Did You Know...
...that after Parker Brothers executives turned down the game of Monopoly because it had "52 fundamental errors" (including taking too long to play), a copy of the game wound up in the home of the company president who stayed up until 1 a.m. to finish playing it? He was so impressed by the game that the next day he wrote to inventor Charles Darrow and offered to buy it!
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| Number | Title | Issue Date |
| 7412881 | Fluid flowrate determination A method and apparatus are useful for determining the flowrate of fluid flowing within a passage. The method comprises the step of measuring the equilibrium temperature of a location of interest within or proximate to the passage within which fluid flows. The temper... | 08/19/2008 |
| 7412331 | Method for predicting rate of penetration using bit-specific coefficient of sliding friction and mechanical efficiency as a function of confined compressive strength A method for predicting the rate of penetration (ROP) of a drill bit drilling a well bore through intervals of rock of a subterranean formation is provided. The method uses an equation based upon specific energy principles. A relationship is determined between a bit... | 08/12/2008 |
| 7231974 | Self-leaving in-situ device and method for passively removing oil from water wells A simple and inexpensive device with no moving arts for removing from a well non-aqueous liquids, such as gasoline or crude oil, that accumulate on top of the water table in the well comprises a buoyant elongated member, such as a plastic tube sealed at both ends, a... | 06/19/2007 |
| 7210530 | Subsea separation system A preferred embodiment of the inventive fluid delivery system comprises a vertical liquid/vapor separator and riser assembly that comprises a multi-phase separator inlet, a vapor outlet and riser, and a liquid outlet port connected to a hydraulically-driven centrifu... | 05/01/2007 |
| 6913013 | Charcoal igniter and method An improved charcoal igniter having utility with a charcoal cooking apparatus includes a tubular housing having open upper and lower ends, a grate releasably-mounted within the tubular housing for movement from a supporting position to a releasing position, and an a... | 07/05/2005 |
| 6857187 | Method of manufacturing a measuring wheel for wireline operations A method of manufacturing a measuring wheel for wireline operations includes the step of machining a metal wheel to achieve a first outer radius. The metal wheel is positioned within a ceramic ring having an inner radius that exceeds the first outer radius by an amo... | 02/22/2005 |
| 6821660 | Gas humidification device for operation, testing, and evaluation of fuel cells A method and apparatus for the humidification of gas streams, such as reactant gas streams for fuel cells, wherein the specific water evaporation rate, gas delivery temperature, and degree of gas humidity may be adjusted and maintained at predetermined levels. An ul... | 11/23/2004 |
| 6818004 | Aspherical positioning ring A suction ring providing an inferior engaging surface and a superior engaging surface that engages and grips the ocular globe, immobilizing the ocular globe relative to a corneal surgical procedure. The inferior engaging surface grips the sclera of the ocular globe ... | 11/16/2004 |
| 6810975 | Suspension system for a tracked vehicle A suspension system for a tracked vehicle, preferably having rubber tracks. The track assembly is mounted on a pivot shaft such that it can oscillate about the axis of the pivot shaft. The suspension system allows the track assembly to move vertically relative to th... | 11/02/2004 |
| 6733638 | Limited use components for an electrochemical device The present invention provides an ozone generating system that combines single-use elements or segments with an extended use fixture that is used to activate the single-use elements. One embodiment of the invention consists of a strip of proton exchange membrane (PE... | 05/11/2004 |
| 6698389 | Electrolyzer for internal combustion engine The present invention provides a method and apparatus for chemically heating one or more components of, or intake air flowing to, an internal combustion engine by feeding hydrogen to a catalyst. In accordance with the invention, condensation of fuels on c... | 03/02/2004 |
| 6697245 | Electronic load for the testing of electrochemical energy conversion devices In a load for testing an energy production device, such as a fuel cell, a technique is provided for sensing one or more operational parameters for each of a plurality field effect transistors. Analog and digital feedback are provided to adjust the control... | 02/24/2004 |
