Did You Know...
...that power steering was invented by independent inventor Francis W. Davis? As chief engineer in the 1920s of the truck division of the Pierce Arrow Motor Car Company, he saw how hard it was to steer heavy vehicles. So that he would be able to keep the profits from his future invention, Davis left his job, rented a small engineering shop in Waltham, Mass., and developed a hydraulic power steering system that led to power steering.
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| Number | Title | Issue Date |
| 8162080 | Apparatus and methods for continuous coring In an aspect, an apparatus may include a chamber configured to receive a core at a receiving end of the chamber and a cutting device configured to cut the core at a location distal from the receiving end of the core chamber. In aspects, a method may include drilling... | 04/24/2012 |
| 8109347 | Core catcher and corer having it The present invention relates to a core catcher and a corer having the same, and more particularly, to a core catcher provided with dual blade radial pins for preventing loss of sediments and a corer having the same. ... | 02/07/2012 |
| 8011454 | Apparatus and methods for continuous tomography of cores A method of estimating a property of interest downhole according to one aspect of the disclosure may include continuously receiving a core drilled from a formation into an open end of a chamber while removing the core distal from the open end of the chamber. The met... | 09/06/2011 |
| 7878271 | Drill bit A drill bit (20) for connection to a casing string (R), wherein the bit (20) comprises an annular bit face (21) which is built-up by a matrix and which comprises a sintered diamond-metal powder mixture, wherein the bit face (21) includes ... | 02/01/2011 |
| 7431107 | Coring bit with uncoupled sleeve A coring bit, including an outer hollow coring shaft, and a rotationally uncoupled internal sleeve disposed inside the outer hollow coring shaft. The rotationally uncoupled internal sleeve may be a non-rotating internal sleeve. The rotationally uncoupled internal sl... | 10/07/2008 |
| 7347284 | Apparatus and method for hard rock sidewall coring of a borehole The present invention is directed to an apparatus and method for coring a borehole in a hard rock sidewall of a well bore in a subterranean formation for testing purposes. The apparatus includes a drive motor for operation down hole, a flexible drive shaft coupled t... | 03/25/2008 |
| 7347281 | Coring tubular and method for reducing contamination and processing speed of a core sample Disclosed herein is a coring tubular. The coring tubular has a body, at least one opening hole radially oriented in the tubular body and a parting line in the tubular body. Further disclosed herein is a method for reducing contamination of a core sample. The method ... | 03/25/2008 |
| 7296638 | Orientation device for a core sample Core orientator for a core drill includes a face orientator and a bottom orientator supported by a shaft which extends into a shroud. A tubular extension is coupled to the shroud and is slidably coupled to a main body. The main body includes first and second latches... | 11/20/2007 |
| 7216725 | Soil sampling system and method that allow headspace screening at spaced intervals without disturbing soil sample A soil sampling system is provided that allows headspace screening of soil samples at spaced intervals along a soil sample liner without disturbing the soil samples to be collected and shipped to a laboratory for further testing. The soil sample liner includes a plu... | 05/15/2007 |
| 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 |
| 7174829 | Adjustable piston pump An adjustable piston pump for displacement and extraction of remnant from soft sand and or soft soil includes a pump casing cylinder that is capped at one end and opens at the other end. It includes a handle fixed to the pump casing cylinder, a shaft rod, a shaft ro... | 02/13/2007 |
| 7163070 | Drill head A drill head for use in drilling bores in mines and tunnels has a bit and at least one suction opening (5) for removing drillings and having a crushing profile. ... | 01/16/2007 |
| 7121356 | Tools and methods for retrieving buried coins and other treasure A “sod saver” tool for digging to acquire an object buried in the ground, and a non-metallic scraping tool utilized when carefully examining the soil. The sod saver tool includes a main cylindrical body rotated about its longitudinal axis for digging a substanti... | 10/17/2006 |
