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| Number | Title | Issue Date |
| 7441485 | Apparatus for dismantling a radioactively contaminated installation part and method for dismantling the installation part An apparatus for dismantling a radioactively contaminated tubular installation part which is located under water contains a base part which can be fixed to the installation part and in which a rolling cutting apparatus is mounted. The rolling cutting apparatus can b... | 10/28/2008 |
| 7370703 | Downhole hydraulic pipe cutter The casing cutter disclosed herein is useful for severing downhole tubulars and comprises a body, slips, a cutting head, cutting blades, and actuators for operating the cutting head and cutting blades. The casing cutter can be anchored within casing wellbore with th... | 05/13/2008 |
| 7213591 | Groove cutting tool A cutting tool in which a disc-like cutter blade is fixed to a spindle of a rotary electric tool, comprising a first guide plate, which is attached on electric tool side to a cutter blade such that it is capable of rotating freely and makes contact with the referenc... | 05/08/2007 |
| 7188674 | Downhole milling machine and method of use The present invention is directed to a method and apparatus for providing a pathway for fluid communication through a tubing-retrievable subsurface safety valve (TRSSV). The method and apparatus are designed to be deployed within a hydrocarbon wellbore after the TRS... | 03/13/2007 |
| 6876504 | Apparatus for detecting inaccuracy of machining of finished workpiece A lens apparatus for detecting inaccuracy of machining of a finished workpiece is disclosed. After finishing the workpiece on a machine table in a machining process, remove a tool from a shaft, mount the lens apparatus under the shaft, couple a display to the machin... | 04/05/2005 |
| 6748835 | Container trimming apparatus An improved apparatus for trimming an irregular open end of a container body is disclosed. The improved trimmer cartridge includes a sealed gear housing, for retention of interior lubricant and to reduce contamination. An adjustment mechanism, accessible from the ex... | 06/15/2004 |
| 6705185 | Lathe for interior cutting of hollow work pieces A turning lathe for interior cutting of hollow work pieces using a boring rod onto which a tool holder device is fitted and on which there is a mechanism for holding a work piece in such a way that it encloses at least part of the boring rod characterized by the fac... | 03/16/2004 |
| 6626074 | Down hole pipe and casing cutter A down hole pipe cutter is provided to cut a section of pipe from the pipe's interior. The device includes a lower guide plate, an upper guide plate, a connector rod interconnecting the lower guide plate to the upper guide plate, and an eccentrically moun... | 09/30/2003 |
| 6578453 | Inside diameter machining method An inside diameter machining method for machining inside a workpiece uses a turning tool utilized within a main body in the shape of a bar with a hook-shaped top end portion which has a cutting portion. When the machining diameter of the portion to be mac... | 06/17/2003 |
| 6460435 | Method of rotational thread milling and a thread milling cutter for use therewith A method of rotational milling of a thread on a workpiece and including providing a device having a rotatable workpiece spindle for supporting the workpiece and a rotatable milling cutter spindle for supporting a thread milling cutter, and displacing axia... | 10/08/2002 |
| 6446532 | Turning machining tool The turning machining tool has a main body 2 forming tool holding portion 3. An insert holding portion 12 is provided to the main body so as to being rotatably in a predetermined plane. A insert 13 is detachably attached to the insert holding portion 12. ... | 09/10/2002 |
| 6418822 | Cut-off apparatus for non-circular tubes A cut-off apparatus for non-circular tubes includes an axially movable carriage supporting one or more cutter assemblies and a drive system for driving the carriage synchronously with an advancing tubes. The advancing tube is received over a cutting mandr... | 07/16/2002 |
| 6415695 | Method for forming spherical concave surfaces A method for forming a spherical concave surface includes the steps of bringing a tool into contact with a material to be formed, rotating the material around a predetermined axis, and moving the tool in a first direction parallel to a central axis of the... | 07/09/2002 |
