Ultra High Pressure Generating Device Patents (Class 425/77)
  • Patent number: 10647067
    Abstract: The invention relates to a device for producing a component made from a fiber composite material from a semi-finished fibrous product by means of a multi-part molding and infiltration tool with tool parts, the molding functional surfaces thereof forming, when the tool is closed, a cavity that defines the component. The device is characterized in that the tool (1) has a sealing frame (2, 16, 18, 20, 21, 22) which is designed as a hollow body and in which the semi-finished fibrous product (3) can be arranged, and the tool parts (4) are configured and can be associated with the sealing frame (2, 16, 18, 20, 21, 22) such that, when the tool (1) is closed, the tool parts (4) are connected tightly to the sealing frame (2, 16, 18, 20, 21, 22).
    Type: Grant
    Filed: June 13, 2014
    Date of Patent: May 12, 2020
    Assignee: THYSSENKRUPP CARBON COMPONENTS GMBH
    Inventors: Jens Werner, Christian Koehler, Sandro Maeke, Michael Dressler, Andre Bartsch
  • Patent number: 10562000
    Abstract: Assemblies as disclosed herein for making superhard products by HPHT process comprise a first can portion for accommodating a mixture of materials therein and a second can mated with the first can portion. A leak-tight seal is provided between the first can portion and second can portion in a manner that accommodates the manufacture of relatively longer superhard products without having to change other elements or members used for HPHT processing to thereby provide improved manufacturing flexibility and cost efficiency.
    Type: Grant
    Filed: March 9, 2016
    Date of Patent: February 18, 2020
    Assignee: SMITH INTERNATIONAL, INC.
    Inventors: David P. DenBoer, Clint Hamilton, Michael David France, Ryan J. Davis, Lynn L. Belnap, Yi Fang
  • Patent number: 10543653
    Abstract: A container assembly for use in a high-pressure press having a central pressure cell and a method of sealing a central pressure cell. The container assembly includes a container that receives a sample to be pressed, and a gasket distinct from the container, the gasket meeting the container at an interface. The container and the gasket are dimensioned to locate the interface within the central pressure cell.
    Type: Grant
    Filed: October 3, 2016
    Date of Patent: January 28, 2020
    Assignee: SMITH INTERNATIONAL INC.
    Inventor: Stewart N. Middlemiss
  • Patent number: 9718245
    Abstract: Provided is a combined cold isostatic press and general press capable of simultaneously performing cold isostatic pressing using pressure of fluid and general pressing using mechanically applied pressure. The combined cold isostatic press and general press includes a main frame having a center penetration region, a pressure vessel supported by the penetration region of the main frame, the pressure vessel performing cold isostatic pressing using fluid injected therein, a top lid installed to be vertically slidable from or to an upper end of the pressure vessel by the fluid filled in the pressure vessel so as to function as piston, the top lid being configured to open or close the upper end of the pressure vessel, a lower lid configured to open or close a lower end of the pressure vessel and a press unit located between the top lid and the main frame to perform pressing using pressure applied by the top lid as the top lid slides from the pressure vessel.
    Type: Grant
    Filed: March 18, 2013
    Date of Patent: August 1, 2017
    Assignee: ENERGYN INC.
    Inventor: Jin Suk Jang
  • Patent number: 9539782
    Abstract: High-pressure high-temperature presses are commonly employed to create superhard materials used in such fields as road milling, mining and trenching, to breakup tough materials such as asphalt, concrete and rock. Many such presses comprise a plurality of piston assemblies that may act in concert to pressurize a cell. Such a cell may comprise a body with a plurality of canisters disposed therein and at least one unique heater element adjacent each of the canisters. Heat may be generated within such a press by forming an electrical circuit with the unique heater element and anvils surrounding the cell.
    Type: Grant
    Filed: August 27, 2015
    Date of Patent: January 10, 2017
    Inventors: David R. Hall, Scott S. Dahlgren, Michael Hall, Ronald B. Crockett, Timothy C. Duke
  • Patent number: 9539781
    Abstract: High-pressure high-temperature presses are commonly employed to create superhard materials used in such fields as road milling, mining and trenching, to breakup tough materials such as asphalt, concrete and rock. Many such presses comprise a plurality of piston assemblies that may act in concert to pressurize a cell. Such a cell may comprise a body with at least three canisters disposed therein, each comprising an axis passing through a center of the body. Such a configuration may allow for maximum planes of symmetry within the cell.
    Type: Grant
    Filed: August 27, 2015
    Date of Patent: January 10, 2017
    Inventors: David R. Hall, Scott S. Dahlgren, Michael Hall, Ronald B. Crockett, Timothy C. Duke
  • Patent number: 9457533
    Abstract: A container assembly for use in a high-pressure press having a central pressure cell and a method of sealing a central pressure cell. The container assembly includes a container that receives a sample to be pressed, and a gasket distinct from the container, the gasket meeting the container at an interface. The container and the gasket are dimensioned to locate the interface within the central pressure cell.
