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...that Kleenex tissue was originally designed to be a gas mask filter? It was developed at the beginning of World War I to replace cotton, which was then in short supply as a surgical dressing.
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| Number | Title | Issue Date |
| 8056797 | Expandable mandrel for use in friction stir welding A mandrel that provides a counter-force to the pressure exerted on the outside of a pipe or other arcuate surface by a friction stir welding tool, wherein the mandrel is expandable through the use of a wedge, and wherein the mandrel enables multiple friction stir we... | 11/15/2011 |
| 7651018 | Expandable mandrel for use in friction stir welding A mandrel that provides a counter-force to the pressure exerted on the outside of a pipe or other arcuate surface by a friction stir welding tool, wherein the mandrel is expandable through the use of a wedge, and wherein the mandrel enables multiple friction stir we... | 01/26/2010 |
| 7631797 | Magnetic plug weld tool A magnetic based welding tool having an adjustment knob, a pivot arm, and a copper alloy pad, designed to assist with welding holes, for example, in sheet metal, that are to be welded closed with a MIG or TIG welder, by providing a backup to the hole, to keep the we... | 12/15/2009 |
| 7410087 | Welding backup systems for heat-sink or purge purposes A welding apparatus is disclosed for use during welding of a tubular metal nozzle to a tank's metal domed cap. The nozzle extends longitudinally between a base end for mating to the tank's cap at an aperture therein and a spaced-away terminal free end. Typically, th... | 08/12/2008 |
| 7301120 | Ion fusion formation process including precise heat input and temperature control An ion fusion formation method is used to manufacture a component from successive layers of feedstock material. A plasma stream is created by energizing a flowing gas using an arc electrode, the arc electrode having a variable magnitude current supplied thereto. The... | 11/27/2007 |
| 7134589 | Wire bonder with a downholder for pressing the fingers of a system carrier onto a heating plate A Wire Bonder has a downholder for pressing the fingers of a system carrier onto a heating plate. The downholder can be raised and lowered. A downholder in accordance with the invention contains four guide elements for bearing a holding plate, whereby each guide ele... | 11/14/2006 |
| 7118828 | Implantable battery The present invention discloses a device and method pertaining to battery construction. In the preferred embodiment, the shape and construction of the battery is designed to maximize energy density and efficiency, while minimizing volume and related restrictions. Fu... | 10/10/2006 |
| 7115324 | Method of combining welding and adhesive bonding for joining metal components A method of joining metal components having the steps of depositing adhesive material between the components and welding the components together via solid-state or fusion welding. The welds are spaced apart from the adhesive material and are produced so as to preven... | 10/03/2006 |
| 7093745 | Method of and apparatus for friction stir welding A body member and flange members are butted together at a first abutment portion and a second abutment portion. The first and second abutment portions are held by first and second backing jigs, respectively. The first backing jig has a circumscribing recessed sectio... | 08/22/2006 |
| 7073701 | Method of joining two members by friction stir welding This invention provides a configuration of a joint that allows a satisfactory welded joint to be formed with reduced deformation of the joint region when two-face structures (panels) are friction-welded end to end. The panels 31, 32 each have two substantiall... | 07/11/2006 |
| 7028881 | Method for providing removable weld backing Method for welding objects having limited backside access to a cavity behind a region to be welded. The method includes inserting a fugitive backing material in an installation state into a first portion of the cavity proximate the region to be welded and then trans... | 04/18/2006 |
| 7011244 | Centering insert and a method of assembling and welding together two pipe elements A centering insert device for centering two pipe elements that are to be welded together end to end, the device comprising a central body supporting a plurality of clamps. The clamps located at the center section planes have a circular conforming effect in at least ... | 03/14/2006 |
