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Match Document Document Title
8161846 Apparatus and methods for spinning a pipe  
Apparatus and methods for rotating or spinning a tubular. In some embodiments, the apparatus, referred to herein as a pipe spinner, includes a body, an arm pivotally coupled to the body, and an...
8015901 Tie rod adjustment open-end wrench  
A clamping mechanism includes a pair of contact portions facing each other which is capable of directly contacting a tie rod hexagonal portion, and an open-close drive mechanism that causes the...
8011426 Method of gripping a tubular with a tubular gripping mechanism  
A method for gripping a tubular with a tubular gripping mechanism includes the steps of moving the tubular gripping mechanism adjacent the tubular, positioning a jaw assembly of the tubular...
8006590 Open-faced rod spinner  
An open-faced rod-spinning device configured for making and/or breaking joints between threaded drill rods. The rod-spinning device may include a drive gear with an open face. The drive gear may...
7975572 Methods and apparatus for make up and break out of tubular connections  
A gripping apparatus and a method apparatus for making up and breaking out tubular connections. In one embodiment, the gripping apparatus comprises an outer gear, a plurality of rollers coupled to...
7762160 Power tong cage plate lock system  
An open-throat power tong for making up or breaking apart an oilfield tubular connection, includes a cage plate lock system. The lock system connected to each cage plate extends across the space...
7717014 Torque drive for making oil field connections  
A power tong system for precisely making up a connection between two elongated elements, such as sucker rods, into an operative string for petroleum well installations. High precision is attainable...
7707914 Apparatus and methods for connecting tubulars  
A method and apparatus for handling tubulars is provided. In one aspect, the present invention provides a spinner having a first arm having a first roller and a second arm having a second roller,...
7707913 Method of disconnecting a pipe length  
A method of using a power tong (2) for use in the pipe make-up and pipe break-out of pipe lengths (22) during drilling in the ground as it is known from, for example, the recovery of petroleum, the...
7621202 Method and apparatus for forming tubular connections  
The apparatus of the present invention is directed to a replacement cage assembly (106) to modify a conventional power tong (100) to enable the power tong to grip and rotate smaller diameter...
7395855 Radially moving slips  
Slips (1, 21, 41) for engaging any jointed, coiled or flexible tubular with substantially no scoring, gouging or scraping, such as when supporting a drill string in a borehole or gripping a tubular...
7255025 Power tong with sliding jaw  
A power tong (1) or back-up tong has a sliding jaw assembly (6) that may be advanced into the throat (4) of the tong for engagement with a pipe. A camming surface (11) on the inside circumference...
7237456 Power tong with reduced die markings  
A power tong 10 rotates a tubular during makeup or breakout of the threaded connection. A tong frame 12, a rotatable ring 20, and a cage plate assembly may each have an open throat for receiving...
7219580 Cam follower for power tongs and other uses  
A power tong or back-up tong has a jaw assembly that is advanced into engagement with a pipe through a cam follower that contacts the camming surface on the inside circumference of a ring gear, the...
7204173 Rotatable die tong jaw  
Power tong jaws comprising one or more dies which are rotatable.
7017450 Tong jaw and a method for constructing the tong jaw  
A method for constructing a power tong jaw, including the steps of: (1) providing a substantially flat upper plate and a substantially flat lower plate; (2) providing at least two separately formed...
6990876 Power tongs  
A power tong apparatus for rotating a pipe comprises a tong housing and a ring gear, rotatably mounted in the tong housing. A top cage plate is positioned above an inner portion of the ring gear...
6988428 Power tong with linear camming surfaces  
In a pivoting-jaw power tong, each primary camming surface of the rotary gear has a substantially linear rather than curved configuration. Each primary camming surface forms an acute angle with a...
6814149 Apparatus and method for positioning a tubular relative to a tong  
An apparatus and a method for positioning a tubular relative to a tong is provided. In one aspect, a positioning tool may be mounted on a lower portion of the tong. The positioning tool includes a...
6761090 Camming system for power tong jaws  
A power tong or back-up tong has a jaw assembly that is advanced into engagement with a pipe through a cam follower that contacts the camming surface on the inside circumference of a ring gear, the...
6619160 Sliding jaw adaptor for pivoting jaw power tong  
A jaw adapter for use in a pivoting jaw power tong having a cage plate designed to house a pivoting jaw member. The jaw adapter includes an adapter body shaped to fit between the cages plates of a...
6332377 Gripping arrangement for gripping casing  
A gripping arrangement for gripping casing is both sufficiently flexible to conform to said casing and substantially inelastic. In a preferred embodiment the gripping arrangement comprises a sheet...
6330911 Tong  
A tong for rotating tubulars, the tong having, in certain embodiments, a tong outer case, a rotary movably mounted in the case for rotating a tubular, apparatus for rotating the rotary to rotate...
6279426 Power tong with improved door latch  
An open throat power tong 10 for making up and/or breaking apart an oilfield tubular connection includes an open throat in the tong body 15. Motors 18, 20 rotate a partial ring member 12 and a pair...
6237445 Gripping apparatus for power tongs and backup tools  
Apparatus for gripping tubular members including self aligning gripping jaws with high coefficient of friction for resisting force applied to the elongated member to prevent rotation either...
