Did You Know...
...that in the early 1940s GE engineer James Wright was charged with a task of utmost importance to the war effort: develop a cheap substitute for rubber that could be used to produce tires, gas masks and a whole host of military gear. Wright tackled the task diligently -- and wound up inventing Silly Putty.
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| Number | Title | Issue Date |
| 7748597 | Device for production of a tube The invention relates to a device (1) for production of a tube (2) with a polygonal, preferably rectangular cross-section, comprising a tube welding unit (3), in which the tube (2) is formed from a sheet metal strip and welded at the resu... | 07/06/2010 |
| 7434718 | Device for cutting or welding tubular workpieces or the like The invention relates to a device (1) for cutting or welding tubes (3) or similar workpieces, said device comprising a guiding mechanism which is used to control the cutting or welding torch (17) along a pre-determined line and is provided with ... | 10/14/2008 |
| 7350386 | Method and apparatus for making tubes In a method of making a tube, a sheet metal blank is placed in a U-shaped cavity of a lower mold of a shaping tool, and pressed into the cavity by a ram to shape the blank into a U-shaped configuration. In a next process step, the U-shaped blank is formed between an... | 04/01/2008 |
| 7335265 | Apparatus and method for coating stents An apparatus for coating implantable medical devices, such as stents, is disclosed. A method of coating stents using the apparatus is also disclosed. The apparatus includes a barrier or barriers for isolating an area of the stent on which a composition for coating a... | 02/26/2008 |
| 7290337 | Manufacturing method for frame body and frame body In this manufacturing method for a frame body, after ring rolling a metal material to form a ring-shaped member, a rectangular member is formed by pressing and deforming this ring-shaped member in the radial direction. At this time, an angle of corner portions that ... | 11/06/2007 |
| 7251890 | Method for producing wheel pans A method for producing a wheel pan includes cold-rolling a rectangular metal strip of a given uniform thickness by conical rolls into a semicircular ring, such that the thickness reduction on the outer edge of the curved strip is at least 20%, and the circumference ... | 08/07/2007 |
| 7207201 | U/Z-shaped steel bar manufacturing process Disclosed is an U/Z-shaped steel bar manufacturing process, which includes the steps of (a) supplying a steel sheet material from a material rack to a flattening machine, (b) operating the flattening machine to flatten the steel sheet material and then delivering th... | 04/24/2007 |
| 7159317 | Inner metal link bushing for a vibration isolator and method for forming An inner metal link bushing is formed by providing flat steel stock having a chamfered edge disposed at an angle relative to the surfaces such that, when the flat stock is reshaped to a tubular formation, the edges forming a longitudinal seam will initially contact ... | 01/09/2007 |
| 7157672 | Method of manufacturing stainless steel pipe for use in piping systems A welded low carbon dual phase (ferrite plus martensite) and/or low carbon martensitic stainless steel PIPE having requisite yield strength and corrosion and/or erosion resistance is shown. Pipe can be manufactured up to a maximum outside diameter from finished plat... | 01/02/2007 |
| 7107682 | Method for manufacturing tubes and profiles The invention relates to a method for manufacturing tubes and profiles with variable wall thickness over the length. The method comprises the steps of flexible rolling of continuous material strip with variable thickness in the longitudinal direction of the strip ma... | 09/19/2006 |
| 7086153 | Method and apparatus for manufacturing heat exchanger tube Distortion of the cross-sectional shape of a tube when producing a heat exchanger tube by cutting a continuous tube is prevented by forming cutting grooves in a strip material in advance by an upper and bottom cutter. The two side edges of the strip shaped member wh... | 08/08/2006 |
| 7082795 | Metal tube and its production method A small diameter metal tube having at least two inner diameters is provided. A method for producing this metal tube is also provided. In this method, a plate member having a development shape of the metal tube is blanked from a metal thin plate so that the plate mem... | 08/01/2006 |
| 7066375 | Aluminum coating for the corrosion protection of welds A method for coating and an associated assembly including such a coating are provided. The assembly includes a workpiece defining a weld portion, such as a friction weld joint and a heat affected zone. A coating is disposed on the weld portion to at least partially ... | 06/27/2006 |