    Type: Grant
    Filed: October 22, 2012
    Date of Patent: October 4, 2016
    Assignee: Smith International, Inc.
    Inventor: Stewart N. Middlemiss
  • Patent number: 9327349
    Abstract: An endplate for a hot isostatic pressing canister comprises a central region, and a main region extending radially from the central region and terminating in a corner about a periphery of the endplate. The thickness of the endplate increases along the main region, from the central region to the corner, defining a taper angle. The corner includes an inner surface comprising a radiused portion by which the main region smoothly transitions into the lip. A hot isostatic pressing canister including at least one of the endplates also is disclosed, along with a method of hot isostatic pressing a metallurgical powder using the hot isostatic canister.
    Type: Grant
    Filed: August 26, 2015
    Date of Patent: May 3, 2016
    Assignee: ATI PROPERTIES, INC.
    Inventors: Peter Lipetzky, Joseph F. Perez, Edward Kosol, Jean-Philippe A. Thomas
  • Patent number: 9272443
    Abstract: The invention relates, in particular, to a ceramic-powder and/or metal-powder press tool, comprising at least one base body (21), a plurality of at least two punches (22-25) which, in a press position, are arranged to be insertable from one side into a die cavity (3) of a die (2) filled with ceramic and/or metal powder (P), a plurality of at least two punch carriers (26-29) each for the attachment of one of the punches, wherein at least part of the die carriers (28; 29) is couplable to at least two adjustment drives (39-42) and wherein the punch carriers are arranged to be adjustable relative to each other and relative to the base body, and positive-stop devices (48°, 49, 50) arranged to divert at least part of a pressing force (Fp) from the punches via the base body in a press end position, wherein at least one of the punch carriers is coupled to or mounted on at least two coupling rods (30-33) and each of the coupling rods is couplable to or mountable on its own such adjustment drive.
    Type: Grant
    Filed: November 12, 2011
    Date of Patent: March 1, 2016
    Assignee: Dorst Technologies Gmbh & Co. Kg
    Inventors: Roland Menzel, Michael Thomas Silbermann, Mathias Metz
  • Patent number: 8998598
    Abstract: A press assembly for pressurizing a body, comprising a frame and a cartridge for applying load to the body, in which the frame comprises a bore for accommodating the cartridge. The press assembly further comprises an axial securement mechanism for securing the cartridge axially within the bore and a radial securement mechanism for securing the cartridge radially within the bore. The press assembly is configured such that the cartridge can be rotated in the bore between a locked condition and an unlocked condition. The radial and axial securement mechanisms are cooperatively configured with respect to each other so when the cartridge is in the locked condition, both the radial and axial securement mechanisms are engaged and when the cartridge is in the unlocked condition the radial and axial securement mechanisms are both disengaged and there is a clearance gap between the cartridge and the bore permitting the cartridge to be axially displaceable within the bore.
    Type: Grant
    Filed: March 22, 2013
    Date of Patent: April 7, 2015
    Assignee: Element Six Abrasives S.A.
    Inventor: Dragan Vukovic
  • Publication number: 20150037444
    Abstract: A press assembly for pressurising a body, comprising a frame and a cartridge for applying load to the body, in which the frame comprises a bore for accommodating the cartridge. The press assembly further comprises an axial securement mechanism for securing the cartridge axially within the bore and a radial securement mechanism for securing the cartridge radially within the bore. The press assembly is configured such that the cartridge can be rotated in the bore between a locked condition and an unlocked condition. The radial and axial securement mechanisms are cooperatively configured with respect to each other so when the cartridge is in the locked condition, both the radial and axial securement mechanisms are engaged and when the cartridge is in the unlocked condition the radial and axial securement mechanisms are both disengaged and there is a clearance gap between the cartridge and the bore permitting the cartridge to be axially displaceable within the bore.
    Type: Application
    Filed: March 22, 2013
    Publication date: February 5, 2015
    Applicant: Element Six Abrasives S.A.
    Inventor: Dragan Vukovic
  • Publication number: 20140356470
    Abstract: An adjustment assembly comprising a platform (110) moveably coupled to a base (120), and an adjustment mechanism comprising a deflection member (132, 134) for adjusting the position of the platform (110) laterally relative to the base (120); the adjustment assembly being configured so that the platform (110) can be urged to move laterally in a direction along a first axis responsive to the deflection member (132, 134) being urged to move in a direction along a second axis, the second axis being substantially not parallel to the first direction.
    Type: Application
    Filed: December 5, 2012
    Publication date: December 4, 2014
    Applicant: ELEMENT SIX ABRASIVES S.A.