| 6866179 | Detachable welding tab assembly A welding tab assembly has a weld tab and a metal rod. The weld tab has an inverted L-shaped recess defined in one side of the weld tab and an inclined hole defined in a top face of the recess. The metal rod is inverted L-shaped and is received in the inverted L-sha... | 03/15/2005 |
| 6719186 | Method and apparatus for end-to-end welding of lined pipe A weld shield device for facilitating end-to-end welding of two pipe segments having fiberglass liners. The weld shield device includes an insulation material applied about the outer surface of a sleeve body. The sleeve body helps establish a welding gap between the... | 04/13/2004 |
| 6706992 | Welding apparatus and method for welding overlapping coated sheets A welding apparatus spot welds two or more overlapping sheets having a coating, such as zinc coated steel or aluminum alloy with an oxide coating. A hole is formed in the upper sheet at the desired point of spot welding. A clamping cup of a plasma arc passes surroun... | 03/16/2004 |
| 6398100 | Back-up clamp A back-up clamp suitable for backing up a weld to be formed between adjacent pipe lengths in a pipeline, the clamp having a rigid clamp body, at least one set of clamping members mounted upon the clamp body, a set of back-up shoes mounted upon the clamp b... | 06/04/2002 |
| 6161750 | Weld tab A weld tab has a tab which contains a circular groove therein. A metal stick is received in the circular groove. The tab has an end which has a snapping groove to receive a pad. The pad has two ends each received in the snapping groove of the tab.... | 12/19/2000 |
| 6059320 | Compressible pipe spacer used in welding A split, ring-shaped pipe spacer used to maintain separation between a pipe and a fitting shoulder during welding. The spacer has pairs of yieldable offset segments. The two segments of each pair bulge from the spacer body in opposite directions to mainta... | 05/09/2000 |
| 5954261 | Welding mold and method A mold for joining conductors such as stranded cable to each other and to other elements such as a ground rod is formed of two or more parts. The mold formed by the parts includes a weld chamber. Exothermic welding material in a crucible above forms molte... | 09/21/1999 |
| 5944247 | Protective device for seam being welded A protective device for welding a seam between a pair of workpieces has a flexible metallic band extending along the seam, spaced from surfaces of the workpieces, and having longitudinal edges on which are carried respective elastomeric heat-resistant str... | 08/31/1999 |
| 5915737 | Compressible pipe spacer used in welding A split, ring-shaped pipe spacer used to maintain separation between a pipe and a fitting shoulder during welding. The spacer has pairs of yieldable offset segments. The two segments of each pair bulge from the spacer body in opposite directions to mainta... | 06/29/1999 |
| 5769307 | Iron-type golf club head and production method therefor An iron-type golf club head 1 can elongate a travelling distance of balls for a long iron and can enable the better controlling of balls for a short iron. A head body 8, having a face 3, is formed from one material, while a hosel 7 formed from another mat... | 06/23/1998 |
| 5769306 | Weld root closure method for friction stir welds A method of root closure of friction stir welds in all types of stir weldable materials, especially difficult to weld materials, such as non-extrudable aluminum alloy 2024, 2014, 2090 and 7075. The method includes providing a backing device that has a rec... | 06/23/1998 |
| 5726408 | Weld backing ring for nozzle repairs A tube such as a nozzle to be repaired or tubular sections to be repaired or connected to each other, are welded using a backing ring having a groove in the area to be welded. The groove forms a purge space for purge gas between the ring and the tube to e... | 03/10/1998 |
| 5624067 | Method and apparatus for weld joining pipe sections A method and apparatus for groove weld joining pipe sections along a rotating preform having a circumferential groove thereon along which the preformed adjoining pipe sections are located to form a weld in the joining area and a underbead in the groove of... | 04/29/1997 |
| 5597108 | Plug style pipe line-up clamp with copper back-up shoes A line-up clamp (10) is disclosed for clamping small diameter pipe sections together for welding. The line-up clamp includes back-up shoe assemblies (106) which are pivoted into engagement with the interior surfaces of the pipe sections adjacent the weld ... | 01/28/1997 |
