Class / Patent application number | Description | Number of patent applications / Date published |
072370010 | Comprising use of internal tool | 33 |
20080245127 | Method Of Forming A Rotary Device - The present invention is a method of constructing a rotary device which as an outer hub and an inner hub disposed within the outer hub. One of the inner and outer hubs is rotatable with respect to the other one of the inner and outer hubs about an axis. A ribbon of material extends between opposite ends and is roll formed to achieve a desired profile of an inner and outer peripheral wall of the inner and outer hub, respectively. The roll formed ribbons of material are each secured to maintain the desired profile and achieve the respective peripheral wall. The inner peripheral wall is inserted inside the outer peripheral wall such that the outer peripheral wall surrounds the inner peripheral wall. | 10-09-2008 |
20090158807 | CENTRIFUGALLY-CAST TUBE AND RELATED METHOD AND APPARATUS FOR MAKING - An improved centrifugally-cast tube is provided, along with a related method and apparatus of making the tube. The tube includes a plurality of grooves and bosses that are mechanically machined into an interior surface of the tube, such as by a broaching process. The profile of grooves and bosses may be defined by a plurality of intersecting concave and convex radii. The tube is resistant to creep, carburization and metal dusting. The tube also has an enhanced heat transfer rate, and a desirable surface roughness. A method of making the tube is also provided. The method essentially consists of mechanically deforming the interior surface of the tube by passing a series of cutting inserts on support rings having incrementally-differing dimensions over the interior surface. An apparatus is also provided which includes a telescoping shaft upon which is mounted at least one cutting tool that has a plurality of cutting inserts and is adapted to form a plurality of grooves and bosses in the interior surface of the tube. The grooves and bosses may be straight or spiraled. | 06-25-2009 |
20150013425 | Internal Mechanical Stress Improvement Method for Mitigating Stress Corrosion Cracking in Weld Areas of Nuclear Power Plant Piping - Method for mitigating stress corrosion cracking at an internal (i.e., wetted-side) weld area in piping of a nuclear power plant includes the steps of actuating a radially movable tool to produce a radial load against the internal (i.e., normally wetted) surfaces at or near the weld area to create a deep residual compressive stress state at the wetted surface of the weld. The method permits post-process verification by physical measurements of surface distortion. | 01-15-2015 |
20150290696 | APPARATUS AND A METHOD FOR SURFACE PROCESSING A METALLIC STRUCTURE - The present invention relates to an apparatus and a method for processing a surface. The apparatus comprising a platform arranged to support a structure having an inner surface; at least one ball disposed adjacent to the inner surface; and a reflecting member having at least one reflecting surface; wherein the at least one ball is adapted to vibrate by a vibrating means and to collide with the inner surface and the reflecting surface thereby creating an impact to the inner surface. | 10-15-2015 |
20160030990 | Internal Mechanical Stress Improvement Method for Mitigating Stress Corrosion Cracking in Weld Areas of Nuclear Power Plant Piping - Method for mitigating stress corrosion cracking at an internal (i.e., welled-side) weld area in piping of a nuclear power plant includes the steps of actuating a radially movable tool to produce a radial bad against the internal (i.e., normally wetted) surfaces at or near the weld area to create a deep residual compressive stress state at the wetted surface of the weld. The method permits post-process verification by physical measurements of surface distortion. | 02-04-2016 |
072370020 | End necked down | 2 |
20100107718 | Necking die with redraw surface and method of die necking - The invention provides a die set comprising an annular necking die and a knockout punch for necking-in a metal container, and a method of necking. In the method, in at least one necking-in step, the metal container is both reduced in diameter and the container wall is redrawn to minimize circumferential irregularities of wall thickness and/or circumferential rippling of the container wall caused by the reduction of diameter. The die of the die set is provided with a redraw surface to achieve this redrawing effect. | 05-06-2010 |
20100107719 | Necking die with shortened land and method of die necking - The exemplary embodiments provide a die set comprising a knockout punch and a necking die for necking-in a metal container preform. In an axial direction from front to back of the die, the die has an inwardly tapering in-feed surface, a forming radius, a generally cylindrical land having a die bore diameter, a discharge surface and a relief surface having a diameter larger than the die bore diameter. The land has an axial length of less than 0.1 inch. It is believed that such a length limits the number of metal contacts with the land (rebounds between the knockout punch and the land) to one or two as a metal container preform is necked in the die in conjunction with a knockout punch having a punch diameter that provides a gap between the knockout punch and the land. While the gap may be larger than the topwall thickness of the metal of the preform within the gap, it may alternatively be the same as, or smaller than, the thickness (by up to 10%), to effect re-resizing of the container wall. The exemplary embodiments also provide a method of necking a container preform using such a die. | 05-06-2010 |
