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| Number | Title | Issue Date |
| 8074869 | System, method, and apparatus for reactive foil brazing of cutter components for fixed cutter bit A reactive foil is used to assemble the components of rock bit cutters and to affix cutting elements to rock bit bodies. A small pulse of localized energy ignites the foil in a fraction of a second to deliver the necessary amount of heat energy to flow solder or bra... | 12/13/2011 |
| 7975902 | Joining method for joining components A method is provided for connecting components particularly in the field of aerospace wherein a first component is connected to a second component, comprising the following steps: arranging at least one nano- or microstructured material between the first and the sec... | 07/12/2011 |
| 7950568 | Exothermic welding assembly An assembly is disclosed for exothermic welding comprising a mold which is formed of a material which withstands exothermic welding temperatures and includes a weld cavity therein for positioning at least two members which are to be exothermically welded together, a... | 05/31/2011 |
| 7922068 | Welding railway lines This invention relates to a thermite welding process for joining sections of a railway line in situ, the process including the preliminary step of mounting a suitable welding mould about the aligned sections of railway line to be welded together and sealing the moul... | 04/12/2011 |
| 7810704 | Method for fabricating large dimension bonds using reactive multilayer joining A method for joining component bodies of material over bonding regions of large dimensions by disposing a plurality of substantially contiguous sheets of reactive composite materials between the bodies and adjacent sheets of fusible material. The contiguous sheets o... | 10/12/2010 |
| 7644854 | Bead pack brazing with energetics A method of making porous shapes from unit structures such as beads involves coating the beads with two or more layers of material deposited such that it forms an energetic material. These bi-layer energetic materials are formed from a variety of materials including... | 01/12/2010 |
| 7588179 | Bonding of carbon fibers to metal inserts for use in composites Resin-impregnated carbon fiber composites containing metal inserts. Carbon fibers or a carbon fiber preform are bonded to a metal structural member. Once the carbon fiber-metal bond is established, the fiber-metal assembly or hybrid preform is impregnated with resin... | 09/15/2009 |
| 7354659 | Method for fabricating large dimension bonds using reactive multilayer joining A method for joining component bodies of material over bonding regions of large dimensions by disposing a plurality of substantially contiguous sheets of reactive composite materials between the bodies and adjacent sheets of fusible material. The contiguous sheets o... | 04/08/2008 |
| 7240717 | Multiple ignition source exothermic reaction mold device A multiple ignition source exothermic reaction mold device. The mold device includes a crucible in a block with an open top for receiving exothermic reaction powder. A lid covering the open top has an opening therethrough. A receptacle in the lid is in communication... | 07/10/2007 |
| 7202553 | Wafer bonding using reactive foils for massively parallel micro-electromechanical systems packaging A method for forming device packages includes forming a perimeter with a reactive foil and a bonding material interposed between a first wafer and a second wafer, pressing the first and the second wafers against the reactive foil and the bonding material, initiating... | 04/10/2007 |
| 7090112 | Method and sealant for joints A joint between one or more structural members and an associated method are provided. The joint includes a friction weld joint or other connection between faying surfaces of the members, and an exothermically reacted sealant disposed in an interface defined by the f... | 08/15/2006 |
| 6994244 | Exothermic welding An assembly and method are disclosed for exothermic welding including a mold which is formed of a material which withstands exothermic welding temperatures, and includes a weld cavity therein for positioning at least two members which are to be exothermically welded... | 02/07/2006 |
| 6991856 | Methods of making and using freestanding reactive multilayer foils Reactive foils and their uses are provided as localized heat sources useful, for example, in ignition, joining and propulsion. An improved reactive foil is preferably a freestanding multilayered foil structure made up of alternating layers selected from materials th... | 01/31/2006 |
| 6860419 | Apparatus and method for controlling movement of a device after packaging An apparatus and method for controlling movement of packaged devices. Specifically, embodiments of the present invention discloses an apparatus a method of providing a controlling mechanism for effecting physical control over a device that is disposed on a structure... | 03/01/2005 |
| 6805276 | Deposit metal welding method To prevent decreases in fatigue strength of a base material by relieving the residual stress of a weld. A method for welding a deposit metal to a base material with reduced residual stress, comprising a step of welding a deposit metal to a base material; and a step ... | 10/19/2004 |
| 6793003 | Exothermic welding mold conversion plug A weld mold assembly which includes a crucible section for exothermically reacting weld material to form a molten metal, a weld mold having a weld chamber with an opening for receiving the molten metal and a plurality of guide holes for receiving ground rods and wir... | 09/21/2004 |
| 6789724 | Welding apparatus and method An exothermic welding system uses compressible layers of disposable refractory batting or gaskets to form a weld chamber for parts to be welded. The parts to be welded are layered with the batting between a base and a crucible platen supported by a clamping fixture.... | 09/14/2004 |
| 6776386 | Lid for exothermic reaction welding mold A lid for an exothermic reaction mold device. The device includes an internal crucible in a block with an open top. The lid includes a lower face with an elongated opening therethrough. The lid also includes an upper face with a circular opening therethrough whereby... | 08/17/2004 |
| 6640873 | Exothermic weld mold assembly An exothermic weld mold assembly for forming conductor to conductor welded connections. The exothermic weld mold assembly includes a crucible section having a U-shaped reaction chamber with exothermic material therein, and a mold section having a pluralit... | 11/04/2003 |
| 6534194 | Method of making reactive multilayer foil and resulting product In accordance with the invention a reactive multilayer foil is fabricated by providing an assembly (stack or multilayer) of reactive layers, inserting the assembly into a jacket, deforming the jacketed assembly to reduce its cross sectional area, flatteni... | 03/18/2003 |