| 6656196 | Microkeratome cutting blade and method for performing corneal resections An improved microkeratome includes a guide ring assembly for placement on the ocular globe and means for temporarily fixing the guide ring to the ocular globe. A cutting head contains an improved cutting blade having an arcuate cutting edge suitable for c... | 12/02/2003 |
| 6638657 | Fluid cooled bipolar plate The present invention provides a separator for electrochemical cells, comprising a gas barrier having an electrically conducting pathway extending therethrough and a porous, electrically conducting member in electrical contact with each side of the electr... | 10/28/2003 |
| 6480440 | Seismic receiver motion compensation A method of compensating for seismic receiver motion in a marine seismic survey wherein at least one receiver is towed behind a moving seismic vessel comprises producing an acoustic energy wave at a seismic source, and recording the reflection arrival tim... | 11/12/2002 |
| 6315075 | Borehole logging tool with anchoring mechanism A borehole tool, such as a seismic shuttle-type logging tool, including a tool body having at least one sensor package and an anchoring mechanism, the anchoring mechanism having a drive mechanism including a motor, a drive shaft and a clutch; an anchoring... | 11/13/2001 |
| 6257355 | Downhole power generator An apparatus and method contemplate the use of a downhole tool, at least one magnet, and a magnetic energy converter for generating electricity in a receiver positioned in a subsurface formation. The downhole tool is connected to a drilling or a logging a... | 07/10/2001 |
| 6241494 | Non-elastomeric stator and downhole drilling motors incorporating same A drilling motor includes a non-elastomeric stator and rotor which are dimensioned for negative or zero interference. The amount of negative interference between the rotor and the stator is determined by the largest solid particle expected to pass through... | 06/05/2001 |
| 6230557 | Formation pressure measurement while drilling utilizing a non-rotating sleeve A downhole tool and method are provided for collecting data from a subsurface formation during drilling operations. The tool includes a tubular mandrel adapted for axial connection in a drill string positioned in a wellbore penetrating the subsurface form... | 05/15/2001 |
| 6219301 | Pressure pulse generator for measurement-while-drilling systems which produces high signal strength and exhibits high resistance to jamming A system is disclosed for generating and transmitting data signals to the surface of the earth while drilling a borehole, the system operating by generating pressure pulses in the drilling fluid filling the drill string. The system is designed to maximize... | 04/17/2001 |
| 6205087 | Sonic data logging system A sonic logging method involves the pre-processing of a detection signal by a downhole processing device to determine the arrival time of a sonic signal at a receiver which is then transmitted to the surface. A suitable sonic logging downhole tool include... | 03/20/2001 |
| 6170601 | Borehole seismic tool A borehole seismic shuttle tool includes (a) a tool body having a cavity with an opening in the wall of the tool body; (b) an anchoring arm attached to the tool body and operable to anchor the tool body to the borehole wall; (c) a sensor package positione... | 01/09/2001 |
| 6164126 | Earth formation pressure measurement with penetrating probe The present invention relates to an apparatus and method for measuring a property of a subsurface formation intersected by a wellbore, which contemplate the use of a tool body adapted for movement through the wellbore. Actuating means is carried by the to... | 12/26/2000 |
| 6147437 | Pressure and temperature transducer A pressure and temperature transducer includes an elongate housing formed from double rotation cut crystal quartz, an elongate plate-like resonator formed from double rotation cut crystal quartz capable of vibrating under an applied electric field located... | 11/14/2000 |
| 6070662 | Formation pressure measurement with remote sensors in cased boreholes The present invention relates to a method and apparatus for establishing communication in a cased wellbore with a data sensor that has been remotely deployed, prior to the installation of casing in the wellbore, into a subsurface formation penetrated by t... | 06/06/2000 |
| 6056166 | Portable liquid dispenser The present invention provides a portable dispenser of potable liquid, and includes an insulated container for storing the liquid, and a secondary container connected to the insulated container. A pump is positioned in either the insulated container or th... | 05/02/2000 |
| 5921445 | Portable liquid dispenser The present invention provides a portable dispenser of potable liquid, and includes an insulated container for storing the liquid, and a secondary container connected to the insulated container. A pump is positioned in either the insulated container or th... | 07/13/1999 |