072370040 | Laterally pressed die(s) | 4 |
20130086968 | GROOVE PROCESSING DEVICE AND GROOVE PROCESSING METHOD - A groove processing device, which processes a cylinder groove to an inner circumference of a cylinder to protrude from an inner circumferential surface toward an outer circumferential surface side and extend in a center line direction of the cylinder, includes: a first groove processing unit that process both end portions of the cylinder groove in a circumferential direction thereof, and a second groove processing unit that processes a center portion of the cylinder groove in the circumferential direction thereof, wherein an outermost circumferential portion of each of the first groove processing unit and the second groove processing unit being formed to be a chevron shape so that a center portion thereof in the circumferential direction of the cylinder protrudes, and an inclination angle from a vertex portion in the outermost circumferential portion of the first groove processing unit is larger than that of the second groove processing unit. | 04-11-2013 |
20150114072 | TUBE NOTCHING METHOD AND ASSOCIATED NOTCHING MACHINE - The method for producing at least one notch in an outer wall of a tube includes guiding a first punch being made of a preforming tooth, causing the preforming tooth to penetrate through the wall of the tube until a protuberance is formed, positioning a solid cylindrical mandrel inside the tube. Then, the method includes guiding a second punch with a punching tooth, a leading end of the punching tooth having a shape complementary to a shape of the notch to be made in the wall of the tube, positioning a punching mandrel inside the tube, and having a groove suitable for containing the upset material. The invention can be used for notching headrests for the seats of a motor vehicle. | 04-30-2015 |
072370050 | Collapsible mandrel | 2 |
20120036913 | MANDREL ASSEMBLY AND METHOD OF USING THE SAME - A mandrel assembly has a mandrel, a biasing member, and a outer member. The biasing member biasly maintains the outer member in a first position, which corresponds to a contoured portion of the mandrel, when the outer member is either on the access or the blind side of a workpiece. The biasing member is compressible to allow the outer member to move into a second position as the outer member is moved through an opening in the workpiece. In the first position, the outer member includes a maximum outer circumference that is larger than the opening of the structural workpiece. In the second position, the outer member includes a maximum outer circumference that fits within the opening of the structural workpiece. | 02-16-2012 |
20130125608 | Multi-sided tube swaging apparatus and method - An apparatus and method for swaging a square or rectangular tube, the apparatus including a support for external dies, both surface dies and corner dies, which when actuated, apply pressure to the outside of a tube to achieve its swaging to a lesser dimension, and having a collapsible mandrel located therein, supporting internal dies, that apply a lesser pressure against the interior of the tube, during a swaging operation, to assure that wall buckling does not occur. An internal die with its removing tool may locate within the end of the tube to be swaged to cooperate with the pressure from the external dies to swage the tube without any final buckling. | 05-23-2013 |
072370060 | Expanding tube | 22 |
20080314113 | Processing method of tube body, manufacturing method of cylinder device and cylinder device manufactured by the same - There is provided a processing method of a tube body comprising the steps of a tube-expanding step wherein a base tube is partially retained with a chuck unit having a rotational function, and a mandrel is pressed in to an end portion of the base tube so as to expand the end portion of the base tube; and a rotation ironing step wherein the chuck unit rotates the base tube together with the mandrel a roller die is pressed against an outer-periphery surface of the end portion of the base tube and the roller die is moved with respect to the base tube and in an axial direction thereof so as to deform an inner periphery surface of the end portion of the base tube into a shape corresponding to an external shape of the mandrel. | 12-25-2008 |
20090038366 | Mechanical pipe-end expander and a method of manufacturing seamless steel pipe - The present invention provides a mechanical pipe-end expander comprising a cone and a die having tapered wedge bodies whose outer radius is larger towards a flangeless end direction from a flange end, wherein a pipe-end zone is expanded by a wedge effect of the die, which results from a procedure that the cone and the die are inserted together into the pipe-end zone to be expanded, and that then only the cone is axially drawn outwards leaving the die within the pipe-end zone. A seamless steel pipe with an expanded pipe-end zone is manufactured by applying a mechanical pipe-end expander comprising a die having tapered wedge bodies whose outer radius is larger towards a flangeless end direction from a flange end. The resulting seamless steel pipe has satisfactory pipe-end dimensional accuracy, and exhibits characteristics with excellent field welding workability. | 02-12-2009 |
