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...When G.G. Hubbard learned of his future son-in-law's invention, he called it "only a toy." His daughter was engaged to a young man named Alexander Graham Bell.
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| Number | Title | Issue Date |
| 8177152 | Asphalt shingle recycling system The asphalt roofing material is delivered into a treatment chamber of a processor. Hot oil is passed through a jacket surrounding the treatment chamber. Heated asphalt forms a hot solid and/or a liquefied slurry. The hot solid and/or the liquefied slurry is then rem... | 05/15/2012 |
| 7901247 | Electrical connectors and sensors for use in high temperature, high pressure oil and gas wells An electrical connector having no glass seals, while having a single electrical conductor embedded in a thermoplastic body, with a section of the electrical conductor also being enclosed within a insulating ceramic bushing, wherein the electrical conductor has an en... | 03/08/2011 |
| 7364451 | Hybrid glass-sealed electrical connectors An electrical connector adapted for mounting to an electrical apparatus used in either high pressure or high temperature, or both high temperature and high pressure, applications. A metal body is provided for mounting to the electrical apparatus with at least one co... | 04/29/2008 |
| 7043486 | Process and system for tracking versions of field documentation data collection configurations in a complex project workflow system A process is provided for capturing a state of a data input interface at a particular time in a complex workflow system. The data input interface provides an interface for entering actual data to populate a field document. The data input interface is modified on a p... | 05/09/2006 |
| 6725621 | Power generation system and method of construction The present invention is an improved power generation facility and method of construction. The improved power generation facility of the present invention provides a low impact implementation suitable for placement in or near a developed, populated area comprising u... | 04/27/2004 |
| 6568479 | Horseshoe shaped elevator and method for using same A U-shaped elevator having no doors is provided with first and second latching mechanisms which when contacted by the tubular to be entrapped within the elevator move from a closed position to an open position and which then return to a closed position as... | 05/27/2003 |
| 6425442 | Anti-rotation device for use with well tools A drillable, anti-rotation device for limiting the rotation of a downhole tool, such as a cement plug, when drilling out the down hole tool. The drillable, anti-rotation device comprises a drillable sleeve connected within a non-drillable outer tubular me... | 07/30/2002 |
| 4669522 | Manufacture of rotary drill bits A method of making a rotary drill bit comprises forming a hollow mould for moulding at least a portion of the bit body, packing at least a part of the mould with powdered matrix material, and infiltrating the material with a metal alloy in a furnace to fo... | 06/02/1987 |
| 4636995 | Mud pressure control system A down-hole signal generator for a mud-pulse telemetry system comprises a flow constrictor defining a throttle orifice for the mud passing along a drill string, a throttling member displaceable with respect to a casing to modulate the mud pressure for the... | 01/13/1987 |
| 4636999 | Magnetostrictive pulse generator A magnetostrictive generator includes a magnetostrictive transducer having a vanadium permandur core and series connected primary and secondary windings, the secondary winding having more turns that the primary winding. A commutating capacitor is connecte... | 01/13/1987 |
| 4624830 | Manufacture of rotary drill bits A method of manufacturing by a powder metallurgy process a rotary drill bit including a bit body having a plurality of cutting elements mounted on the outer surface thereof comprises the steps of forming a hollow mould for moulding at least a portion of t... | 11/25/1986 |
| 4613443 | Nonconducting thread lubricant A nonconducting pipe thread lubricating composition for use in a drill string capable of transmitting electrical signals from a downhole location to the surface of the earth. The composition includes hard and soft moderately deforming materials such as po... | 09/23/1986 |
| 4596926 | Formation density logging using multiple detectors and sources A gamma ray density sub and method useful for measurement-while-drilling applications utilizing three pairs of gamma ray sources and detectors located symmetrically about the axis of the sub and computation of the product of the counting rates obtained fr... | 06/24/1986 |
