A fork with timer for providing a cue to a user after an elapsed period of time for indicating that another bite of food using the fork may be taken.
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| Number | Title | Issue Date |
| 7905279 | Combination whipstock and seal bore diverter system A combination whipstock and seal bore diverter system includes a whipstock; and a diverter configured to receive and support the whipstock in a selected orientation, the system being installable in a single run in a borehole. ... | 03/15/2011 |
| 7748446 | Seismic source and method of generating a seismic wave in a formation A Seismic source comprising an actuator having a rotary part (104) and a reciprocative part (105), conversion means (109) in the form of corrugated surfaces to convert a rotation of the rotary part (104) into a reciprocal movement of the ... | 07/06/2010 |
| 7575051 | Downhole vibratory tool A vibratory tool for downhole use is capable of letting a wireline or other tools pass a passage therethrough that can be subsequently closed by landing a plug on a seat. The dump valve is disposed annularly about the central passage so that cycling the tool does no... | 08/18/2009 |
| 7434623 | Percussion tool and method A percussion apparatus and method of using the percussion apparatus. The apparatus may be used for delivering an impact to a tubular string. The apparatus comprises a cylindrical member having an internal bore containing an anvil and a first guide profile. The appar... | 10/14/2008 |
| 7405998 | Method and apparatus for generating fluid pressure pulses Apparatuses and methods for generating fluid pressure pulses are disclosed. An example apparatus may include a chamber that can collect fluid and an upstream ported disc coupled to a downstream end of the chamber. The upstream ported disc may rotate about a central ... | 07/29/2008 |
| 7358691 | Vibration device A vibration device comprises a motor having a stator and a rotor each having one or more magnetic elements. A magnetic element on at least one of the rotor and the stator comprises an electromagnet which can be supplied with an electric current so as to interact wit... | 04/15/2008 |
| 7293614 | Multiple impact jar assembly and method A hydraulic jarring tool may be suspended in a well from a wireline, tubular string or drill string, and may be activated to release a tool stuck in the well, or to release the drill string. Each of an upper and lower jarring section include a housing, a piston, a p... | 11/13/2007 |
| 7264055 | Apparatus and method of applying force to a stuck object in a wellbore An apparatus for applying a force to a stuck object in a wellbore that includes a work string extending in the wellbore is provided. A vibrating string has a vibrator engaged with the stuck object. The vibrator drives the vibrating string to impart the force to the ... | 09/04/2007 |
| 7219726 | Method and apparatus to vibrate a downhole component An apparatus for use in a wellbore comprises a housing having a longitudinal axis and a mechanism having one or more impact elements adapted to move along the longitudinal axis in an oscillating manner to impart a back and forth force on the housing to vibrate the h... | 05/22/2007 |
| 7213650 | System and method for scale removal in oil and gas recovery operations A system and method for stimulating a formation surrounding a well and vibrating a device for supporting a gravel pack in the well, according to which a build up of scale on the device is sensed and a corresponding signal is output. A driver is provided for driving ... | 05/08/2007 |
| 7182170 | Gerotor and bearing system for whirling mass orbital vibrator A gerotor and bearing apparatus for a whirling mass orbital vibrator which generates vibration in a borehole. The apparatus includes a gerotor with an inner gear rotated by a shaft having one less lobe than an outer gear. A whirling mass is attached to the shaft. At... | 02/27/2007 |
| 7182152 | Sampling isolator A soil sampling system that in one embodiment includes a drill rod, a sampler or core barrel and an adapter coupling, for connecting the sampler barrel to the drill rod. In one embodiment the drill rod provides vibratory drilling movement, and the sampler barrel col... | 02/27/2007 |
| 7139219 | Hydraulic impulse generator and frequency sweep mechanism for borehole applications This invention discloses a valve that generates a hydraulic negative pressure pulse and a frequency modulator for the creation of a powerful, broadband swept impulse seismic signal at the drill bit during drilling operations. The signal can be received at monitoring... | 11/21/2006 |