| 6382496 | Welding handle clamp Handle clamps and a clamping kit for clamping or clamping and fastening a mold during exothermic welding are disclosed in which a single handle clamp may be utilized in at least three different exothermic welding operations. The handle clamp may be utiliz... | 05/07/2002 |
| 6316125 | Aluminum welding process and composition for use in same The invention provides a new and improved process and exothermic reaction mixture for producing molten weld metal. The molten weld metal is used in joining one metallic piece with at least one other metallic piece. The process and exothermic reaction mixt... | 11/13/2001 |
| 6152349 | Welding mold and preheating device intended to cooperate with the welding mold The present invention concerns a welding mold for butt welding two metal parts by casting a molten filler metal in an imprint defined by a mold. At least one of the components of the mould includes a spacer member shaped and sized so that it can be engage... | 11/28/2000 |
| 6131801 | Method and device for thermite welding at large water depths Method and device to join the ends of two cylindrical objects by welding at deep water without the use of divers, where the ends of the two objects are connected with an inner casing inside an outer casing thereby creating a closed chamber around the join... | 10/17/2000 |
| 5967402 | Method for joining members at ordinary temperature When a metal member and a ceramic member are joined to one another, an aluminum nitride sintered compact is prepared. A liquid and a component which is mutually reactive with the liquid are applied onto the aluminum nitride sintered compact, and then a co... | 10/19/1999 |
| 5902498 | Methods of joining metal components and resulting articles particularly automotive torque converter assemblies Thermal stresses normally associated with joining are alleviated by a low temperature joining technique of the present invention. A low-temperature joining material is applied (as a paste, or as a powder spray, or as a tape, or as a paint, or as a putty) ... | 05/11/1999 |
| 5850962 | Casting mold for fusion welding of two workpieces In order to reduce the residual stresses which occur in the region of a fusion weld of two rail ends (1,2), in order to reduce, in particular to make uniform, the cooling-down rate and--associated with this--the crystallization process within the solidify... | 12/22/1998 |
| 5679464 | Joined product of heat-resisting alloys and method for joining heat-resisting alloys The present invention provides a joined product of heat-resisting alloys, comprising heat-resisting alloy sheets or foils optionally having an oxide film on their surfaces, said heat-resisting alloy sheets or foils being joined to each other at their surf... | 10/21/1997 |
| 5660317 | Exothermic welding jig, molds therefor and method An exothermic welding jig, molds for the jig, and a method of forming and manipulating the mold parts is disclosed. Upper and lower mold parts are included with a crucible fitted on and clamped to the upper mold part. The upper mold part and crucible may ... | 08/26/1997 |
| 5653279 | Apparatus and method for forming electrical connections A two part exothermic weld mold assembly is horizontally split through a weld cavity. The upper single mold port includes a crucible offset from the weld cavity. The tap hole from the crucible to the weld cavity includes a vertical section and a slanted o... | 08/05/1997 |
| 5647425 | Apparatus and method for forming electrical connections A mold assembly and method for lap welding a conductor to a vertical bar or rod features two vertically split mold parts having a major parting surface in which are formed a crucible, tap hole, sleeving for the conductor and a weld chamber. An offset part... | 07/15/1997 |
| 5582228 | Exothermic welding crucible and method An exothermic welding apparatus and method uses a crucible which can be used with a variety of exothermic weld metal material volumes to produce welds of different sizes while maintaining the desired diameter to height ratio for each volume of exothermic ... | 12/10/1996 |
| 5538174 | Exothermic rail bond fixture A fixture for forming electrical connections to rail and the like includes a narrow elongated template plate operative to be positioned on and secured to a rail, and to locate an electrical connection with respect to the rail. The fixture has a parallel c... | 07/23/1996 |
| 5533662 | Exothermic welding apparatus Exothermic welding apparatus includes a toggle frame jig for supporting vertically split molds. The toggle includes a post projecting parallel to the main pivot of the jig on which telescopes a crucible support. The crucible support includes a handle exte... | 07/09/1996 |
| 5425496 | Method for joining ceramic and metal-ceramic heating elements to electrical terminals by micropyretic synthesis, compositions for electrical terminals and heaters comprising the same A method for joining a ceramic or metal ceramic electrical heating element to a electrical terminal is disclosed, the heating element having been manufactured using micropyretic synthesis, the method for joining comprising the steps of preparing the elect... | 06/20/1995 |
| 5419484 | Apparatus and process for aluminothermic welding The disclosure relates to a multi-part mold for aluminothermic welding without preheating of metal parts, said mold having internally employed a welding cavity and two rising channels with variable cross-sections along their height, the central part of we... | 05/30/1995 |
| 5383594 | Radiation-shielding transport and storage container A radiation-shielding storage/transport container has a cast-iron vessel having an open end defining an end face, a steel ring engaging the end face and forming at least one annular seat, a weld unitarily bonding the ring to the end face, and a cover secu... | 01/24/1995 |
| 5381944 | Low temperature reactive bonding The joining technique requires no external heat source and generates very little heat during joining. It involves the reaction of thin multilayered films deposited on faying surfaces to create a stable compound that functions as an intermediate or braze m... | 01/17/1995 |
| 5346096 | Radiation-shielding transport and storage container A radiation-shielding storage/transport container has a cast-iron vessel having an open end defining an end face, a steel ring engaging the end face and forming at least one annular seat, a weld unitarily bonding the ring to the end face, and a cover secu... | 09/13/1994 |
| 5340014 | Combustible slurry for joining metallic or ceramic surfaces or for coating metallic, ceramic and refractory surfaces A slurry for joining metallic or ceramic surfaces or for coating metallic or ceramic and refractory surfaces, comprising a liquid suspending medium and at least two constituents in particulate form suspended in the medium, the constituents being so select... | 08/23/1994 |