    Inventor: Dragan Vukovic
  • Patent number: 8857327
    Abstract: A structure for presses, a resistant structure of which includes at least a resistant element which, in turn, includes an annular element or arch, internally of which are predisposed two facing surfaces, between which at least a power organ is insertable, which power organ is suitable for compressing an object or material to be pressed between two bodies. Full-thickness cuts are symmetrically arranged at ends of the facing surfaces, each cut, starting from the end of the relative facing surface, develops over an arc of a polycentric curve which exhibits at least a first tract, the most external surface of which connects with the lateral surface of the vertical portion of the annular element or arch, and at least a second tract which is connected to the first tract and extends over a portion of not less than a quarter of an arc of circumference.
    Type: Grant
    Filed: October 11, 2011
    Date of Patent: October 14, 2014
    Assignee: System S.p.A.
    Inventors: Franco Stefani, Franco Gozzi
  • Patent number: 8857328
    Abstract: Various embodiments of high pressure presses and related methods of manufacturing and operating such presses are described. In one embodiment, a cubic press is described having press bases with spacers disposed between adjacent press bases. Sets of two or more tie bars are also disposed between adjacent press bases. The tie bars are placed in a state of compression while the spacers are placed in a state of compression. During operation, the press bases may become displaced relative to one another such that additional tension is experience by the tie bars while the amount of compression experienced by the spacer is reduced. The tie bars exhibit a relatively small cross-sectional area as compared to the cross-sectional area of the spacer.
    Type: Grant
    Filed: October 29, 2010
    Date of Patent: October 14, 2014
    Assignee: US Synthetic Corporation
    Inventor: Shelby M. Shreve
  • Patent number: 8851871
    Abstract: A press, an automated loading system for a press and related methods are provided including a loading system having a first assembly configured to carry a reaction cell to an anvil of a press base and a second assembly configured to assist in positioning and orientating the reaction cell on the anvil. In one embodiment, the first assembly may include a trolley displaceable along a guide member to carry the reaction cell to the anvil. The first and second assemblies may each include guide members that are displaceable relative to the anvil that are configured to position the reaction cell at a desired location and orientation on the anvil. In one embodiment, each of the guide members include arms that engage distinct sides of a cubic reaction cell. A clearing mechanism may also be incorporated to clear the surface of the anvil during operation of the system.
    Type: Grant
    Filed: January 10, 2013
    Date of Patent: October 7, 2014
    Assignee: US Synthetic Corporation
    Inventors: Josh J. Nell, Derek M. Lontine, Eric T. Johnson, Scott Williams, Tyson D. Bunker, Kevin C. Bach
  • Patent number: 8739697
    Abstract: A high pressure press assembly along with related methods and components for the press assembly are provided. In one embodiment, a press assembly includes a first press base having one or more tie bar receiving holes extending therethrough. A second press base may also include one or more tie bar receiving holes extending therethrough. A tie bar extends between the first press base and the second press base. A tensioning assembly is operatively coupled to the tie bar to place the tie bar in tension.
    Type: Grant
    Filed: October 29, 2010
    Date of Patent: June 3, 2014
    Assignee: US Synthetic Corporation
    Inventor: Shelby M. Shreve
  • Patent number: 8574535
    Abstract: The present invention relates to an HPHT method for synthesizing single crystal diamond, wherein a single crystal diamond seed having an aspect ratio of at least 1.5 is utilized. Single crystal diamond seeds having an aspect ratio of at least 1.5 and synthetic single crystal diamond which may be obtained by the method recited are also described. The growth surface is substantially aligned along a <100> or <110> direction in the plane of the growth surface.
    Type: Grant
    Filed: March 7, 2008
    Date of Patent: November 5, 2013
    Assignee: Element Six Limited
    Inventors: Carlton Nigel Dodge, Raymond Anthony Spits
  • Publication number: 20130266678
    Abstract: A thermal insulation layer for an HPHT cell, the thermal insulation layer including CsCl, CsBr, CsI, or a combination thereof, and the thermal insulation layer being electrically insulating; the thermal insulation layer including a thermal insulation sleeve and/or a thermal insulation button for an HPHT cell; a pressure transfer medium for an HPHT cell, the pressure transfer medium including CsBr, CsI or a combination thereof; and a pressure transfer medium for an HPHT cell, the pressure transfer medium including CsCl and additive, with the proviso that the additive does not include ZrO2 are disclosed. HPHT press systems that include a thermal insulation layer or a pressure transfer medium according to embodiments of the present disclosure are also disclosed.
    Type: Application
    Filed: March 14, 2013
    Publication date: October 10, 2013
    Inventors: YAHUA BAO, J. DANIEL BELNAP, STEWART N. MIDDLEMISS
  • Patent number: 8376726
    Abstract: An improved container and method for forming billets using hot isostatic pressing is provided. The method and container allows for adjusting the volume of the container so as to obtain a billet of the desired shape based on selected powder charge for the container. In addition, the corner of the container can be adjusted to allow for elimination of edge effects and further shape control in the resulting billet.