| 4593771 | Tubing-conveyed external gauge carriers An external gauge carrier for use in tubing-conveyed drill stem testing comprises a protective housing for locating and securing the pressure measuring and recording system. The gauge carrier may be manufactured from drill collar bar stock but provides a ... | 06/10/1986 |
| 4575261 | System for calculating formation temperatures Determination of drilling mud thermal conductivity for estimation of earth formation temperature through a well bore thermal model. Borehole annulus and drill pipe bore temperature measurements are taken over a relatively short period of time when circula... | 03/11/1986 |
| 4570480 | Method and apparatus for determining formation pressure Method and apparatus are provided for determining the formation pressure. The magnitude of formation pressure may be derived as a function of changes in bottomhole pressure following swabbing the borehole to draw formation fluids into the borehole, monito... | 02/18/1986 |
| 4562559 | Borehole acoustic telemetry system with phase shifted signal In a borehole telemetry system for acoustically transmitting data over a pipe suspended in a borehole, the level of noise in the data stream is inherently high due to the environment existing in a drilling operation and to the physical characteristics of ... | 12/31/1985 |
| 4548283 | Rotating shaft seal and bearing lubricating apparatus In accordance with an illustrative embodiment of the present invention, a seal or bearing lubricating system adapted for use in a downhole tool such as a drilling motor includes chamber means packed with grease for lubricating said seal and/or bearing, an... | 10/22/1985 |
| 4535429 | Apparatus for signalling within a borehole while drilling A down-hole signal transmitter for a mud pulse telemetry system comprises a flow constrictor defining a throttle orifice for the mud flow, a throttling member displaceable to vary the throughflow cross-section of the throttle orifice, and a pump for displ... | 08/13/1985 |
| 4532812 | Parametric acoustic flow meter Method and apparatus for measuring the flow velocity of drilling mud returning from the annulus of a borehole. At least two parametric acoustic pulse transducers are longitudinally disposed with respect to a conduit with a pair of acoustic receivers posit... | 08/06/1985 |
| 4527425 | System for detecting blow out and lost circulation in a borehole A drilling mud flow rate detector, including a sub adapted for being positioned in the drill string, having a sonic signal generator located near the center of the sub in both the incoming mud flow path and the return mud flow path. A set of sonic signal ... | 07/09/1985 |
| 4515010 | Stuck point indicating device with linear sensing means A device for determining the stuck point of a drill pipe in a borehole consisting of two relatively movable sections, anchoring means for each section, a sensing means for detecting relative movement of the two sections and producing an inductance represe... | 05/07/1985 |
| 4510696 | Surveying of boreholes using shortened non-magnetic collars When surveying a borehole using an instrument responsive to the earth's magnetic field, a length of non-magnetic drill collar is necessary to house means for measuring the magnetic field in the borehole perpendicular to the direction of the borehole axis.... | 04/16/1985 |
| 4507958 | Surveying of a borehole for position determination A borehole is surveyed by positioning at the mouth of the borehole a survey instrument having a casing and a three-axis rate gyroscope unit mounted within the casing, and sensing at least two components of gravity in at least two mutually transverse direc... | 04/02/1985 |
| 4082144 | Method and apparatus for running and retrieving logging instruments in highly deviated well bores The system consists of means for running a logging instrument and a long semi-rigid extension on a logging cable through open-ended drill pipe. A head on the upper end of the extension conforms sufficiently close to the inside diameter of the drill pipe t... | 04/04/1978 |
| 4067486 | Liquid fuel dispensing system A liquid fuel dispensing system having a plurality of dispensing pumps each generating electric pulses according to the volume of fuel dispensed and a central control where payment is made. A data transmission link couples each pump to the central control... | 01/10/1978 |
| 4064939 | Method and apparatus for running and retrieving logging instruments in highly deviated well bores The system consists of means for running a logging instrument connected to a long rigid extension on a logging cable through open-ended drill pipe. The extension consists of a number of sections of tubing that are joined together on top of the instrument ... | 12/27/1977 |