6082224 Power tong  
A new power tong for rotating tubular members for make-up (connection) and break-out (disconnection) operations. In one aspect such a tong has at least one movable jaw with a smooth surface...
6070500 Rotatable die holder  
A jaw assembly is provided for a power tong or back-up tong to make up and break out a pipe section. The jaw assembly includes a jaw element for transferring torque from the tong to the pipe...
6058811 Power tong with improved door mechanism  
An open throat power tong includes a tong body 15 having an open throat 17 therein, a partial ring member 12 for rotating a tubular during a makeup or breakout operation, at least two heads 16...
5904075 Interlocking jaw power tongs  
The present invention provides an improved power tong a body having with a rotating assembly. The power tong further has a plurality of jaw members positioned within the rotating assembly with two...
5865073 Torque machines  
A torque machine, for making or breaking screw-threaded joints between lengths of pipe, includes a rotatable head having an aperture into which a length of pipe is introduced, the rotatable head...
5845549 Power tong gripping ring mechanism  
A multi-sectioned, bidirectional gripping ring for a closed-head power tong is disclosed of the inventive gripping ring have an open position in which a pipe may be placed within or removed from...
5819605 Low friction power tong jaw assembly  
The present invention provides an improved power tong jaw having a jaw body with a roller aperture formed therein. A jaw roller is positioned in said roller aperture by some type of retaining...
5435213 Ring gear camming member  
A camming member for power tongs, comprising a ring-shaped body including a central opening formed therein, the body being .rotatable about a point within the central opening, the body further...
5394774 Power tong with interchangeable jaws  
A power tong that is adaptable to smaller sizes by installing an auxiliary camming assembly against the principle camming surface within the rotary. This auxiliary camming assembly preferably is...
5231899 Drilling rig breakout wrench system  
A pair of bi-directional breakout wrenches on a drilling rig, each wrench including a body member having an inside cam surface with a plurality of locking cogs positioned around the cam surface,...
5207128 Tong with floating jaws  
A tong, preferably a power tong, with one or more floating jaws which are releasably retained on and selectively movable with a rotary device; in one aspect the jaws having a compound jaw camming...
5161439 Pivoting jaw assembly  
Interfering bosses are provided on the jaw and jaw link forming a pivoting jaw assembly for a power tong or back-up. The bosses are arranged to interfere and prevent over-center rotation of the jaw...
5150642 Device for applying torque to a tubular member  
A device for applying torque to e.g. a screw-threaded pipe includes a pair of gripping jaws pivotally mounted on a cage and carrying respective followers engaging cam surfaces on the radially inner...
5044232 Active jaw for a power tong  
An active jaw for a power tong is provided with an upper cam and a lower cam which are shaped so that rotation of the rotary relative to the active jaw in either sense from a first position results...
5027926 Slip assembly  
An hydraulically operated slip assembly useful to grip pipe being run into or pulled from a well. This assembly has upper and lower plates, each having a passage for pipe. Wedges, carrying unique...
4986146 Camming member for power tongs  
A camming member for power tongs is provided, comprising a body including a central opening formed therein, the body being rotatable about a center point within the central opening, the body...
4932292 Sucker rod tool  
A double ended socket has a tapered spline bore in each end thereof. A square hole at a midpoint internal flange provides means for attaching the socket to an impact wrench for removing a thread...
4869137 Jaws for power tongs and bucking units  
The invention relates to an improved jaw construction for power tongs and bucking units wherein the jaws include a pair of gripping pads which are mounted to the jaws with a resilient insert so...
4836064 Jaws for power tongs and back-up units  
An improvement is made to jaw designs for power tongs and back-up units. The jaw is formed having a cavity whose opening is oriented toward the pipe to be gripped. An elongated die is movably...
4827808 Rotor assembly for power tong  
A rotary power tong for use in well drilling operations to make up and break out drill strings or similar axially elongated objects having a housing receiving a rotor assembly therein for actuating...
4716794 Opening device for an extension rod drilling equipment  
An opening device for an extension rod drilling equipment, comprising a supporting sleeve (3) rotatably mounted in a frame (1), and gripping jaws (6) displaceably mounted in the sleeve for gripping...
4709599 Compensating jaw assembly for power tongs  
A pipe die linkage for power tongs has a preloaded spring between a force producing cam follower and pipe die of such strength and preload that the die serrations will be forced to adequately bite...
4688453 Apparatus for making and braking connections between screw threaded tubular members  
An apparatus for making and breaking connections between screw threaded tubular members comprises a jaw carrier. A movable jaw support is pivotally mounted to one end of the jaw carrier while a...
4681193 Rotary power slips  
Rotary power slips mounted in the rotary table of an earth drilling rig and having slips for gripping and releasing pipe in the rotary table. The air transfer ring has concentric grooves in the...
4676125 Adjustable socket  
An improved adjustable socket for use with a ratchet wrench drive handle to loosen or tighten bolts, nuts and other threaded workpieces, is comprised of a hollow cylindrical casing having a passive...
Matches 1 - 50 out of 120 1 2 3 >