| 6892928 | Method of manufacturing tubular body, by friction stir welding Method of manufacturing a tubular end product, wherein an aluminum plate is formed into a generally cylindrical body such that opposite end sections of the cylindrical body are flattened and butted together along a joint region extending parallel to an axis of the c... | 05/17/2005 |
| 6373017 | Continuous hot rolling mill with metal block conveying apparatus A continuous hot rolling mill with a metal block conveying apparatus and a metal block joining apparatus which moves with the metal blocks along the metal block conveying apparatus to conform a joining operation. The metal block conveying apparatus uses r... | 04/16/2002 |
| 6252211 | Method of joining metal pieces A method and apparatus for joining metal pieces wherein the rear end of a preceding metal piece and a front end of a metal piece are heated and then pressed together prior to hot finished rolling. The temperature the ends of the metal pieces are heated to... | 06/26/2001 |
| 5950905 | Method and apparatus for welding container bodies In a guide and calibrating tool for guiding container bodies for welding, at least one of the guide rollers is driven. The drive is pneumatic, by compressed air blown by a nozzle onto recesses in the roller. The roller is driven only initially upon restar... | 09/14/1999 |
| 5794840 | Process for the production of pipes by the UOE process A process for the producing of pipes, in particular large pipes, by the UOE process, in which the pipes are sized by cold expansion after internal and external seam welding. In order to render the strength characteristics and deformation characteristics s... | 08/18/1998 |
| 5772105 | Clad shape memory alloy composite structure and method A composite structure comprising a body having a surface. Cladding covers at least a part of the surface. The body and the cladding are formed of different materials, at least one of which is a shape memory alloy having a recoverable strain in excess of 1... | 06/30/1998 |
| 5753894 | Hot rolling method for continuously joining metal blocks and an apparatus for the same The invention comprises a continuous hot rolling method in which a rear end portion of a preceding metal block and a fore end portion of a succeeding metal block are cut and the metal blocks are joined to each other by heating and pressing followed by a f... | 05/19/1998 |
| 5657922 | Machine and process for forming tapered or cylindrical utility poles from flat sheet metal A method and apparatus for producing tapered, cylindrical poles from trapezoidal metal strips. The process is comprised of the steps of curling or pre-forming a trapezoidal blank, then forming the pre-formed blank into a tubular shape by means of a shovel... | 08/19/1997 |
| 5497935 | Automated production lines for rolled and welded ferrules The invention is in the field of metallurgy and relates to an automatic machine for the continuous production of cylindrical shells from a pile of flat metal sheets. Said machine is characterized in that it is comprised of, from the output of the shell to... | 03/12/1996 |
| 5230135 | Top bar for carding machine A top bar for carding machines formed from an elongated hollow cold drawn annealed profile. The annealing relieves any stresses developed in the profile during the cold drawing and a dimensionally stable top bar results therefrom.... | 07/27/1993 |
| 5143897 | Flexible, high temperature superconductive cables Method of manufacturing a flexible, high temperature superconductive cable by longitudinally imbedding a ceramic oxide material in a band source material, and then compressing same to form an elongated flat band, which in turn is deformed into a hollow tu... | 09/01/1992 |
| 5011064 | Method of manufacturing a double-walled tube A device for making a doubled-walled pipe having a wear-resistant internal pipe and a shock-resistant external pipe. The internal pipe is prefabricated. The external pipe is made from an initial pre-curved metal sheet. The shaping of the external pipe aro... | 04/30/1991 |
| 5005395 | Method of manufacturing electric welded pipes under hot conditions A method of producing an electric-welded pipe by continuously shaping a steel sheet into a tubular form in a hot condition is disclosed, which is characterized by employing a forming roll arrangement of the constant pass-line type in combination with the ... | 04/09/1991 |
| 5000369 | Method and apparatus for manufacturing plastic-lined pipe Method for continuously manufacturing plastic-lined metallic pipe. The method includes an extruder having an output providing a plastic sleeve and further includes a continuous roll-forming tubing mill production line. This production line includes a seri... | 03/19/1991 |