| 7093676 | Apparatus and methods for sponge coring A sponge core barrel for use in performing sponge coring and methods of assembling the sponge core barrel, as well as methods of performing sponge coring. The sponge core barrel includes an outer barrel assembly, a core bit secured to a lower end thereof, and an inn... | 08/22/2006 |
| 7083209 | Hydraulic overshot tool without a nozzle, and method of retrieving a cylinder The present invention provides an improved hydraulic overshot tool. The overshot tool mechanically engages a cylindrical body downhole attempting to be retrieved. In the event retrieval is unsuccessful, the overshot tool may be hydraulically released from the cylind... | 08/01/2006 |
| 7055626 | Core bit having features for controlling flow split A core bit for cutting core samples in subterranean formations. The core bit has interior geometric features configured to control the quantity of drilling fluid, or flow split, flowing into a narrow annulus defined by an inside diameter of the core bit and an outsi... | 06/06/2006 |
| 6968910 | Ultrasonic/sonic mechanism of deep drilling (USMOD) The present invention provides an ultrasonic and sonic mechanism of deep drilling (USMOD) that is driven by a vibrating actuator and operates in a similar manner to the gopher with regards to drilling debris removal. The actuator induces vibration in the form of a h... | 11/29/2005 |
| 6837312 | Corer-grinder A novel corer and grinder apparatus suitable for interplanetary travel and extraplanetary operation is disclosed. The corer grinder composes a claw element attached to a shaft coupled to a motor. A second motor compresses a spring forcing against a hammer unit that ... | 01/04/2005 |
| 6708784 | Core barrel valve assembly The present invention relates to a method for a valve, which valve comprises a movable valve body (6) having a first side (9) facing a means for supplying pressurized fluid and influenced in the supply direction by a force from said fluid, and a second... | 03/23/2004 |
| 6695075 | Soil sampler The soil sampler includes a sampling tube having a receiving space for receiving a soil sample, the receiving space being limited in a radial direction by a wall, being open in a distal direction for permitting soil to enter and in a proximal direction be... | 02/24/2004 |
| 6681873 | Core stabilization apparatus and method therefor A core stabilization apparatus and method are implemented. An inner barrel having a plurality of ports disposed circumferentially and axially in a wall thereof is provided. A gas manifold is attached to a first subsets of the ports. Gas is delivered to an... | 01/27/2004 |
| 6505693 | Soil sampler An apparatus for taking a soil sample includes a drill pipe, a first driving gear for introducing the drill pipe into the soil, a sampling bush which movably fits into the drill pipe and a second driving gear for introducing the sampling bush into the soi... | 01/14/2003 |
| 6443243 | Core stabilization apparatus and method therefor A core stabilization apparatus and method are implemented. An inner barrel having a plurality of ports disposed circumferentially and axially in a wall thereof is provided. A gas manifold is attached to a first subsets of the ports. Gas is delivered to an... | 09/03/2002 |
| 6378631 | Apparatus for recovering core samples at in situ conditions A pressure and temperature core sampler comprises a tool for recovering cores specifically enabling the evaluation of methane hydrate resources. Because methane hydrate tends to decompose under conditions of pressure decrease and/or temperature increase a... | 04/30/2002 |
| 6341656 | Core barrel The invention concerns a core barrel, in particular in the field of oil exploration, comprising at least an outer tube (2) and a core bit (3) forming an outer assembly (4) and at least an inner tube (5) forming with a drilling core optionally present ther... | 01/29/2002 |
| 6305482 | Method and apparatus for transferring core sample from core retrieval chamber under pressure for transport A pressure and temperature core sampler comprises a tool for recovering cores specifically enabling the evaluation of methane hydrate resources. Because methane hydrate tends to decompose under conditions of pressure decrease and/or temperature increase a... | 10/23/2001 |
| 6145604 | Core Machine Core machine intended particularly to the oil prospection field, comprising a core crown (2), an external tube (3) for the rotational driving of the core crown (2), and an internal tube (4) having a free front end element (7) intended to receive a core (5... | 11/14/2000 |