20090090159 | PIPE EXPANDING METHOD AND PIPE EXPANDING DEVICE FOR STEEL PIPE - A pipe expanding device inserts a pipe expanding punch into an opening end portion of a steel pipe with a special shape in the state where the opening end portion of the steel pipe with a special shape is pressed in an insertion direction of the punch. | 04-09-2009 |
20090139295 | Method for manufacturing eccentrically expanded pipe - A method for manufacturing an eccentrically expanded pipe in which the plate thickness of the peripheral surface on the large expanding side that tends to easily produce cracks and necking is suppressed from becoming thin is provided. The problem is solved with a method for manufacturing an eccentrically expanded pipe plastically deforming an end of a pipe to an eccentrically expanded pipe part through an eccentrically expanding step; said eccentrically expanding step includes a first eccentrically expanding step, expanding an peripheral surface of the end of the pipe opposing to a peripheral surface finally expanded to be a final product, and a second eccentrically expanding step, expanding the peripheral surface finally expanded to be the final product. | 06-04-2009 |
20090193871 | RADIAL EXPANSION SYSTEM - A radial expansion system. | 08-06-2009 |
20100011833 | PNEUMATICALY DRIVEN PIPE SWEDGING AND FLARING TOOLS - Tools for expanding (i.e., flaring and swedging) the ends of metal tubes are configured for attachment to a powered impact hammer, such as an air hammer. A swedging tool for swedging an end of a metal tube has a swedging body with a die section for expanding the tube when driven thereinto and a flanged shank attached to the swedging body and configured for engagement by a powered impact hammer. A flaring tool for flaring an end of a metal tube includes a flaring body having a die section for flaring the tube when driven thereinto. A flanged shank is attached to the flaring body and configured for engagement by a powered impact hammer. A method for expanding an end of a metal tube entails attaching a die body for expanding the end of the metal tube to a powered impact hammer, aligning the die body with the inner diameter of the metal tube, activating the powered impact hammer, and urging the die body a determined distance into the metal tube. | 01-21-2010 |
20100180660 | EXTENSION FOR A PIPE EXPANDER - An assembly for actuating a pipe expander, the assembly comprising a first actuator, arranged to engage a pipe expander head and actuate the same a second actuator, spaced apart from the first actuator and operatively engaged therewith such that operation of the second actuator effects operation of the first actuator to actuate the pipe expander head. | 07-22-2010 |
20100218582 | TUBING EXPANSION - A method of expanding tubing comprises locating an expansion device in tubing to be expanded, vibrating one or both of the tubing and the expansion device, and translating the expansion device relative to the tubing, the vibration acting to reduce friction between the tubing and the device. | 09-02-2010 |
20100257913 | Resilient Anchor - Methods and apparatus for radially expanding and plastically deforming an expandable tubular member using an expansion device for radially expanding and plastically deforming the expandable tubular member, an actuator coupled to the expansion device, and an anchor coupled to the actuator. The anchor includes a resilient member that is selectively deformable between a first position wherein the resilient member does not engage the expandable tubular member and a second position wherein the resilient member engages the expandable tubular member so as to releasably couple the anchor to the expandable tubular member. | 10-14-2010 |
20130180306 | COMPLIANT EXPANSION SWAGE - The present invention generally relates to a swage assembly that is movable from a compliant configuration having a first shape to a substantially non-compliant configuration having a second shape. In one aspect, an expansion swage for expanding a wellbore tubular is provided. The expansion swage includes a body and a solid cone disposed on the body. The expansion swage further includes a deformable cone disposed on the body, wherein the solid cone is made from a first material and the deformable cone is made from a second material and wherein the deformable cone is movable relative to the body when the expansion swage is in a compliant configuration. In another aspect, a method of expanding a wellbore tubular is provided. | 07-18-2013 |
20130298632 | EXPANSION BULLET FOR HEAT EXCHANGER TUBE - An expansion bullet for a heat exchanger tube includes a leading edge face, a trailing edge face, and a bullet body insertable into a tube of a heat exchanger to expand the tube. The bullet body extends from the leading edge face to the trailing edge face and has an outer profile defined by a single radius. An expansion mechanism for a tube of heat exchanger includes a bullet driving device and an expansion bullet drivable by the bullet driving device. The expansion bullet includes a leading edge face, a trailing edge face, and a bullet body insertable into a tube of a heat exchanger to expand the tube. The bullet body extends from the leading edge face to the trailing edge face and has an outer profile defined by a single radius. | 11-14-2013 |