    Type: Grant
    Filed: August 20, 2009
    Date of Patent: February 19, 2013
    Assignee: General Electric Company
    Inventors: George Albert Goller, Raymond Joseph Stonitsch, Jason Robert Parolini
  • Patent number: 8303289
    Abstract: An improved method and container for forming billets using hot isostatic pressing is provided. The improved method and container have features that control the deformations of the container during the high temperatures and pressures experienced in such processing so as to provide a billet having a predetermined shape such as, for example, substantially parallel, convex, and/or concave sides. Conservations of the powder used for the billet and more efficient use of the container upon the resulting billet can be achieved.
    Type: Grant
    Filed: August 24, 2009
    Date of Patent: November 6, 2012
    Assignee: General Electric Company
    Inventors: George Albert Goller, Raymond Joseph Stonitsch, Jason Robert Parolini, Daniel Y. Wei
  • Patent number: 8096798
    Abstract: A molding machine for production of gas hydrate pellets under a high pressure in gas hydrate forming conditions, which is inexpensive through minimizing of the use of expensive mechanical seal. The molding machine comprises two forming rolls each fitted to a rotary shaft whose both ends are supported by bearings; a drive unit for rotating the forming rolls; a screw transfer unit for supplying powder to the forming rolls; and a high-pressure vessel, wherein the bearings, the rotary shaft and the forming rolls are all disposed in the high-pressure vessel.
    Type: Grant
    Filed: March 28, 2008
    Date of Patent: January 17, 2012
    Assignees: Mitsui Engineering & Shipbuilding Co., Ltd., The Chugoku Electric Power Co., Inc.
    Inventors: Kenji Watanabe, Kiyoaki Suganoya, Takahiro Yoshida, Kenji Ogawa, Shigeru Nanbara, Shinji Imai
  • Patent number: 8066500
    Abstract: In one aspect of the present invention, a cartridge assembly for connection to the frame of a high-pressure, high-temperature press comprises a front end comprising a back-up intermediate and coaxial with an anvil and a piston, the anvil comprising a proximal end in contact with the back-up and a distal end that forms part of a pressurized chamber within the frame, the back-up comprising a proximal end comprising a first diameter proximate an interface with a distal end of the piston, and a distal end comprising a second diameter proximate an interface with the proximal end of the anvil, the back-up comprising one or more circumferential reliefs disposed on the first diameter.
    Type: Grant
    Filed: October 29, 2009
    Date of Patent: November 29, 2011
    Inventors: David R. Hall, Scott Dahlgren
  • Patent number: 7985059
    Abstract: In one embodiment of the present invention, an assembly for HPHT processing comprises a can with an opening. A powder mixture is disposed within the opening. A substrate is disposed within the opening adjacent the powder mixture. Paint is coated on a surface within the opening and opposite the powder mixture with respect to the substrate. A meltable sealant is disposed within the opening and opposite the substrate with respect to the surface and a cap is covering the opening.
    Type: Grant
    Filed: July 30, 2009
    Date of Patent: July 26, 2011
    Inventors: David R. Hall, Ronald B. Crockett
  • Publication number: 20110104318
    Abstract: In one aspect of the present invention, a cartridge assembly for connection to the frame of a high-pressure, high-temperature press comprises a front end comprising a back-up intermediate and coaxial with an anvil and a piston, the anvil comprising a proximal end in contact with the back-up and a distal end that forms part of a pressurized chamber within the frame, the back-up comprising a proximal end comprising a first diameter proximate an interface with a distal end of the piston, and a distal end comprising a second diameter proximate an interface with the proximal end of the anvil, the back-up comprising one or more circumferential reliefs disposed on the first diameter.
    Type: Application
    Filed: October 29, 2009
    Publication date: May 5, 2011
    Inventors: David R. Hall, Scott Dahlgren
  • Patent number: 7927085
    Abstract: In one embodiment of the present invention, an assembly for HPHT processing comprises a can with an opening. A powder mixture is disposed within the opening. A substrate is disposed within the opening adjacent the powder mixture. Paint is coated on a surface within the opening and opposite the powder mixture with respect to the substrate. A meltable sealant is disposed within the opening and opposite the substrate with respect to the surface and a cap is covering the opening. In another embodiment of the present invention, an assembly for HPHT processing comprises a can with an opening, a powder mixture is disposed within the opening, a substrate disposed within the opening adjacent and above the powder mixture, a formable sealant barrier is disposed within the opening above the substrate, a meltable sealant is disposed within the opening above the formable sealant barrier, and a cap covers the opening.
    Type: Grant
    Filed: July 30, 2009
    Date of Patent: April 19, 2011
    Inventors: David R. Hall, Ronald B. Crockett
  • Patent number: 7854823
    Abstract: A process for converting carbonaceous material into diamond utilizing the compressive force derived from an abruptly collapsing magnetic field.
