Bizarre Patents
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.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7311346 | Arrangement in a gripper mechanism for a free pipe/rodlike end portion of a downhole tool A gripper mechanism (22) suspended in a coiled tubing/wireline in a well serves to releasably hold a downhole tool or other piece of equipment positioned downstream, via a tubular connecting element (10). The gripper mechanism (12) comprises axi... | 12/25/2007 |
| 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 |
| 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 |
| 6425615 | Overshot tool There are disclosed two embodiments of an overshot tool for use in recovering a fish within a well bore, wherein a radially expandable and contractible grapple having helical tapered outer surfaces is seated upon a bowl within an intermediate portion of a... | 07/30/2002 |
| 6196309 | Down hole pulling tool and method of use An apparatus for pulling objects from a well is described. The apparatus may comprise an elongated housing having an internal chamber. The housing will be connected to a work string such as wireline or coiled tubing. A skirt is attached to the housing, wi... | 03/06/2001 |
| 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 |
| 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 |
| 5580114 | Hydraulically actuated fishing tool A fishing tool is disclosed which is responsive to hydraulic pressure to move away support for collets to allow the collects to deflect and make contact with the stuck object. Upon removal of the hydraulic force, the support for the collets is returned, p... | 12/03/1996 |
| 5265927 | Downhole fishing tool A sucker rod coupling retrieval tool which includes a cylindrical slip bowl having an axially offset cylindrical bore in one end. The opposite end is threaded onto the lower end of a top sub which defines an internal bore receiving an annular bearing. A s... | 11/30/1993 |
| 5085479 | Vertically manipulated ratchet fishing tool A ratcheting fishing tool having a generally cylindrical body connected with and housing a rotary ratcheting device along with an operating shaft axially mounted to reciprocate within the body and also connected to the ratcheting device. A fish grappling ... | 02/04/1992 |
| 5054832 | Fishing tool for retrieving implements from a hole A fishing tool for retrieving broken or lost implements from a drilled hole includes a one-piece body having a bore extending from one end to the other. Oppositely positioned and inwardly directed male keys extend from the inner surface of the bore. The m... | 10/08/1991 |
| 5054833 | Releasable overshot A releasable overshot having independent slips, for retrieval of downhole tools and other equipment, which can be operated with a wireline, tubing, coiled tubing, or drill pipe string.... | 10/08/1991 |
| 4976482 | Apparatus for clamping pipe or tube An apparatus including wedges with buttons and cooperating guide blocks positioned about halfway along the length of the wedges between the buttons, each block including a projection on one side of the wedge and a recess on the other side, for clamping he... | 12/11/1990 |
| 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 |
| 4885123 | Apparatus for handling constituent elements of reactor core The present invention provides an apparatus for handling core constituent elements of a reactor that comprises a core having as core constituent elements control rod assemblies each containing a control rod and fuel assemblies each containing nuclear fuel... | 12/05/1989 |
| 4883118 | Combination tubing cutter and releasing overshot A mechanical tubing cutter for severing and retrieving fish from wells comprises a slip body for clamping the upper end of the fish, and cam-actuated cutter knives for severing the fish below the slip body. The clamping and cutting operations occur in an ... | 11/28/1989 |
| 4801167 | Downhole well fishing assembly A fishing assembly for use in retrieving a separated or broken sucker rod from a well comprising a body member having a cavity in which a slide member is disposed therein for reciprocation within the body member. An entrance port is formed in the lower en... | 01/31/1989 |
| 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 |
| 4558895 | Pulling tool A pulling tool for retrieving well tools from a well bore. The present invention allows the reach of the pulling tool to be easily varied. The pulling tool can also be assembled for emergency release by either upward or downward shearing forces. The weigh... | 12/17/1985 |
| 4548437 | Downhole well fishing assembly A fishing tool comprising a body member having an offset entrance port into a cylindrical cavity that contains a slide member having a trough-shaped lower portion positionable adjacent the entrance port in either of two diametrically opposed angular posit... | 10/22/1985 |
| 4476086 | Coupler for nuclear reactor absorber rods Coupler for absorber rods being suspended during operation of nuclear reactors including a plurality of actuating elements being movable for individually and jointly releasing the coupler, the movement of each of the actuating elements for releasing the c... | 10/09/1984 |
| 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 |
| 4436334 | Releasing overshot apparatus In accordance with an illustrative embodiment of the present invention, a releasing and retrieving apparatus for a pack-off tool used in pipe testing operations includes a tubular body having slots in the walls thereof, each slot having an inclined surfac... | 03/13/1984 |
| 4351631 | Transfer device for parisons and finished products in injection blow molding devices A transfer device for open neck plastic parisons and finished articles in injection blow molding equipment. The device includes a core or pin which is attached to a plate and can be inserted into the parison or finished article. A collet is included which... | 09/28/1982 |
| 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 |
| 4259153 | Device for removal of fuel assemblies and cans of control and safety system from core of nuclear reactor The proposed device for the removal of fuel assemblies and control and safety system cans from the core of a nuclear reactor comprises a hollow bar, wherein there is installed a main grip adapted for axial movement relative to the bar. At the end of the h... | 03/31/1981 |
| 4232894 | Selectively releasable overshot and pull tool A pulling tool for retrieving an article or fish from a well bore and utilizing a spear or grapping type action to establish connection with the fish. Cooperative internal and external tubular members are selectively movable to secure the pulling tool to ... | 11/11/1980 |
| 4185865 | Releasable wireline overshot An overshot adapted to engage and disengage a fishing neck in a well bore. The apparatus comprises an overshot body, a set of collet fingers which deflect radially and have a surface to grasp a fish in a well bore, a tapered surface abutting the collet fi... | 01/29/1980 |
| 4124245 | Well tool A well tool of the type comprising a plurality of radially extendable and retractable gripping elements and deflecting means for radially moving the gripping elements by longitudinal movement with respect thereto. The tool comprises a camming mechanism fo... | 11/07/1978 |
| 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 |
| 4023847 | Overshot tool An overshot tool having a cylindrical grapple seated within the bowl of a tubular body, each of the grapple and bowl having longitudinal slots extending from each end thereof, and tangs being carried within the body and extending into the slots to limit r... | 05/17/1977 |
| 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 |
| 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 |
| 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 |
