Class 294/86.24 - Expanding grapple means

Subclass of Class 294 - Handling: hand and hoist-line implements
Definition: Grapples having a grappling means that is movable laterally
No. of patents: 29
Last issue date: 07/24/2007

Number	Title	Issue Date
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
7198311	Elevator for pipe An elevator for lifting pipe having an exposed bottom edge or an internal groove. A channel member has one end hingedly connected to a rod adjacent a first end of the rod and has a second end connected to a sector-shaped plate. A tubular member is slidably positione...	04/03/2007
7191840	Casing running and drilling system A method and apparatus for holding and turning a tubular and string of tubulars, such as casing, for make-up and drilling with the tubulars are disclosed. The apparatus generally includes a spear and a clamping head, both of which are mounted to a top drive. The spe...	03/20/2007
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
7096951	Method and apparatus for retrieving an object from a well bore A fishing tool apparatus for retrieving an object from within a well bore, wherein the object has an opening for receiving the apparatus, comprises a support rod, an expandable sleeve, and a biasing means. The expandable sleeve may be externally threaded for engagin...	08/29/2006
6962326	Gypsum board remover A tool for removing gypsum board according to the present invention includes an elongated handle, a substantially flat extension extending from and attached to one end of the elongated handle, a hinge having a first side and a second side, affixed on the first side ...	11/08/2005
6742584	Apparatus for facilitating the connection of tubulars using a top drive An apparatus for facilitating the connection of tubulars using a top drive, which apparatus comprises a body (2; 102) connectable to said top drive, said body (2; 102) comprising at least one gripping element (5; 105) radially displaceable by hy...	06/01/2004
6719044	Wear bushing running and retrieval tools Devices and methods for selectively emplacing a wear bushing in a wellhead housing and removing it therefrom. A drill string-mounted running tool is used to selectively engage the wear bushing during emplacement and removal. The wear bushing need not be removed each...	04/13/2004
5947202	Method and apparatus for engaging an object A device for latching onto a down hole object located within a well bore is claimed. The device will include a mandrel connected to a work string and with an end adapted to engage the object. The device also includes a biasing member disposed about the ma...	09/07/1999
5044438	Wellhead bowl protector and retrieving tool A wellhead protection system is disclosed including a wear bushing and retrieving tool. The wear bushing is supported in the wellhead and defines an enlarged upper portion for receiving the retrieving tool. The retrieving tool carries at least one retract...	09/03/1991
4750770	Device for connecting a drill column to a pipe or the like An actuating system for operating pressure-medium actuated coupling members for remotely connecting a drill column to a pipe or pipe casing, where the location of the connection is inaccessible, comprises a directional control valve (48) switchable by an ...	06/14/1988
4728217	Gripper apparatus and method A gripper with leaf springs having fingers near their ends to engage and disengage work. The springs are respectively connected in an annular array to the end of a cylindrical support. The springs are diverged or expanded to cause the fingers to engage th...	03/01/1988
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
4682806	Quadruple gripper A central base of a gripper is adapted to be attached to a robot wrist flange. Carriage rods and stabilizing bars extend outwardly, on both sides of the central base. Sliding carriages, which move along the carriage rods on linear bearings, each carry two...	07/28/1987
4591197	Wire line running and/or pulling tool These are disclosed three embodiments of a wire line tool for use in running and/or pulling a well tool within a well bore. In each embodiment, latches are carried about a body of the wire line tool and yieldably urged from inner positions, in which their...	05/27/1986
4580826	Retrieval tool A retrieval tool to retrieve loose pipe and the like from a well. A bell-mouth centering device is sent down the hole to center the pipe, and a spear passes through the centering device into the pipe. Gripping devices carried by the spear engage the pipe ...	04/08/1986
4500078	Chimney flue insertion apparatus Multi-legged apparatus for frictionally engaging the interior of a chimney flue liner and inserting same in a chimney via a stanchion or multi-sectioned rods. Each L-shaped leg is containably and rotatably mounted to a center threaded rod. The legs are ex...	02/19/1985
4418770	Process for retrieving a coring barrel comprising two tubes and retrieving device for such a process An inner tube 2 of a core barrel is releasably locked within an outer tube 1 by pivotable latch feet 32 engaging an annular recess 31 in the outer tube. A retrieving head 3 is slidably coupled via a pin 40 and slot 41 to the inner tube, and carries sealin...	12/06/1983
4400112	Connecting and disconnecting device for a guide line The invention relates to installation of underwater equipment, more specifically for use in oil-fields. This new device for connecting and disconnecting a guide line between an installation on the seabed and a floating platform comprises a cylindrical ada...	08/23/1983
4397494	Fishing tool to retrieve cables from wells A fishing tool to snag and to retrieve cables from wells. The tool includes an elongated body which has two ends, a substantial length, and peripheral boundary of lesser lateral dimensions than a well down which the tool is to be sent with the first of it...	08/09/1983
4377207	Tubing anchor A tubing string anchor (20) is provided for anchoring a tubing string (14) within a well bore (10). This prevents motion of the tubing string during a pumping operation. The anchor (20) includes a support (26) for mounting a number of roller assemblies (3...	03/22/1983
4361353	Method and apparatus for retrieving wear bushings of various diameters The present invention relates to a method and apparatus for retrieving wear bushings of various diameters and configurations with a single retrieving tool. The apparatus comprises an elongated member having first and second ends and having a generally cyl...	11/30/1982
4133398	Collapsible spider for use in supporting casing during upward drilling operations During upward drilling operations the casing for the hole is, at times, supported from the drill stem from which the cutterhead is operatively driven. A collapsible spider is placed about the drill stem and supported therefrom, and has extension arms whic...	01/09/1979
4113010	Casing stop for well tools and an insertion device therefore A well anchor for use in a cased well having anchor members of bowed springs and a vertically reciprocable rod actuator movable from the surface to set the anchor....	09/12/1978
4050731	Shifting apparatus Apparatus is provided having particular use in conjunction with setting of longitudinally extendable piling units for anchoring an offshore platform for subsequent use in drilling, production, completion and workover of a subterranean well. The apparatus ...	09/27/1977
4035089	Mechanism for varying the finger grip area of a writing implement The mechanism for varying the diameter of a body in accordance with this invention is defined by a mechanism in which the grip area intended for expansion comprises a plurality of compressible O-ring elements supported by a cylindrical body section and sp...	07/12/1977
4006930	Manipulator for hollow objects A device for gripping the interior of a tubular object to pull it out of a body in which it has become stuck includes an expandable rubber tube having a plurality of metal cables lodged in the exterior of the rubber tube so as to protrude slightly therefr...	02/08/1977
3981471	Hanger device A single-piece hanger is disclosed. The hanger comprises a single piece of resilient metal formed in an generally "J" shape and defining opposing legs, joined at a closed end of the J by a bend from which the opposing legs extend at angles from one-anothe...	09/21/1976
3944273	Retrieving tool for wellhead packing A retrieving tool has resilient fingers engageable with a pulling collar of the actuator ring of a wedge locked underwater wellhead packing to release the lock and the packing for retrieval from the wellhead. The retrieving tool has a body connected to a ...	03/16/1976

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Class 294/86.24 - Expanding grapple means