    Type: Grant
    Filed: June 20, 2006
    Date of Patent: December 21, 2010
    Inventor: Alvin A. Snaper
  • Patent number: 7819648
    Abstract: The present invention provides an outer frame for cubic hinge press and the cubic hinge press with this outer frame, said outer frame encloses an accommodation space; The supporting planes used for supporting and fixing the back cover plates of hinge sleeve cylinder are set around the inner walls of the outer frame and on the inner walls of upper and lower surfaces of outer frame; A window for the assembly, disassembly and maintenance of press is correspondingly set between two adjacent supporting planes on the outer frame. According to different needs, the outer frame may be designed as square frame, butterfly frame, basket type frame or spherical frame. The hinge press formed by connecting six hinge sleeve piston components through reinforcing plate or through hinge ears and pins is installed in the accommodation space enclosed by the outer frame, thus forming a cubic hinge press.
    Type: Grant
    Filed: April 13, 2007
    Date of Patent: October 26, 2010
    Assignee: Zhengzhou Synthetic Diamond and Related Products Engineering Technology Research Center
    Inventors: Jinzhong Yang, Liuxi Guo, Qingguo Zhao
  • Patent number: 7736472
    Abstract: A pressure source material is loaded into a space having constraint device 1, which is formed partly by optically transparent material 1a, 1b, and is disrupted under volume constraint. Light energy is externally supplied to the pressure source material constrained in the space through the optically transparent material by employing the device to apply light energy. The disruption of atomic bonds in the pressure source material is induced by heating the pressure source material above the boiling point thereof through the supplied energy. Exceptionally high pressures are generated in the space by the use of expansive forces arising from the disruption of atomic bonds. Such a configuration can implement ultrahigh pressure abilities that has not been achieved, so far.
    Type: Grant
    Filed: January 2, 2008
    Date of Patent: June 15, 2010
    Assignee: Tokai University Educational System
    Inventor: Yasushi Kawashima
  • Publication number: 20100129480
    Abstract: The present invention provides a multi-anvil machine, more specifically, a multi-anvil cubic machine that generates substantially hydrostatic pressures and high temperatures inside an industrial reaction chamber. In said chamber materials such as diamonds, cubic boron nitride and similar materials. These conditions are attained in a stable and efficient manner. The generation of force is produced by hemispherical pistons having a short travel path and housed in semi-spherical chambers. The number of mobile components has been reduced in order to simplify and facilitate the assembly during each working cycle.
    Type: Application
    Filed: August 16, 2005
    Publication date: May 27, 2010
    Inventors: Ramon Martin Parrondo, Dmitri Bagriantsev
  • Publication number: 20090302501
    Abstract: In one embodiment of the present invention, an assembly for HPHT processing comprises a can with an opening. A powder mixture is disposed within the opening. A substrate is disposed within the opening adjacent the powder mixture. Paint is coated on a surface within the opening and opposite the powder mixture with respect to the substrate. A meltable sealant is disposed within the opening and opposite the substrate with respect to the surface and a cap is covering the opening. In another embodiment of the present invention, an assembly for HPHT processing comprises a can with an opening, a powder mixture is disposed within the opening, a substrate disposed within the opening adjacent and above the powder mixture, a formable sealant barrier is disposed within the opening above the substrate, a meltable sealant is disposed within the opening above the formable sealant barrier, and a cap covers the opening.
    Type: Application
    Filed: July 30, 2009
    Publication date: December 10, 2009
    Inventors: David R. Hall, Ronald B. Crockett
  • Patent number: 7540732
    Abstract: In one aspect of the invention, a cartridge assembly is adapted for connection to a frame of a high pressure, high temperature press having a front end with a back up intermediate and coaxial with an anvil and a piston. The back up has an anterior end proximate the anvil and posterior end proximate the piston. The cartridge assembly has a hydraulic system adapted to apply axial pressure to the back-up through the piston to axially move the front end with respect to a cartridge body. The assembly also has a centralizing assembly with a rod rigidly attached to the cartridge body at a first end and a second end adapted to slide within a peripheral bore formed in the front end.
    Type: Grant
    Filed: September 30, 2008
    Date of Patent: June 2, 2009
    Inventors: David R. Hall, Timothy C. Duke, Scott Dahlgren, Ronald B. Crockett
  • Publication number: 20090136607
    Abstract: The present invention provides an outer frame for cubic hinge press and the cubic hinge press with this outer frame, said outer frame encloses an accommodation space; The supporting planes used for supporting and fixing the back cover plates of hinge sleeve cylinder are set around the inner walls of the outer frame and on the inner walls of upper and lower surfaces of outer frame; A window for the assembly, disassembly and maintenance of press is correspondingly set between two adjacent supporting planes on the outer frame. According to different needs, the outer frame may be designed as square frame, butterfly frame, basket type frame or spherical frame. The hinge press formed by connecting six hinge sleeve piston components through reinforcing plate or through hinge ears and pins is installed in the accommodation space enclosed by the outer frame, thus forming a cubic hinge press.