| 6415694 | Method and chuck for precision machining of thin walled sleeves and for manufacturing engine cylinder liner sleeves A method of manufacturing precision machined thin sleeves, as for engine cylinder liners in which the outside diameter of a thick walled tubular preform is first machined to a finish size, and the preform chucked in an encircling jaw chuck on the preform ... | 07/09/2002 |
| 6227082 | Process and device for manufacturing workpieces with non-circular inner or outer contours as well as eccentrically positioned round boreholes and/or journals The invention pertains to a special process and devices for the production preferably by machining of workpieces with non-circular outer and inner contours such as squares, hexagons, ellipses, polygons and the like, or eccentric circular bores and/or tapp... | 05/08/2001 |
| 5992275 | Pipe cutter having non-rotating, overlapping knives A pipe cutter having non-rotating, overlapping knives is provided. Also provided is a pipe cutter having non-rotatable overlapping knives wherein one of the knives is continuously reciprocated.... | 11/30/1999 |
| 5644828 | Device for in situ repairing of a cylinder in a printing machine A device for repairing a cylinder in a printing machine while the cylinder is installed in the printing machine. The device includes a cross slide rail having a base body with longitudinal guides, a longitudinal support slidably mounted on the longitudina... | 07/08/1997 |
| 5633902 | Method and apparatus for dismantling fuel storage racks A metal cutting motor driven saw blade carried by a housing structure for anchoring inside the fuel storage cell forms part of apparatus that is used in method to reduce the volume of radiologically contaminated metal racks after use for storing nuclear f... | 05/27/1997 |
| 5293412 | Apparatus for dismantling an irradiated component of a nuclear reactor by the cutting of its wall The irradiated component (1) comprises at least one tubular wall with its axis vertical and fastened inside a well (2) in a concrete structure (3). The connecting elements between the concrete structure (3) and the component (1) are destroyed, the compone... | 03/08/1994 |
| 5203244 | Device for cutting up a component of a nuclear reactor The device comprises a support (9) provided with means (12) for its demountable fastening to the reactor structure (1) above and vertically in line with the component (3), a turret (10) mounted rotatably on the support (9) about its vertical axis, a devic... | 04/20/1993 |
| 5146818 | Can trimming apparatus The apparatus includes a rotatable headstock trimmer unit including reciprocating spindles that are rotatable about a horizontal axis, one spindle having a first rotatable cutting element secured to one end thereof, the second spindle having a second rota... | 09/15/1992 |
| 5042334 | Interior pipe cutter with safety extension A interior pipe cutter with depth of cutting guide and safety extension is described for cutting pipe from the inside out, while preventing the cutting blade from extending too far outside the pipe workpiece, so that it does not jump outside the pipe or d... | 08/27/1991 |
| 4932125 | Internal pipe cutter A cutting tool is designed to cut through plastic pipe from within. This operation is required when a pipe is mounted in a floor or wall and must be cut off below the level of the floor for installation of plumbing fixtures. A rotary shaft with a rotary s... | 06/12/1990 |
| 4930379 | Cutting apparatus A tube cutting apparatus includes a stopping element positioned inside the tubular blank to be cut. The stopping element is movable inside the tube to cutting position. The stopping member is transferred and held at the cutting position by a flexible memb... | 06/05/1990 |
| 4924684 | Apparatus for forming and cutting spiral pipe An apparatus for forming and slitting spirally formed pipe, particularly spiral pipes having a diameter of approximately one inch or less, is disclosed. The pipe forming apparatus includes an enclosed forming head and a mandrel. A continuous strip of meta... | 05/15/1990 |
| 4914990 | Apparatus for trimming flanged cans The apparatus includes a rotatable headstock trimmer unit including a reciprocating spindle that is rotatable about a horizontal axis and has an annular cutting element secured to one end thereof for engaging the open upper end of an outwardly flanged can... | 04/10/1990 |