| 7114560 | Methods for enhancing treatment fluid placement in a subterranean formation The present invention relates to methods for controlling the migration of unconsolidated particulates in a portion of a subterranean formation, and more particularly, to the using a pressure pulse to enhance the effectiveness of placement of a consolidation fluid in... | 10/03/2006 |
| 7066250 | Well tubing/casing vibrator apparatus A vibrator apparatus for inducing longitudinal vibrations in a well tubing or casing member for various operations, or for removing stuck tubing or casing. The apparatus includes a vibrator section with spaced apart rotatable shafts carrying eccentric weights and in... | 06/27/2006 |
| 7063141 | Apparatus for agitated fluid discharge The pressure reading tool includes a housing with an interior chamber and an orifice extending from the chamber to the exterior of the housing. A pulse member with a magnetostrictive ring and an excitation source are disposed within the chamber to produce a highly a... | 06/20/2006 |
| 6994167 | Method and system for cement lining a wellbore The invention describes a method of cement lining a wellbore to enable a fixed sensor internal of the lining to sense characteristics of the external formations surrounding the wellbore using, at the region of the sensor position, a permeability changing device befo... | 02/07/2006 |
| 6959760 | Downhole pulser A power generator for use in a wellbore formed in an earth formation, including an internal combustion engine having a cylinder and a piston defining a combustion chamber in the cylinder, the engine being arranged to induce a reciprocating movement to the piston rel... | 11/01/2005 |
| 6907927 | Method and apparatus to vibrate a downhole component An apparatus for use in a wellbore comprises a housing having a longitudinal axis and a mechanism having one or more impact elements adapted to move along the longitudinal axis in an oscillating manner to impart a back and forth force on the housing to vibrate the h... | 06/21/2005 |
| 6863125 | Device for flow and liftgas production of oil-wells (versions) The proposed device for operation of free flowing and gas lift oil wells relates to production of gas-liquid mixtures, and particularly of gasified oil, and can be used in wells if either the productive formation flows naturally or when compressed gas is artificiall... | 03/08/2005 |
| 6782951 | Flow-activated valve and method of use According to the present invention, the flow-activated valve assembly is a fluid-driven tool for use in various down hole drilling and fishing operations, which is activated by the introduction of fluid into an enclosed assembly, whereby fluid forces a movable porti... | 08/31/2004 |
| 6779598 | Swivel and eccentric weight to orient a roller sub A downhole device, adapted for use in wireline or slickline application, is provided for incorporation into a downhole string and movement in a wellbore. The device comprises means to orient the device in a wellbore, and one or more conveying means arranged to engag... | 08/24/2004 |
| 6736209 | Method for vibrational impact on a pipe string in a borehole and devices for carrying out said method The invention relates to well construction and is directed at an oscillation excitation in a pipe string. According to the inventive method, an operating fluid is circulated in the pipe string. An autonomous mechanism for vibrational impact embodied in the form of a... | 05/18/2004 |
| 6729407 | Method for removing gravel pack screens A method of removing a gravel packed screen to reach another zone is described. The method involves a bottom hole assembly comprising an isolation device for the screen and a tool to latch on to it. A perforating gun is shot off to put holes in the screen to allow g... | 05/04/2004 |
| 6725923 | Method and device for exciting transversal oscillations of a pipe string in a borehole Method and devices for freeing stuck pipes in wells in the absence of circulation or intensifying of inflow of fluids from a productive rock, for cleaning plugged well screens, and for improving quality of cementing of casing pipes in wells. Transverse vibrations ar... | 04/27/2004 |
| 6725932 | Down hole jar tool The down hole jar tool is a tool used to apply jarring forces to objects that may be obstructing the path of a down hole, or above-ground operation that requires a repetitive jarring action to dislodge or remove such objects. The tool is used by providing a linear i... | 04/27/2004 |
| 6705396 | Method and apparatus for producing fluid cavitation A method and apparatus for producing fluid cavitation is provided. For a given channel cross-section of a pressure line, the flow is accelerated so as to reach a speed at which Re>Recr, where Re is the Reynolds number and Recr is the critical R... | 03/16/2004 |