| 4971240 | Method and apparatus for forming heat exchanger tubes In a method and apparatus of forming a flat metal strip into a tube having generally flat side walls connected by bight portions along their opposite longitudinal edge portions comprising the steps of directing the strip between a pair of form rolls to be... | 11/20/1990 |
| 4886203 | Method of producing by brazing bimetallic cylindrical articles A method of brazing of an outer carbon steel shell to an inner stainless steel shell, in which a stainless steel sheet material of the inner shell is rolled up with an overlap and arranged with a clearance inside the outer shell, braze material is placed ... | 12/12/1989 |
| 4869420 | Method of diffusion bonding and densifying material of a heater element for an electron beam tube Refractory metals or ceramics are diffusion bonded or densified by assembling the workpieces to be bonded, wrapping the assembly with carbon yarn, heating the wrapped assembly, cooling the assembly and unwrapping. The expansion of the workpieces together ... | 09/26/1989 |
| 4840304 | Butt-welded cans and process for manufacturing the same A process for manufacturing the butt-welded cans comprises the steps of applying a 0.5 to 3.5 μm thick organic resin film for preventing the adhesion of melted metal particles to at least a 1-mm-wide region from the butt-weld portion edge of at least the... | 06/20/1989 |
| 4824007 | Method and device for the orientation and logitudinal movement of rounded can bodies in relation to a welding apparatus In order to hold the longitudinal edges (12, 14) of a can body (10) which are to be butt-welded together contiguous with one another on the way to a welding apparatus (52), the can body (10) is moved past a magnet (40) by means of which the longitudinal e... | 04/25/1989 |
| 4805795 | Butt-welded cans and process for manufacturing the same There is here provided butt-welded cans made of steel plates having a carbon concentration of 0.02 to 0.09% by weight, the aforesaid butt-welded cans being characterized in that a coating film for preventing the adhesion of melted metal particles is appli... | 02/21/1989 |
| 4741470 | Method for assembling an optical fiber communication cable An optical fiber communication cable and a process for making it comprise providing at least one optical fiber and surrounding the optical fiber with a high strength drawn copper alloy tube having a generally longitudinally extending seam. The edges of th... | 05/03/1988 |
| 4675496 | Method and apparatus for making a can body A method of making a can body is provided. The method comprises forming a ferromagnetic metal blank into a can body preform having adjacent confronting side edges whose edge faces are spaced, magnetizing the confronting edges to have a reverse polarity to... | 06/23/1987 |
| 4660754 | Process of forming welded tubing An improvement in a continuous rolling mill for forming flat steel strip into tubing. The improvement is a strip preparation station including upper and lower composite roller systems. Each system has end rollers which define a pass path for the strip. Th... | 04/28/1987 |
| 4635841 | Method for bringing together the edges of a blank of sheet metal rolled to a cylinder as well as a guide apparatus for performing the method A guide rail serves for bringing together the edges of blanks of sheet metal rolled to form cylinders. The guide rail contains curved guide slots for the sheet metal edges. The guide slot bases are planar and converge toward the exit end of the guide rail... | 01/13/1987 |
| 4611480 | Metallic wall having knockouts and method of forming An elongated wall formed substantially of metallic material. The wall includes a first surface and a second surface spaced from the first surface. A plurality of spaced knockout portions are disposed in incipient apertures extending through the wall and t... | 09/16/1986 |
| 4590781 | Method for forming an electric resistance welded steel pipe An improved method of forming a skelp into a rounded tubular form in the preparation of an electric resistance welded steel pipe. Different from conventional methods, the skelp is bent in the initial and intermediate forming stages within a limited region... | 05/27/1986 |
| 4577925 | Optical fiber communication cables and method and apparatus for assembling same An individually armored fiber optic core assembly having a diameter less than about 0.050" is provided as well as a process for making same. A fiber optic core comprising a fiber optic element and a surrounding protective layer is encased within a drawn m... | 03/25/1986 |
