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Thomas Edison ; 1889
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| Number | Title | Issue Date |
| 7805822 | Process for removing thermal barrier coatings A process which uses an air jet containing non-abrasive particulate media at a low pressure which selectively removes thermal barrier coatings from components without damaging the metallic substrate. This process selectively removes thermal barrier coatings from the... | 10/05/2010 |
| 6684823 | Impulse ash deposit removal system and method An impulse generator produces controlled pressure waves for removing ash deposits from heat exchangers in a boiler. The impulse generator has a fuel inlet, an air inlet, an ignitor, an outlet, and a control system for selectively and intermittently igniti... | 02/03/2004 |
| 6119323 | Apparatus for the descaling of rolled metal stock Structural shapes are descaled with water or air jets from a distributor beam in the form of a tube bundle extending across the path of the structural shape and rotatable to juxtapose a selected nozzle array with the structural shape. The nozzle arrays on... | 09/19/2000 |
| 5389761 | Method and apparatus for cleaning metal pieces prior to resistive seam welding or laser lap seam welding An apparatus comprises a current source, first and second wheels through which a current from the current source selectively flows, and a source of gas, wherein the first and second wheels receive first and second pieces of metal having overlapping portio... | 02/14/1995 |
| 5355570 | Method for the production of bright round steel A method for producing bright steel, particularly bar-shaped bright round steel produced from hot-rolled steel. The method includes rounding the round steel coming from rolling heat in a sizing mill to close tolerances, extensively removing the oxide film... | 10/18/1994 |
| 4175412 | Process and installation for mechanical descaling steel wire Descaling of metal wire by bending is followed by projection of the scale from the wire. The scale, projected by nozzles in a descaling device, is a mixture of new scale coming directly from the wire undergoing the bendings and scale recycled several time... | 11/27/1979 |
