining the water resistivity and water saturation of an earth formation The present invention is a well logging method for determining the water saturation of an earth formation and the water's resistivity. Electromagnetic energy is transmitted into the earthen formation from a borehole traversing the earth formation. The ele... | 03/08/1988 |
| 4704581 | Electromagnetic logging apparatus using vertical magnetic dipole slot antennas An electromagnetic logging apparatus is disclosed which utilizes vertical magnetic dipole antennas for propagation logging, preferably at a frequency greater than 100 MHz. Slot antennas having conductive probes which are perpendicular to the borehole axis... | 11/03/1987 |
| 4700141 | Deep penetration well logging sonde A well logging system and method of the present invention determines the dielectric constant and/or conductivity of earth formations some of which have fluid invasion. The system and method of the present invention include the transmission of electromagne... | 10/13/1987 |
| 4689572 | Electromagnetic logging apparatus with slot antennas An electromagnetic logging apparatus is disclosed which employs dielectric-filled slot antennas, in conjunction with tuning elements, to obtain improved operation. The apparatus can be used to measure the dielectric constant of formations surrounding a bo... | 08/25/1987 |
| 4687995 | Secondary field dielectric constant and/or resistivity well logging system and method Apparatus for determining the dielectric constant and/or resistivity of earth formations traversed by a borehole includes a transmitter which transmits electromagnetic energy into the earth formation from a first location in the borehole at a frequency wh... | 08/18/1987 |
| 4678997 | Method and apparatus for dielectric well logging of subsurface earth formations with a lumped constant antenna Method and apparatus for use in introducing electromagnetic energy into subsurface earth formations and acquiring measurements relating to propagation of such energy therethrough. A logging tool body includes a plurality of transmitter and receiver antenn... | 07/07/1987 |
| 4652829 | Electromagnetic logging apparatus with button antennas for measuring the dielectric constant of formation surrounding a borehole An electromagnetic logging apparatus is disclosed which employs dielectric-filled button antennas, in conjunction with tuning elements, to obtain improved operation. The apparatus can be used to measure the dielectric constant of formations surrounding a ... | 03/24/1987 |
| 4652828 | Method and apparatus for determining dielectric permittivity of subsurface formations Well logging techniques are set forth for obtaining improved measurements of formation dielectric permittivity, conductivity, and water-filled porosity. The effects of dielectric and conductivity frequency dispersion are considered and utilized. In a disc... | 03/24/1987 |
