U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Icon_funbox Bizarre Patents

Patent No. 5970981

Mouthguard made at least partially from an edible candy

A mouthguard includes a U-shaped upper bite plate which removably fits over upper teeth of a person, with the entire upper bite plate being made from a soft, deformable and edible gummi candy.

Newsletter  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.

 

Class 166/361 - Pipe cutting means


Subclass of Class 166 - Wells
Definition: Process or apparatus including means to subdivide one portion
No. of patents: 44
Last issue date: 06/24/2008


1    
NumberTitleIssue Date
7389817Riser control device
A riser control device, particularly designed to be used in connection with spool or horizontal production trees (12) for wells in sub-sea oil and gas installations. Within a housing (1,2) of the device is provided, in opposed direction, radially movab...
06/24/2008
7367396Blowout preventers and methods of use
Methods and apparatuses for severing a wellbore tubular, the apparatus, in certain aspects, including: a first member movable toward a tubular to be severed; a second member with a second blade disposed opposite to the first member and movable toward the tubular; a ...
05/06/2008
7331562Blowout preventer with breech assembly
A blowout preventer which, in certain aspects, has a main body with a main top, a main bottom, and a main bore therethrough from the main top to the main bottom, at least one breech assembly secured to the main body, ram apparatus movable within the breech assembly ...
02/19/2008
7325612One-trip cut-to-release apparatus and method
Apparatuses and methods allow a downhole anchor device to be cut, released, and retrieved using a single one-trip cutter and removal assembly. The assembly preferably includes a cutter head recessed behind an anchor latch. The latch is landed to the anchor device to...
02/05/2008
7225873Coiled tubing cutter
A cutting module to sever a tubing in a well includes a piston and shear blade. The piston includes at least two moveable telescoping elements, which are adapted to expand the first piston from a retracted length to an expanded length. The shear blade is connected t...
06/05/2007
7182012Pyrotechnically driven device for cutting solid, compact materials
A pyrotechnic cutting device has a guiding housing in which there is arranged a part to be severed, which is fashioned so as to be severable at a cut point by a cutting tool having a cutting chisel. A pressure pulse generator containing a pyrotechnic driving charge ...
02/27/2007
7178598Device for a hydraulic cutting tool
A device for a hydraulic cutting tool (30) for cutting of at least one pipe (16, 18, 20) or tubular object beneath a water floor (10), wherein the cutting is carried out from a surface facility (2). The cutting tool (30) is anchore...
02/20/2007
7121348Mounts for blowout preventer bonnets
A mount for a bonnet of a blowout preventer includes at least one support member coupled to a body of the blowout preventer, and a bonnet mounting member moveably coupled to the at least one support member and adapted to move substantially normal to a face of the bo...
10/17/2006
7096960Mounts for blowout preventer bonnets
A mount for a bonnet of a blowout preventer includes at least one support member coupled to a body of the blowout preventer, and a bonnet mounting member moveably coupled to the at least one support member and adapted to move substantially normal to a face of the bo...
08/29/2006
7090019Casing cutter
A subsea well casing cutting tool for use as part of a well abandonment procedure, the casing cutting tool deployable from a vessel located at a water surface, where in certain embodiments the casing cutting tool comprises a casing gripper; a rotary cutter drive ass...
08/15/2006
7086467Coiled tubing cutter
A subsea production system includes a blowout preventer stack that is adapted to seal and contain pressure in a well. The blowout preventer stack has a passageway through which a tubular string may extend into the well. The subsea production system includes a subsea...
08/08/2006
7051804Subsea protective cap
A cap for covering an open upper end of a subsea structure includes a base and a body. The base has a size, after shrinkage, at least slightly larger than the exterior of the open upper end of the subsea structure. The body is connected to the base and projects down...
05/30/2006
7036599Method and apparatus for cutting underwater structures
A method for the cutting of underwater structures below the level of the sea bottom on which they are installed, comprises determining an ideal plane of cutting, having considered the characteristic features of the structure i.e. its morphology and its positioning o...
05/02/2006
6997260Method of repairing tubular members on oil and gas wells
The disclosure concerns a method and apparatus for repairing or structurally reinforcing an oil and gas well tubular member, or an assembly of tubular members. The assembly to be repaired can include a smaller diameter inner flow conveying conduit (or production tub...
02/14/2006
6964304Technique for maintaining pressure integrity in a submersible system
A technique for maintaining pressure integrity within a submersible system. The system utilizes a pressure housing with an internal component, such as a valve. The internal component is actuated by an external actuator via an actuator stem. A seal region is position...
11/15/2005
6926087Electro-mechanical wireline anchoring system and method
An electro-mechanical wireline assembly as shown for anchoring a wireline tool string in place during a wellbore under balanced well conditions. The assembly includes an upper connection for connection to the wireline leading to the well surface and a lower connecto...
08/09/2005
6926085Safety system for underwater cutting
Apparatus for a method of cutting pipes underwater comprising jetting a jacket down over the pipe, blowing mud out from between the pipe and the jacket so the annulus between the pipe and the jacket is substantially filled with water and/or air, and performing the c...
08/09/2005
6918441Cup tool for high pressure mandrel
A cup tool for use with a mandrel of a wellhead isolation tool has a substantially right-angled stepped shoulder over which an elastomeric sealing element is forced by elevated fluid pressures. A top end of the elastomeric sealing element is inhibited from extrusion...
07/19/2005
6834721System for disconnecting coiled tubing
A disconnect system for coiled tubing. A first end of the coiled tubing is disconnected from a second end of the coiled tubing by holding the coiled tubing in a stationary position at a first and a second location. The coiled tubing is then sheared at one or more lo...
12/28/2004
6679328Reverse section milling method and apparatus
