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| Number | Title | Issue Date |
| 7665785 | Column pipe catch tool A catch tool for retrieval of a well column pipe having a pipe wall, the catch tool incorporating a fork having a pair of spaced tines; and a pair of clamping pivot arms connected operatively to the fork, the clamping arms being adapted for, upon the receipt by the ... | 02/23/2010 |
| 7427091 | Spear head overshot for use in a cable guided fishing assembly Disclosed is an improved spear head overshot. The spear head overshot is particularly useful as part of a cable-guided fishing assembly. The spear head overshot essentially comprises one or more pivot lugs, the pivot lugs comprising jaw sections and release point se... | 09/23/2008 |
| 7305756 | Tube extracting device The invention is related to a tube extracting device for compressing a tube end extended from a conventional drum of a boiler to remove the tube. The device includes a housing comprised of an outer clamping plate and an inner clamping plate pivotally connected by a ... | 12/11/2007 |
| 7246398 | Apparatus and method for removing an object from a drain An apparatus and method for removing an object from a drain for includes a pair of arms each having a first end, a second end, a medial portion, a first side and a second side. Each of the first sides is convexly curved. A pivot member extends between and is pivotal... | 07/24/2007 |
| 7246663 | Positive engagement indicator for wireline fishing operations A device and method for retrieving a tool string from downhole locations through the use of one or more engagement sensors. The one or more engagement sensors are activated by the tool string engaging an overshot device. The one or more engagement sensor may be mech... | 07/24/2007 |
| 7140445 | Method and apparatus for drilling with casing Methods and apparatus for drilling with a top drive system are provided. In one aspect, a top drive system includes a top drive, top drive adapter, and a tubular positioning apparatus. In another aspect, the top drive adapter is pivotably connected to the top drive ... | 11/28/2006 |
| 7077204 | Whip retrieval method and apparatus The retrieval tool includes a cylindrical member having a body, an inner passage, a guide cylinder and an engaging member. The engaging member may slide within the cylindrical member in order to frictionally engage a whipstock against an inner surface of the guide c... | 07/18/2006 |
| 7000339 | Demolition equipment having universal tines and a method for designing a universal tine A claw tine for demolition equipment includes an elongated claw tine pivotally movable about a pivot point between an open and closed position by a hydraulic cyliner. The total angular rotation of the claw tine is at least 75 degrees, generally between 75 and 100 de... | 02/21/2006 |
| 6997493 | Lockable overshot Lockable overshot (10) includes an elongated body (12), lifting dogs (14a, 14b) and a locking sleeve (16). Ends (18) of the lifting dogs (14) are configured for latching a conventional spearhead point th... | 02/14/2006 |
| 6942035 | Method and apparatus for retrieving equipment from a well A method for the retrieval of an object from a well (16) with a tool (30) is described, in which the object, by lowering of the tool (30), is directed into a lower inlet section (40) to a hollow holding area (46) in the tool (30... | 09/13/2005 |
| 6588623 | Container carrier The present invention is directed to a novel device for carrying a large container such as a water cooler bottle. The device comprises a collar with two pivotly connected jaws configured to engage the neck of a water cooler bottle. A handle is secured to ... | 07/08/2003 |
| 6530578 | Gripping arrangement The present invention relates to an arrangement (1) for gripping and holding or releasing a material (M), such as material held in a lathe chuck. The arrangement includes a piston-cylinder assembly (2) and a plurality of material gripping and holding or r... | 03/11/2003 |
| 6095583 | Wellbore fishing tools An apparatus for retrieving an object from a wellbore has been invented having an inner body and a longitudinal fluid flow bore therethrough, and at least one lateral flow bore therethrough, the bottom end having an opening suitable for receiving therein ... | 08/01/2000 |
| 6059336 | Hydraulically actuated mechanical coupler A connector unit is disclosed which comprises a shaft, a plurality of collet fingers, and a sleeve. The plurality of collet fingers are peripherally positioned against the generally cylindrical outside surface of the shaft adjacent the lower end of the sh... | 05/09/2000 |