| 5957221 | Downhole core sampling and testing apparatus A coring apparatus permitting the taking of a non-rotating core sample and testing of same, as by NMR, prior to breakage and ejection from the apparatus. A core barrel is suspended from a rotating outer sleeve by one or more bearing assemblies which permi... | 09/28/1999 |
| 5667025 | Articulated bit-selector coring tool A multiple coring bit tool and method for taking multiple core samples of a formation traversed by a borehole in one well logging run. In this tool, multiple coring bits are used to cut the core samples. One bit is used to cut each sample. Once the core s... | 09/16/1997 |
| 5474140 | Soil sampling probe The present invention is a soil sampling probe where a conical piston is kept at the opening to the sampling container by a first threaded portion near the top of the piston rod which engages a threaded opening near the top end of the container. With the ... | 12/12/1995 |
| 5445229 | Method and apparatus for drilling, cracking, and withdrawing earth cores A method and apparatus for drilling, cracking, and withdrawing solid each cores, the method commencing with coring the earth using a conventional rotary core drill (20). The core drill is withdrawn to leave an attached earth core (26) and a drilled core g... | 08/29/1995 |
| 5439065 | Rotary sidewall sponge coring apparatus The invention is an apparatus for rotary drilling of core samples from the wall of a wellbore. The apparatus comprises a coring bit, a motor, a bit box rotatably mounted within a housing adapted to traverse the wellbore, a plunger for extracting the core ... | 08/08/1995 |
| 5325930 | Overcenter toggle latch apparatus A drilling tool, for example a core barrel inner tube assembly or a drilling bit, is attached to the inner end of a latch body which is removably seatable on a landing shoulder of a drill string. The inner end of the latch body mounts a drilling tool such... | 07/05/1994 |
| 5211249 | Apparatus and method for obtaining subterranean samples The present invention provides an apparatus and method for obtaining a subterranean material sample. The inventive sampling apparatus comprises an elongate housing having a passageway extending longitudinally therethrough, a tip member movable through the... | 05/18/1993 |
| 5206505 | Apparatus and method for retrieving and evaluating a slim hole drilled core sample of a subsurface formation A coring tool is lowered to the bottom of a wellbore through a subsurface formation. A coring bit at the lower end of the coring tool draws a core sample of the subsurface formation at the bottom of the wellbore into the coring tool. A coring barrel is po... | 04/27/1993 |
| 5186263 | Soil sample probe A device for obtaining soil samples beneath the surface of the ground. A sample tube is provided with a removable piston tip blocking the forward opening of the sample tube. Rearward movement of the piston tip is blocked by a removable piston stop. The sa... | 02/16/1993 |
| 4989678 | Soil sampling kit and a method of sampling therewith A soil sampling device and a sample containment device for containing a soil sample is disclosed. In addition, a method for taking a soil sample using the soil sampling device and soil sample containment device to minimize the loss of any volatile organic... | 02/05/1991 |
| 4953637 | Apparatus for recovering ground soil samples The apparatus includes a sample-holder comprising a tube (16) of thin aluminum, and a piston (12) slidable in the tube. The piston is mounted on a solid, robust piston rod (14). To drive the apparatus down to the depth at which the sample is to be taken, ... | 09/04/1990 |
| 4836299 | Sonic method and apparatus for installing monitor wells for the surveillance and control of earth contamination A well casing of an elastic metal material is placed in concentric relationship with a casing of an inert material such as a suitable plastic. A penetrating cap piece is placed on the bottom end of the metallic casing. The two concentric casings are then ... | 06/06/1989 |
| 4790396 | Rotary drill bits for use in coring holes in subsurface formations A rotary drill bit for use in coring holes in subsurface formations comprises a bit body having a shank for connection to a core barrel, an outer peripheral gauge portion for engagement with the peripheral wall of the hole being drilled, an inner peripher... | 12/13/1988 |