| 4841636 | Positive drive mechanism for uniform feed of internal tube cutter A positive drive mechanism is provided to operate an internal tube cutter. The tube cutter has a body insertable into a tube to be severed, and a wedge-shaped slide supporting a cutting wheel on a forward portion of the cutter body. The slide and cutting ... | 06/27/1989 |
| 4823579 | Apparatus for cutting hollow pipes An apparatus for cutting spirally formed pipe is disclosed. This apparatus has two knives mounted on a boom to be positioned inside of the pipe. The inner knives have cutting edges that are adjacent the inner pipe surface and point in opposite directions.... | 04/25/1989 |
| 4813313 | Apparatus for demolishing a reactor shield wall The invention relates to an apparatus for demolishing a reactor shield wall. The apparatus has a pillar (2) extending from the top side of the reactor toward the bottom of the reactor, an upper support device (3) for supporting the upper portion of the pi... | 03/21/1989 |
| 4799412 | Method for severing the ends of tubing Method for severing the ends of tubing by feeding the end of a tube through a die such that its end to be sheared extends beyond the die while presenting a shear blade with a pointed end in the interior of the tube end. After the shear blade is inserted i... | 01/24/1989 |
| 4779496 | Tube cutting apparatus and method An improved tube cutting apparatus and method for cutting through the inside of a metallic tube is disclosed herein. The apparatus generally comprises a support assembly which is slidably insertable within a tube, a flail tube cutting head connected to a ... | 10/25/1988 |
| 4773799 | Apparatus for sampling a section of tube in a nuclear fuel assembly For sampling a section of a tube in a nuclear fuel assembly comprising a skeleton formed by two end-pieces joined by tubes fixed to the end-pieces an opening for the extraction of the section through the upper end-piece is cut out with a milling cutter. T... | 09/27/1988 |
| 4601223 | Flail tube cutter A flail tube cutter having an elongated cutting head circumscribed by a generally circular cutting blade, a means of rotating this cutting head, and a flexible shaft for coupling the cutting head to the rotating means is disclosed herein. The circular cut... | 07/22/1986 |
| 4589309 | Precision internal tube cutter A precision internal tube cutter can sever an upper end portion of a guide thimble inserted and attached within a passageway of a top nozzle adapter plate of an irradiated fuel assembly so as to facilitate reconstitution of the fuel assembly. Further, the... | 05/20/1986 |
| 4577406 | Retracting internal tube cutter A retracting internal tube cutter for severing a tube from the interior is disclosed. The tube cutter includes a pair of swing arms mounted for pivotal outward displacement for effecting cutting of the tube. A retractor collar biased by a spring is mounte... | 03/25/1986 |
| 4576070 | Pipe cutter and method A pipe cutter having guidance means for cutting a pipe on a plane generally perpendicular to the longitudinal axis of the pipe. A power tool imparts a rotational torque to a shaft having a circular cutting blade carried thereon at substantially right angl... | 03/18/1986 |
| 4524511 | Adjustable interior pipe cutter A pipe cutter is provided whereby a pipe or workpiece is cut from the inside out said cut accomplished by rotating cutters that are mounted on the ends of pivoted sliding guides wherein the guides are pivoted at the end opposite to that of the cutters and... | 06/25/1985 |
| 4450738 | Tire splitting apparatus A tire splitting apparatus including a frame, a powered drive roll mounted on the frame for rotating a tire, a pressure roll for engaging the tire with the drive roll, and a knife for insertion into the casing while it is rotating for cutting it into halv... | 05/29/1984 |
| 4389765 | Piling removal A unit (10) is employed such that sections of piling are separated and removed from the surrounding leg jackets to facilitate relocation of an offshore drilling platform. Unit (10) comprises a clamping section (20) by which the unit is secured in place an... | 06/28/1983 |
| 4318319 | Sealing ring and method and apparatus for making same A sealing ring is disclosed which is formed of an elastomeric material wherein the cross section thereof has a plurality of substantially flat surfaces, and wherein the inner and outer diameter surfaces, which are the sealing surfaces thereof, are molded ... | 03/09/1982 |
