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| Number | Title | Issue Date |
| 8151570 | Transition duct cooling feed tubes Embodiments for an apparatus and associated method for providing a cooling fluid to a gas turbine transition duct in order to lower the effective operating temperatures of the transition duct are disclosed. The transition duct has an inner liner and an impingement s... | 04/10/2012 |
| 8142137 | Cooled gas turbine vane assembly A gas turbine vane to improve vane performance by addressing known failure mechanisms. A cooling circuit to the trailing edge of a vane airfoil is fed from the outer diameter platform, which prevents failure due to an oxidized and eroded airfoil trailing edge. The g... | 03/27/2012 |
| 8079265 | Portable scanner device for metallurgical, nondestructive testing A portable, self-contained scanner device for metallurgical, nondestructive testing is provided. The portable, self-contained scanner device includes a chassis having wheels extending beneath a lower surface thereof, a nondestructive testing probe detachably fixed t... | 12/20/2011 |
| 7984650 | Portable ultrasonic scanner device for nondestructive testing A scanner device for performing nondestructive testing of a tube includes an ultrasonic probe, a waveguide (wedge) secured relative to the probe, and an encoder secured relative to the probe. The waveguide has a surface contoured in relation to a radius of a tube to... | 07/26/2011 |
| 7963097 | Flexible assembly of recuperator for combustion turbine exhaust A recuperator includes a heating gas duct; an inlet manifold; a discharge manifold; and a once-through heating area disposed in the heating-gas duct through which a heating gas flow is conducted. The once-through heating area is formed from a plurality of first sing... | 06/21/2011 |
| 7954458 | Boiler having an integrated oxygen producing device A system is described wherein a boiler 10 is integrated with an oxygen producing device 12. Combustion heat generated in the boiler 10 is used to generate steam in the boiler and is also applied to at least one of a sweep gas stream 13 an... | 06/07/2011 |
| 7777977 | Flame scanner collimator body A flame scanner collimator, which monitors flames produced by a fossil fuel fired combustion chamber, includes: a substantially cylindrical collimator body defining a hollow portion; a first chamber connected to a second chamber, the first and second chambers defini... | 08/17/2010 |
| 7646005 | Variable length adjustable flame scanner An apparatus for varying a length of a flame scanner assembly for monitoring a flame includes a mounting shaft which connects to a fiber optic cable assembly; and a spool assembly having a first end and a second opposite end. The first end connects to a detector hea... | 01/12/2010 |
| 7584918 | Wear plate assembly for vertical rotor of a pulverizer A wear plate assembly includes a body portion and an abutment flange extending from a radially outer circumferential edge of the body portion and substantially normal thereto. The abutment flange is cooperatively configured with respect to another abutment flange of... | 09/08/2009 |
| 7584917 | Seal for coiled spring assembly A coil spring assembly for connection with a separator body to apply a spring force to a grinding roll of a journal assembly to pulverize solid fuel. The coil spring assembly includes: a preload stud having a first end in communication with the journal assembly and ... | 09/08/2009 |
| 7325761 | Hammer for a material size reduction machine A hammer 28 is provided for a material size-reducing machine of the type including a rotor on which the hammer is individually pivotally mounted. The hammer 28 includes a mounting end 36 having a throughbore for receiving a pivot pin therethroug... | 02/05/2008 |
| 7323036 | Maximizing regulatory credits in controlling air pollution A controller directs the operation of an air pollution control (APC) system having one or more controllable operating parameters and a defined operating limit representing a regulatory limit on an allowed amount of pollutant to be emitted by the APC system. An inter... | 01/29/2008 |
| 7296763 | Keyless frictional shaft/hub locking device A grinder roll assembly (500) is provided herein. The grinder roll assembly (500) includes a grinder roll (505), a shaft (510) in a through bore of the grinder roll, a first tapered sleeve (615A), and a second tapered sleeve (61... | 11/20/2007 |
| 7289032 | Intelligent flame scanner Techniques for determining a characteristic of a flame are provided by the present invention. Provided are methods as well as devices. A flame is monitored across a contiguous spectral range to detect light emitted by the monitored flame. The contiguous spectral ran... | 10/30/2007 |
| 7267293 | High efficiency bowl mill A high efficiency bowl mill (100) is provided by the present invention. Included in the high efficiency bowl mill (100) is a plow (185) that is downstream of a grinding roll (180) on a grinding surface (145). The plow (185) ... | 09/11/2007 |