| 5590829 | Movable backing system A movable backing system enables it to continuously, easily perform full penetration welding along a weld line in a confined space, irrespective of the length, configuration and other factors of a weld zone. A weld backing, which has a backing member disp... | 01/07/1997 |
| 5566984 | Cylindrical corrosion barrier for pipe connections A connection joining abutted ends of pipe includes a sleeve therein which provides a continuous seal to protect the juncture of the pipe ends and the interior portions of the pipe adjacent the pipe ends from the materials passing through the pipe. The sle... | 10/22/1996 |
| 5536050 | Connection for fabricating mandrel bar from used segments In the fabricating of a mandrel bar, a plurality of used mandrel bar segments are provided, each of which has a central bore comprising a smooth surface portion and a threaded portion. Each segment has a circumferential recess at an end thereof and a beve... | 07/16/1996 |
| 5511721 | Braze blocking insert for liquid phase brazing operations A preform insert for use in preventing the flow of a braze or solder material into a void in an article during a brazing or soldering operation. The insert is particularly suited to brazing techniques for repairing stator vanes of a gas turbine, though eq... | 04/30/1996 |
| 5472134 | Weld joint container A joint container for forming a weld joint utilizing multiple adjacent metal plates which are spaced apart and positioned angularly to each other. One of the plates forming the joint may extend continuously through the joints along a straight line. At lea... | 12/05/1995 |
| 5455079 | Surface hardening of titanium alloys with melting depth controlled by heat sink A process for forming a hard surface coating on titanium alloys includes providing a piece of material containing titanium having at least a portion of one surface to be hardened. The piece having a portion of a surface to be hardened is contacted on the ... | 10/03/1995 |
| 5450996 | Seamer with improved back-up assembly This seamer (10) with back-up assembly (50) includes a first table (30) supporting one of the workpieces W1, a second table (32) supporting the other of the workpieces W2, fingers (40, 42) clamping the workpieces to the table, and an improved back-up asse... | 09/19/1995 |
| 5449107 | Weld backing A reusable weld backing capable of withstanding long use, which is held against the underside of a workpiece to provide weld-metal support in full penetration welding, the weld backing comprising a substrate made from copper or a copper alloy; and a coppe... | 09/12/1995 |
| 5395142 | Welding joint and backing sleeve therefore Welding joint (18,22) connecting workpieces (19,20,24,29) having a throughlet (25) comprising a weld (21,34) wherein a backing sleeve (10,28) is held within the workpieces (19,20,24,29) in the region of the weld. The welding joint comprises a partition la... | 03/07/1995 |
| 5356067 | Internal line up clamp An improved internal line up clamp (10) is disclosed which has an integral back up ring (12). A first set of pipe clamps (22) move radially outward to engage the inner surface of a first pipe (14). A second set of pipe clamps (62) and a set of back up rin... | 10/18/1994 |
| 5323950 | Flexible, adjustable welding backup mandrel A backup mandrel apparatus to engage the inner surface of a metal tube being welded to support the weld bead and to keep a molten weld puddle from sagging and falling through the tube wall during welding. The apparatus includes a flexible inflatable bladd... | 06/28/1994 |
| 5158225 | Backing tool for welding A hand held backing plate tool for the welding repair of holes in sheet metal panels includes a demountable backing plate which may be selected with a size and shape adapted to fit the contour of the panel adjacent the hole to be repaired. The selected ba... | 10/27/1992 |
| 5137202 | Pipe joint lead stop and method An article for providing a barrier between solder in a piping joint and the interior of the piping joint so that drinking water flowing therethrough is not contaminated by lead particles resulting from water flow erosion of the solder. The barrier article... | 08/11/1992 |
| 5110031 | Weld suporting ring for pipes For internally supporting the annular weld during welding together of two pipe ends of two pipes extending mutually in line a weld supporting ring is used consisting of ring pieces comprising at least one supporting body of ceramic material bounding the o... | 05/05/1992 |