    Type: Application
    Filed: April 13, 2007
    Publication date: May 28, 2009
    Applicant: ZHENGZHOU SYNTHETIC DIAMOND AND RELATED PRODUCTS E
    Inventors: Jinzhong Yang, Liuxi Guo, Qingguo Zhao
  • Patent number: 7517203
    Abstract: In one aspect of the invention, a cartridge assembly is adapted for connection to a frame of a high pressure, high temperature press having a front end with a back up intermediate and coaxial with an anvil and a piston. The back up has an anterior end proximate the anvil and posterior end proximate the piston. The cartridge assembly has a hydraulic system adapted to apply axial pressure to the back-up through the piston to axially move the front end with respect to a cartridge body. The assembly also has a centralizing assembly with a rod rigidly attached to the cartridge body at a first end and a second end adapted to slide within a peripheral bore formed in the front end.
    Type: Grant
    Filed: September 30, 2008
    Date of Patent: April 14, 2009
    Inventors: David R. Hall, Timothy C. Duke, Scott Dahlgren, Ronald B. Crockett
  • Patent number: 7513764
    Abstract: In one aspect of the invention, a cartridge assembly is adapted for connection to a frame of a high pressure, high temperature press having a front end with a back up intermediate and coaxial with an anvil and a piston. The back up has an anterior end proximate the anvil and posterior end proximate the piston. The cartridge assembly has a hydraulic system adapted to apply axial pressure to the back-up through the piston to axially move the front end with respect to a cartridge body. The assembly also has a centralizing assembly with a rod rigidly attached to the cartridge body at a first end and a second end adapted to slide within a peripheral bore formed in the front end.
    Type: Grant
    Filed: September 30, 2008
    Date of Patent: April 7, 2009
    Inventors: David R. Hall, Timothy C. Duke, Scott Dahlgren, Ronald B. Crockett
  • Patent number: 7497675
    Abstract: A cartridge assembly for connection to the frame of a high pressure, high temperature press, comprising a front end. The front end may comprise a back up with a conical portion intermediate and coaxial with an anvil and a piston. The anvil may comprise a proximal end in contact with the back-up and a distal end being adapted to form part of a pressurized chamber within the frame. The back-up may comprise a truncated cylinder comprising a first and second interface that are joined by a peripheral cylindrical wall. The cylindrical wall may also comprise a portion extending normally from the periphery of the first interface to a net concave portion of the cylindrical wall. The net concave portion may extend from the normal portion of the cylindrical wall to the periphery of the second interface which abuts the anvil.
    Type: Grant
    Filed: February 13, 2007
    Date of Patent: March 3, 2009
    Inventors: David R. Hall, Scott Dahlgren, Timothy C. Duke
  • Patent number: 7487710
    Abstract: Disclosed is a high-pressure generation apparatus, which comprises a pair of columnar-shaped anvils disposed in opposed relation to one another to define a pressure-generating space therebetween. The anvils are adapted to be applied with a load therebetween to generate a high pressure in the pressure-generating space. Each of the anvils has a top portion formed in an approximately circular truncated cone shape, and the top portion has a central region formed with a depression having a side surface which extends obliquely outward. The high-pressure generation apparatus also includes a cylindrical capsule disposed in a central area of the pressure-generating space, and a laminated member formed by alternately laminating a doughnut-shaped metallic thin plate and a doughnut-shaped insulating member along the outer periphery of the capsule. The improved shape of the depression makes it possible to significantly reduce damages of the components.
    Type: Grant
    Filed: August 29, 2005
    Date of Patent: February 10, 2009
    Assignee: National Institute of Advanced Industrial Science and Technology
    Inventors: Nao Takeshita, Chieko Terakura, Hidenori Takagi, Yoshinori Tokura
  • Patent number: 7481639
    Abstract: A cartridge assembly for connection to the frame of a high pressure, high temperature press, comprising a front end. The front end may comprise a back up with a conical portion intermediate and coaxial with an anvil and a piston. The anvil may comprise a proximal end in contact with the back-up and a distal end being adapted to form part of a pressurized chamber within the frame. The back-up may comprise a truncated cylinder comprising a first and second interface that are joined by a peripheral cylindrical wall. The cylindrical wall may also comprise a portion extending normally from the periphery of the first interface to a net concave portion of the cylindrical wall. The net concave portion may extend from the normal portion of the cylindrical wall to the periphery of the second interface which abuts the anvil.