| 4063592 | System for logging highly deviated earth boreholes utilizing auxiliary sinker bar assembly A conventional logging instrument is adapted to traverse a slanted or deviated earth borehole on the end of a conventional logging cable. A heavy, streamlined sinker bar is adapted to be fitted over the cable and to slide freely thereon. Upper and lower s... | 12/20/1977 |
| 4056004 | Multiple arm pad instrument for logging highly deviated boreholes A borehole instrument having four arm pad members utilizes four independent bow springs, each of the bow springs being anchored to the instrument at one of their ends and being individually slidably mounted at their other ends to the instrument. A push-pu... | 11/01/1977 |
| 4047430 | Method and apparatus for logging earth boreholes using self-contained logging instrument A self-contained, battery powered well logging instrument is pumped down the interior of a drill pipe string having a catcher sub at its lower end. When the logging instrument latches into the catcher sub, the pumped fluid circulation is blocked, after wh... | 09/13/1977 |
| 4046764 | Method and apparatus for measuring the thermal neutron absorption rate in earth formations Circuitry is provided for establishing the points in time at which radiation is detected following each neutron burst in pulsed neutron logging. Means are provided to generate a signal indicative of the arithmetic mean to then compute the macroscopic ther... | 09/06/1977 |
| 4041780 | Method and apparatus for logging earth boreholes A self-contained, battery powered well logging instrument is pumped down the interior of a drill pipe string having a catcher sub at its lower end. When the logging instrument latches into the catcher sub, the pumped fluid circulation is blocked, after wh... | 08/16/1977 |
| 4041309 | Background subtraction system for pulsed neutron logging of earth boreholes Neutron generator in well logging instrument is pulsed 100 times having a time between pulses of 1400 microseconds. This is followed by an off period of four cycles wherein 2800 microseconds is allowed for capture radiation to decay to an insignificant le... | 08/09/1977 |
| 4031750 | Apparatus for logging inclined earth boreholes An elongated borehole logging instrument includes a permanent magnet linear reciprocating motor. The motor powers a sliding sleeve which has attached to its outer perimeter a series of reversible vanes. The vanes engage the mud cake or the borehole wall a... | 06/28/1977 |
| 4019125 | Well logging pad devices having selective differential relief A well logging instrument comprises a focus section having a focus upper guard, a center electrode and lower focus guard. The bottom section of the instrument includes a pad device having electrodes on its borehole wall-engaging surface and adapted to be ... | 04/19/1977 |
| 4013874 | Address decoder for use with multichannel analyzers The address scaler outputs of a multichannel analyzer are fed to two comparator circuits in an address decoder, one such address decoder being provided for each energy range of interest in the spectrum of detected gamma rays produced, or occurring, in ear... | 03/22/1977 |
| 4002063 | Well logging pad devices having differential pressure relief A well logging instrument comprises a focus section having a focus upper guard, a center electrode and lower focus guard. The bottom section of the instrument includes a pad device having electrodes on its borehole wall-engaging surface and adapted to be ... | 01/11/1977 |
| 3996473 | Pulsed neutron generator using shunt between anode and cathode A pulsed neutron generator for well logging is provided having a resistor connected between the anode and cathode. The resistor provides a direct current path whereby corona current can flow between the cathode and a corona point without the necessity for... | 12/07/1976 |
| 3990304 | Fluid interface measuring device for use in earth boreholes The borehole instrument contains a pair of bellows which are equally spaced from a differential pressure transducer to provide equal temperature expansion of the liquid to provide a true reading on the transducer. A third bellows is connected between the ... | 11/09/1976 |
| 3984032 | Liquid fuel dispensing system A liquid fuel dispensing system having a plurality of dispensing pumps each generating electric pulses according to the volume of fuel dispensed and a central control where payment is made. A data transmission link couples each pump to the central control... | 10/05/1976 |