| 6691778 | Methods of performing downhole operations using orbital vibrator energy sources Methods of performing down hole operations in a wellbore. A vibrational source is positioned within a tubular member such that an annulus is formed between the vibrational source and an interior surface of the tubular member. A fluid medium, such as high ... | 02/17/2004 |
| 6619394 | Method and apparatus for treating a wellbore with vibratory waves to remove particles therefrom A process and apparatus for treating a wellbore, comprising subjecting a substantially same portion of the wellbore to vibratory waves produced by a plurality of vibratory wave generators. The vibratory waves may have about the same frequency or a plurali... | 09/16/2003 |
| 6571870 | Method and apparatus to vibrate a downhole component An apparatus for use in a wellbore comprises a housing having a longitudinal axis and a mechanism having one or more impact elements adapted to move along the longitudinal axis in an oscillating manner to impart a back and forth force on the housing to vi... | 06/03/2003 |
| 6502638 | Method for improving performance of fishing and drilling jars in deviated and extended reach well bores A method for using fishing and drilling jars which require high applied tensile loads in deviated or horizontal well bores is described. The method involves the placement of the string of high frequency vibratory devices that are triggered by flow thereth... | 01/07/2003 |
| 6491095 | Transducers, and methods of producing transducers, with cryogenically treated transducer members A transducer provides (a) increased magnitudes of vibrations without cracking and (b) increased power to the transducer, in response to alternating voltages, for producing transducer vibrations with increased magnitudes. A polycrystalline ceramic (e.g. po... | 12/10/2002 |
| 6412560 | Tubular injector with snubbing jack and oscillator A tubular injector with snubbing jack and oscillator, which eliminates the need for overhead tubular and oscillator support structure and utilizes resonant vibration to remove tubulars (2) and other objects which are stuck in a well. In a first embodiment... | 07/02/2002 |
| 6405797 | Enhancement of flow rates through porous media For extracting a liquid (such as oil) from a porous medium, the liquid is subjected to pulses that propagate through the liquid flowing through the pores of the medium. The pulses cause momentary surges in the velocity of the liquid, which keeps the pores... | 06/18/2002 |
| 6390191 | Method for stimulating hydrocarbon production A system for stimulating the production of hydrocarbon containing substances, such as from oil and gas wells, by the use of a generally cylindrical, high energy producing transducer mechanism. The transducer comprises a series of aligned transducer elemen... | 05/21/2002 |
| 6328102 | Method and apparatus for piezoelectric transport The present invention is directed to a method of utilizing the piezoelectric effect to transport a target substance within an earth formation. An earth formation is identified which bears a target substance. The piezoelectric properties of the earth forma... | 12/11/2001 |
| 6321836 | Utilization of energy from flowing fluids A fluid powered downhole vibration tool used in a well bore having fluids under pressure. The tool includes a resonant chamber with a through passage in communication with the fluids under pressure wherein the chamber vibrates as the fluids pass through t... | 11/27/2001 |
| 6318471 | Method for installing tubular members axially into the earth A method is disclosed for installing a tubular member, having an upper end and a closed lower end, axially into and through an over-pressured region of the earth by using a mandrel to drive the tubular member from near the bottom, which results in a signi... | 11/20/2001 |
| 6250386 | Process for stimulation of oil wells There is described a process for the stimulation of an oil reservoir or an oil well for enhanced oil recovery and/or seismic mapping of the reservoir, wherein a sound source is used. This sound source is operated by pressurized oil from the oil well by a ... | 06/26/2001 |
| 6247533 | Utilization of energy from flowing fluids A fluid powered downhole vibration tool used in a well bore having fluids under pressure. The tool includes a resonant chamber with a through passage in communication with the fluids under pressure wherein the chamber vibrates as the fluids pass through t... | 06/19/2001 |