    Type: Grant
    Filed: February 12, 2007
    Date of Patent: January 27, 2009
    Inventors: David R. Hall, Scott Dahlgren, Timothy C. Duke
  • Patent number: 7467936
    Abstract: A cartridge assembly for connection to a frame of a high temperature, high pressure press, having an anvil at a front end of a cylindrical body of the cartridge and a hydraulic chamber within the body adapted to apply axial pressure to the anvil. A radial compression element is disposed around an outer diameter of the body and is adapted to limit radial expansion of the body proximate the hydraulic chamber.
    Type: Grant
    Filed: March 27, 2007
    Date of Patent: December 23, 2008
    Inventors: David R. Hall, Ronald Crockett, Scott Dahigren, Timothy C. Duke
  • Patent number: 7467937
    Abstract: In one aspect of the present invention, a high-temperature, high-pressure press apparatus has a cartridge assembly adapted for connection to a unitary frame. An anvil is attached at a front end of a cylindrical body of the cartridge and a hydraulic chamber within the body is adapted to apply axial pressure to the anvil. A threaded end of the anvil is adapted for mating with a threaded inside diameter of a borehole disposed within a wall of the frame. A radial compression element disposed around an outer diameter of the body is adapted to limit radial expansion of the body proximate the hydraulic chamber. At least one mechanism is attached to the radial compression element; the at least one mechanism being adapted to preload the threaded connection between the cartridge assembly and the frame.
    Type: Grant
    Filed: November 29, 2007
    Date of Patent: December 23, 2008
    Inventors: David R. Hall, Ronald Crockett, Timothy C. Duke, Scott Dahlgren
  • Publication number: 20080241293
    Abstract: A cartridge assembly for connection to a frame of a high temperature, high pressure press, having an anvil at a front end of a cylindrical body of the cartridge and a hydraulic chamber within the body adapted to apply axial pressure to the anvil. A radial compression element is disposed around an outer diameter of the body and is adapted to limit radial expansion of the body proximate the hydraulic chamber.
    Type: Application
    Filed: March 27, 2007
    Publication date: October 2, 2008
    Inventors: David R. Hall, Ronald Crockett, Scott Dahigren, Timothy C. Duke
  • Publication number: 20080193580
    Abstract: A cartridge assembly for connection to the frame of a high pressure, high temperature press, comprising a front end. The front end may comprise a back up with a conical portion intermediate and coaxial with an anvil and a piston. The anvil may comprise a proximal end in contact with the back-up and a distal end being adapted to form part of a pressurized chamber within the frame. The back-up may comprise a truncated cylinder comprising a first and second interface that are joined by a peripheral cylindrical wall. The cylindrical wall may also comprise a portion extending normally from the periphery of the first interface to a net concave portion of the cylindrical wall. The net concave portion may extend from the normal portion of the cylindrical wall to the periphery of the second interface which abuts the anvil.
    Type: Application
    Filed: February 13, 2007
    Publication date: August 14, 2008
    Inventors: David R. Hall, Scott Dahlgren, Timothy C. Duke
  • Publication number: 20080193579
    Abstract: A cartridge assembly for connection to the frame of a high pressure, high temperature press, comprising a front end. The front end may comprise a back up with a conical portion intermediate and coaxial with an anvil and a piston. The anvil may comprise a proximal end in contact with the back-up and a distal end being adapted to form part of a pressurized chamber within the frame. The back-up may comprise a truncated cylinder comprising a first and second interface that are joined by a peripheral cylindrical wall. The cylindrical wall may also comprise a portion extending normally from the periphery of the first interface to a net concave portion of the cylindrical wall. The net concave portion may extend from the normal portion of the cylindrical wall to the periphery of the second interface which abuts the anvil.
    Type: Application
    Filed: February 12, 2007
    Publication date: August 14, 2008
    Inventors: David R. Hall, Scott Dahlgren, Timothy C. Duke
  • Publication number: 20080193581
    Abstract: A cartridge assembly for connection to the frame of a high pressure, high temperature press, comprising a front end. The front end may comprise a back up with a conical portion intermediate and coaxial with an anvil and a piston. The anvil may comprise a proximal end in contact with the back-up and a distal end being adapted to form part of a pressurized chamber within the frame. The back-up may comprise a truncated cylinder comprising a first and second interface that are joined by a peripheral cylindrical wall. The cylindrical wall may also comprise a portion extending normally from the periphery of the first interface to a net concave portion of the cylindrical wall. The net concave portion may extend from the normal portion of the cylindrical wall to the periphery of the second interface which abuts the anvil.
    Type: Application
    Filed: February 13, 2007
    Publication date: August 14, 2008
    Inventors: David R. Hall, Scott Dahigren, Timothy C. Duke
  • Patent number: 7371280
    Abstract: High pressure synthesis of various crystals such as diamond, cBN and the like can be carried out using reaction assemblies suitable for use in methods such as temperature gradient methods. The reaction assembly can be oriented substantially perpendicular to gravity during application of high pressure. Orienting the reaction assembly in this manner can avoid detrimental effects of gravity on the molten catalyst, e.g., convection, hence increasing available volumes for growing high quality crystals. Multiple reaction assemblies can be oriented in series or parallel, each reaction assembly having one or more growth cells suitable for growth of high quality crystals. Additionally, various high pressure apparatuses can be used. A split die design allows for particularly effective results and control of temperature and growth conditions for individual crystals.
