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| Number | Title | Issue Date |
| 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 |
| 6079932 | Corrosion resistant spare tire storage and retrieval system and safety latch assembly for a vehicle, and method of using same A support member for supportively holding a spare tire beneath a vehicle includes a platform section having a cutout area formed therein, the cutout area having an upper cutout portion and a lower cutout portion; and an insert which fits engagingly into t... | 06/27/2000 |
| 5605366 | External pulling tool and method of operation An external pulling tool for retrieving a fish from a wellbore comprises a mandrel fixedly secured to an upper sub, an outer cover fixedly secured to and depending from the upper sub, a collet assembly telescopically surrounding the bottom portion of the ... | 02/25/1997 |
| 5249625 | Soft set overshot fishing tool A fluid operated overshot with an outer metal mandrel internally supports a resilient internal sleeve. The sleeve telescopes over a fish to grip the fish on expanding radially inwardly. This expansion is fluid powered by applying a force to the inner slee... | 10/05/1993 |
| 5221099 | Device for conducting forces into movable objects The jaws of a clamp are provided with elastomeric linings, and gripping elements of high hardness in the form of pins or particles are embedded in the linings. The gripping elements have tips which are directed away from the respective jaws.... | 06/22/1993 |
| 5149163 | On and off fishing tool A fishing tool for composite sucker rod has a four fingered collet. An overshot tube is connected to the top of the fishing tool. The top of the collet has a stack telescoped within a helical spring. A fish deep within a well has a splintered partial join... | 09/22/1992 |
| 5106140 | Oil-field wireline fishing tool The present invention is an oilfield wireline fishing tool with expansible wings. The wings open up in umbrella fashion after leaving production tubing allowing the fishing tool to cover the entire diameter of the well casing. Upon reentry into tubing the... | 04/21/1992 |
| 5024277 | Running tool for use in well bores A running tool and method for the use thereof in locating apparatus in a well bore includes an elongated hollow tool body and outer sleeve encircling the body; a mandrel disposed within the body and sleeve and carrying a collet on the lower end thereof wh... | 06/18/1991 |
| 4991649 | Oil well packer retriever An oil well packer retriever has a packer miller (6) which has a series of fin-like blades radiating from a central tube string (2). The blades are faced with tungsten carbide and in use these mill away the packer allowing it to drop by gravity. A packer ... | 02/12/1991 |
| 4860838 | Latching bit sub A drill bit latch assembly for releasably securing an earth drill bit to the bottom end of a drill string comprises a tubular housing adapted to be secured to the bottom end of a tubular drill string, drill bit holder adapted to be secured to a drill bit,... | 08/29/1989 |
| 4660863 | Casing patch seal A casing patch for providing a connection between two casing sections which comprise a body means adapted to fit over an existing casing in a well bore and guide the patch into place, a slip means actuated by upward movement of the second casing section t... | 04/28/1987 |
| 4382623 | Apparatus for retrieving fluid plug A method and apparatus are disclosed for sequentially treating two vertically separated zones in a well bore, utilizing a packer having a fluid passageway therethrough set between the zones, a pressure shearable plug at the lower end of the packer, and a ... | 05/10/1983 |
| 4332410 | Retrieving tool for well packer A retrieving tool is provided for effecting the retrieval of a packer from a well and includes a locking member, such as a conventional locking collet having expandable fingers for sliding over a downwardly facing shoulder on a seal nipple secured to the ... | 06/01/1982 |
| 3942833 | Running tools A running tool for setting and retrieving well devices in and from wells having a mandrel reciprocable in its axial bore and slips suspended from the mandrel for reciprocation therewith into and out of supporting engagement with a well device, the bore in... | 03/09/1976 |
| 3930679 | Dry hole wire core barrel apparatus Wire line core barrel apparatus that includes a wire line core barrel inner tube assembly movable through a drill stem to be seated in a latched core taking position adjacent the drill stem core bit, and a main overshot assembly that is coupled to a lower... | 01/06/1976 |