A method and apparatus for milling a section of casing in an upward direction, utilizing a downhole hydraulic thrusting mechanism for pulling a section mill upwardly. A downhole motor and torque anchor can be used to rotate the section mill, or the mill c...
01/20/2004
6629565Abandonment and retrieval apparatus and method
A well abandonment process for cutting and retrieving an offshore well casing, the process comprising: making a trip to the well wherein all of the following steps are performed, the steps comprising: pulling a seal assembly from the wellhead, cutting the...
10/07/2003
6601650Method and apparatus for replacing BOP with gate valve
The present invention discloses apparatus and methods for replacing a BOP with a gate valve to thereby save space, initial costs, and maintenance costs that is especially beneficial for use in offshore subsea riser packages. The method provides a gate val...
08/05/2003
6554073Method and apparatus for removing wellhead assemblies
A method of cutting a well casing located beneath a subsea wellhead wherein a cutting assembly is made and lowered into an operative position. A mounting device is secured to the wellhead and the cutter is radially expanded into engagement with the casing...
04/29/2003
6439313Downhole machining of well completion equipment
A method of machining a workpiece in a subterranean wellbore comprises the steps of: (a) providing a workpiece that comprises (1) a first section that comprises a first material, and (2) a second section that comprises a second material, the second sectio...
08/27/2002
6386290System for accessing oil wells with compliant guide and coiled tubing
The disclosure describes a spoolable compliant guide, a system including a spoolable compliant guide and injector and methods for using the compliant guide, where the guide is designed to connect at one end to the injector and at its other end to a remote...
05/14/2002
6357528One-trip casing cutting & removal apparatus
A one-trip system for removing casing from a wellhead is described. The string includes a cutting device spaced at the required depth and a grappling device above it at the appropriate location. A swivel tool, such as a marine swivel, is used in conjuncti...
03/19/2002
6330919Method of removing wellhead assemblies and cutting assembly for use therein
A method of cutting a well casing located beneath a subsea wellhead wherein a cutting assembly is made and lowered into an operative position. A mounting device is secured to the wellhead and the cutter is radially expanded into engagement with the casing...
12/18/2001
6145594Gate valve for subsea completion system
A caisson gate valve (10) fitting within an outer casing (12) extending downwardly from a subsea wellhead below the sea floor is disclosed. The gate valve (10) includes a valve body or block (14) having an axial bore or flow passage (16) therethrough and ...
11/14/2000
6056049Wellhead retrieving tool
A wellhead retrieval tool is disclosed which is adaptable to a variety of configurations of wellheads. The tool comprises a spear through which a rotary cutter can operate. The tool can be adjustably supported off the top of the wellhead so that the grapp...
05/02/2000
5979943Shearable completion riser joint
The present invention refers to a completion riser joint (1) shearing by the shear ram of the blow-out preventer (BOP) (2), to be coupled, at its lower part, to the column hoist running tool and, at its upper part, to the completion riser column, the refe...
11/09/1999
5525010Method and apparatus for severing tubular members
A method and apparatus for severing tubular members below a mud line. The mud is evacuated from the target area of the tubular member and the apparatus is lowered through the inner opening of the tubular member to the target area. A housing of the apparat...
06/11/1996
5318115Casing cutting and retrieving tool
A casing cutting and retrieving tool is described which includes a grapple device (2) for mechanically gripping casing to be retrieved. A mud motor having upper and lower stators (70, 73) and a rotor is also provided. The upper stator (70) acts as a suspe...
06/07/1994
5303776Device for a down-hole assembly
A wireline conveyable device for a fluid operable borehole tubing assembly comprising a tubular body having a first end intended to form the upper end when in the borehole and a second open end intended to form the lower end. The tubular body includes at ...
04/19/1994
5078546Pipe bursting and replacement method
Tool for slitting and laterally expanding underground steel gas mains and inserting replacement plastic piping into the spread apart pipeline has a forward end cylindrical portion mounting a single, rearwardly angled blade to make only one line of cut, an...
01/07/1992
4987956Apparatus for use in drilling a well at an offshore location
Apparatus is disclosed for use in drilling an offshore well wherein a drill string suspended from a drill ship for extension within a riser pipe, lower marine riser package and subsea wellhead including a blowout preventer stack may be sheared at a locati...
01/29/1991
4909320Detonation assembly for explosive wellhead severing system
A detonation assembly for an explosive wellhead severing system which employs a battery pack lowerable through a drill string to engage and power the detonation assembly positioned within the well bore. The lowerable unit includes a biased shutter which s...
03/20/1990
4789268Device and method for removing irregularities in or enlarging an underground duct
A device for removing irregularities in or enlarging a buried duct comprises a cylindrical housing corresponding approximately in diameter to the required diameter of the duct, an expandable shell comprising a plurality of tapered leaf members pivotally a...
12/06/1988
4703802Cutting and recovery tool
A cutting and recovery tool for a well-head, having a housing which is adapted to engage with a side wall of the well-head to lock them together, and a mandrel extending through the housing and rotatable relative to the housing and adapted to carry a radi...
11/03/1987
4528910Apparatus for cutting a submerged tube by means of a pyrotechnic charge
Apparatus for the pyrotechnic cutting of a submerged tube. The apparatus, which is introduced into the tube, comprises in a conventional manner a chassis on which is mounted a support for a pyrotechnic charge, a shield in the upper part of the chassis and a ...
07/16/1985
4323117Method and means for emergency shearing and sealing of well casing
Natural gas deposits vented by oil or gas wells may pressurize a well beyond the capacity of installed apparatus to contain damage in the event of equipment failure, blow-out, or fire with the result that a well may flow out of control. The means and meth...
04/06/1982
1    
 
Sign InRegister
Username  
Password   
forgot password?