20150007629 | TUBE END MOLDING METHOD - The present invention provides a tube end molding method comprising: a tube shrinking step for forming a tapered portion and a small diameter tube portion at one end of an original tube; a preparing step for preparing a holding die having an original tube bore and a tube expanding bore; and a tube expanding step including a first step for mounting the original tube at the original tube bore of the holding die, a second step for folding the small diameter tube portion inside the original tube beginning at the tapered portion, and a third step for pressing the folded portion against an inner wall of the tube expanding bore. | 01-08-2015 |
072370070 | Sleeve expanded in passage | 1 |
20100018282 | MANDREL ASSEMBLY AND METHOD OF USING THE SAME - A mandrel assembly has a mandrel, a biasing member, and a outer member. The biasing member biasly maintains the outer member in a first position, which corresponds to a contoured portion of the mandrel, when the outer member is either on the access or the blind side of a workpiece. The biasing member is compressible to allow the outer member to move into a second position as the outer member is moved through an opening in the workpiece. In the first position, the outer member includes a maximum outer circumference that is larger than the opening of the structural workpiece. In the second position, the outer member includes a maximum outer circumference that fits within the opening of the structural workpiece. | 01-28-2010 |
072370080 | Expanding internal tool | 9 |
20080216544 | Plug, Method of Expanding Inside Diameter of Metal Pipe or Tube Using Such Plug, Method of Manufacturing Metal Pipe or Tube, and Metal Pipe or Tube - The plug is for expanding the inside diameter of the end portion of a metal pipe. Its cross section is a circle, and includes a taper portion and a parallel portion connected to the tail end of the taper portion. The diameter of the taper portion gradually increases from the head end of the taper portion to the tail end of the taper portion where the diameter is D | 09-11-2008 |
20100095736 | STRAIGHTENING A TUBE ON AN EXPANDER - A tube extending along a tube axis is straightened by radially outwardly plastically deforming and expanding the tube by means of an expander mandrel and simultaneously bending the tube by applying radially inwardly directed forces to the tube at three points lying on a triangle. One of the points is level with the mandrel on one side of the tube and the other two points axially flank it in axially opposite directions and bear on the other side of the tube. | 04-22-2010 |
20110138872 | TUBE EXPANDING METHOD FOR HEAT EXCHANGER TUBES AND TUBE EXPANDING APPARATUS FOR HEAT EXCHANGER TUBES - The present invention solves a problem with conventional tube expanding method for heat exchanger tubes that is susceptible, when carrying out tube expansion on U-shaped heat exchanger tubes that have a narrower diameter than in the past and forming flare portions in opening portions that have been subjected to tube expansion, to a buckling phenomenon at boundaries between straight portions and hairpin portions of the heat exchanger tubes or a vicinity thereof. | 06-16-2011 |
20120111082 | PIPE REPAIR TOOL AND RELATED METHODS - A pipe repair tool includes at least two saddles having an actuatable cylinder disposed therebetween and configured to fit within the pipe, the at least two saddles having arcuate surfaces configured to correspond with a circumference of the pipe. | 05-10-2012 |
20120111083 | PIPE REPAIR TOOL AND RELATED METHODS - A pipe repair tool includes at least two saddles having an actuatable cylinder disposed therebetween and configured to fit within the pipe, the at least two saddles including arcuate surfaces configured to correspond with a circumference of the pipe. | 05-10-2012 |
20130186166 | TUBE FORMING MACHINE - A machine or device for forming tubes or the like includes one or more cables or other elongated flexible members. An expanding forming device is positioned at an end of the cables, and the cables are inserted into a tube that is to be formed. The expanding device expands outwardly, and tension is placed on the cables to pull the cables through the tubes. This causes the tubes to be permanently deformed outwardly to a larger outer diameter. | 07-25-2013 |
20150114073 | TUBE EXPANDING METHOD FOR MANUFACTURING METAL TUBE - Through a tube expanding processing simulation, a workpiece shape in a state where a tip of a workpiece | 04-30-2015 |
20150369020 | EXPANSION DEVICE AND METHOD OF USE - Herein disclosed is an expansion device comprising at least one expanding segment; an actuator; and a connector linking the at least one expanding segment to the actuator such that when the actuator is activated, the expanding segment expands or retracts. The actuator is propelled by hydraulic, pneumatic, or electric power. Also disclosed herein is a method expanding a portion of a tubular comprising providing an expansion device comprising at least one expanding segment, an actuator, and a connector linking the at least one expanding segment to the actuator such that when the actuator is activated, the expanding segment expands or retracts; and placing the at least one expanding segment inside the tubular. | 12-24-2015 |
20160008866 | HYDRAULIC TUBE EXPANDER AND METHOD OF USE | 01-14-2016 |