    Type: Grant
    Filed: August 24, 2005
    Date of Patent: May 13, 2008
    Inventor: Chien-Min Sung
  • Patent number: 7354262
    Abstract: The present invention includes a hydraulic cartridge and unitary frame connection for a high pressure high temperature press apparatus with the hydraulic cartridge having a cylindrical base and truncated hollow conical section The truncated section has an external threadform with a taper between about 2.650 and 5.650 inches per foot. The unitary frame having an opening with an internal threadform extending axially substantially between an outer surface and an inner reaction chamber defined by the unitary frame and the internal threadform being threadedly mated with the external threadform of the hydraulic cartridge such that a load is substantially equally distributed across the external threadform.
    Type: Grant
    Filed: January 29, 2007
    Date of Patent: April 8, 2008
    Inventors: David R. Hall, Scott Dahlgren, Timothy C. Duke, Joe Fox
  • Publication number: 20080057145
    Abstract: An improved assembly for HPHT processing having a can with an opening and a mixture disposed within the opening. A sealant barrier is positioned atop the mixture. First and second lids are positioned atop the mixture.
    Type: Application
    Filed: August 31, 2006
    Publication date: March 6, 2008
    Inventors: David R. Hall, Ronald Crockett, Jacob S. Waldron, Joe Fox
  • Patent number: 7332727
    Abstract: A pressure source material is loaded into a space having constraint device 1, which is formed partly by optically transparent material 1a, 1b, and is disrupted under volume constraint. Light energy is externally supplied to the pressure source material constrained in the space through the optically transparent material by employing the device to apply light energy. The disruption of atomic bonds in the pressure source material is induced by heating through the supplied energy. Exceptionally high pressures are generated in the space by the use of expansive forces arising from the disruption of atomic bonds. Such a configuration can implement ultrahigh pressure abilities that has not been achieved, so far.
    Type: Grant
    Filed: October 31, 2002
    Date of Patent: February 19, 2008
    Assignee: Tokai University Educational System
    Inventor: Yasushi Kawashima
  • Publication number: 20080022806
    Abstract: A diamond sintered body conventionally used in a cutting tool or the like includes an iron group metal element as a sintering aid, and therefore has a problem in heat resistance. A diamond sintered body not including the iron group metal, on the other hand, does not have sufficient mechanical strength to be used as a tool material, and also does not have conductivity, which makes electrical discharge machining impossible, and thus processing thereof is difficult. A diamond polycrystalline body having high heat resistance and mechanical strength and having conductivity enabling electrical discharge machining is obtained by using only an amorphous or fine graphite-type carbon material as a starting material, adding boron thereto and concurrently performing conversion into diamond and sintering in an ultra-high pressure and temperature condition.
    Type: Application
    Filed: December 3, 2004
    Publication date: January 31, 2008
    Inventor: Hitoshi Sumiya
  • Patent number: 7306441
    Abstract: High pressure synthesis of various crystals such as diamond, cBN and the like can be carried out using reaction assemblies suitable for use in methods such as temperature gradient methods. The reaction assembly can be oriented substantially perpendicular to gravity during application of high pressure. Orienting the reaction assembly in this manner can avoid detrimental effects of gravity on the molten catalyst, e.g., convection, hence increasing available volumes for growing high quality crystals. Multiple reaction assemblies can be oriented in series or parallel, each reaction assembly having one or more growth cells suitable for growth of high quality crystals. Additionally, various high pressure apparatuses can be used. A split die design allows for particularly effective results and control of temperature and growth conditions for individual crystals.
    Type: Grant
    Filed: February 6, 2004
    Date of Patent: December 11, 2007
    Inventor: Chien-Min Sung
  • Patent number: 7186104
    Abstract: The present invention includes a hydraulic cartridge and unitary frame connection for a high pressure high temperature press apparatus. The invention includes a hydraulic cartridge and a unitary frame threaded together. The hydraulic cartridge includes a cylindrical base and a truncated hollow conical section with external threads having a taper between about 2.650 and 5.650 inches per foot. The unitary frame defines an inner reaction chamber and has an outer surface. An opening in the unitary frame has internal threads extending axially substantially between the outer surface and the inner reaction chamber. The internal threads are adapted to mate with the hydraulic cartridge and the hydraulic cartridge is attached to the unitary frame along the length of the threads.
    Type: Grant
    Filed: July 6, 2005
    Date of Patent: March 6, 2007
    Inventors: David R. Hall, Scott Dahlgren, Timothy C. Duke, Joe Fox