| 5375897 | Well pipe elevator for well drilling A well pipe elevator comprises a ring having an interior volume and adapted to be fitted over a pipe from above and one or more tongues carried by the ring. The tongue mounted for movement between a retracted position (I) for fitting the elevator to the p... | 12/27/1994 |
| 4944543 | Ice auger extractor for retrieving augers or similar devices from a bore hole An ice auger extractor for retrieving augers or similar devices from a bore ole includes a cylindrical housing and a spring-biased locking cam positioned in a vertically extending recess. The recess is substantially L-shaped and extends in a portion of per... | 07/31/1990 |
| 4715880 | Take out mechanism for glassware forming machines A take-out mechanism of particular utility in a glassware forming machine is provided by a ring-shaped member having pivotally mounted gripping fingers mounted on an inner periphery thereof, the gripping fingers being moveable between a retracted position... | 12/29/1987 |
| 4710218 | Take-out tong head assembly A take-out tong head assembly for a glass blowing machine is mounted in a take-out mechanism for omni-directional adjustment of the tong head assembly in a plane perpendicular to the vertical axis of the blow molds for the purpose of eliminating checks in... | 12/01/1987 |
| 4700775 | Dual-action retrieving tool for oil well swabs Apparatus and method for a tool that will retrieve either an oil well swab or the down-hole stand which limits the working depth of the swab.... | 10/20/1987 |
| 4618471 | Electromagnetic safety device of a screw/nut type A safety device to be applied to the vertical displacement of, for example, the control rods of a nuclear reactor, comprises the combination of a stator placed on the outside upper part of an impervious, nonmagnetic cylinder within the inside of which a r... | 10/21/1986 |
| 4453756 | Wireline fishing tool A wireline fishing tool for retrieving a fish or object from an inaccesible loction as a broken drill bit deep in a well comprises an elongated rod with two toothed jaws pivotally connected to the lower end thereof and being extendible from a bell shaped ... | 06/12/1984 |
| 4452478 | Nuclear waste storage process and system A system to transport and deposit nuclear wastes for disposal into abandoned or dry oil wells or other wells or deep holes. The system includes a device for connecting to a canister which holds nuclear waste material, for transporting the canister to a we... | 06/05/1984 |
| 4157199 | Apparatus for retrieving a tubular member from a well Apparatus for grasping the exterior surface of a tubular member to facilitate removal thereof from within a well is characterized by a substantially hollow, elongated housing having first and second flapper members pivotally mounted within the housing for... | 06/05/1979 |
| 4061389 | Combination wire line releasable overshot and pull tool A wire line oil tool adapted for multiple connectors on the bottom. It can be used as an overshot, a fishing neck grapple or an inside grapple. It incorporates an outer body which is annular about a central member. A catch mechanism locks the outer body u... | 12/06/1977 |
| 4004835 | Overshot An improved overshot for grappling a fishing neck is disclosed. A fishing neck has an undercut shoulder with a protruding enlarging thereabove. This disclosure is directed to an overshot having an upper body and a fixed inner tubular sleeve. The tubular s... | 01/25/1977 |
| 3950020 | Gripping device A gripping device for gripping and moving control bars and fuel elements in core reactors in which a pair of grippers are mounted on one end of a gripper housing with independent actuators for the grippers in the housing. A lost motion connection between ... | 04/13/1976 |
| 3950021 | Pulling and running tool In accordance with an illustrative embodiment of the present invention as disclosed herein, a wireline pulling and running tool can be preset at the surface by simple adjustment for functioning as either a pulling or a running tool, and for release from a... | 04/13/1976 |
| 3941413 | Quick release latch for reactor scram A simple, reliable, and fast-acting means for releasing a control element and allowing it to be inserted rapidly into the core region of a nuclear reactor for scram purposes. A latch mechanism grips a coupling head on a nuclear control element to connect ... | 03/02/1976 |
