Did You Know...
...that the Band-Aid Bandage was invented by a Johnson & Johnson employee whose wife had cut herself? Earl Dickson's wife was rather accident prone, so he set out to develop a bandage that she could apply without help. He placed a small piece of gauze in the center of a small piece of surgical tape, and what we know today as the Band Aid bandage was born!
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| Number | Title | Issue Date |
| D554254 | Absorbent pad | 10/30/2007 |
| 5709529 | Optimization of turbomachinery harmonics A turbomachine assembly includes a number of circumferentially spaced rotor blades, a number V of circumferentially spaced guide vanes axially adjacent to the rotor blades, an annular chamber surrounding the rotor blades, and an intake and exhaust for rec... | 01/20/1998 |
| 5653181 | Separation of particulate from flue gas of fossil fuel combustion and gasification The gas from combustion or gasification of fossil fuel contains flyash and other particulate. The flyash is separated from the gas in a plurality of standleg moving granular-bed filter modules. Each module includes a dipleg through which the bed media flo... | 08/05/1997 |
| 5644911 | Hydrogen-fueled semi-closed steam turbine power plant A semi-closed steam turbine power system and method of operation which employs a combustor which injects and combusts hydrogen fuel and oxygen oxidant in a stoichiometric ratio so that the primary by-product of the combustion process is H2 O. T... | 07/08/1997 |
| 5640840 | Recuperative steam cooled gas turbine method and apparatus A recuperative steam cooled gas turbine in which steam used to cool the turbine section is subsequently introduced into the combustors, thereby recuperating the heat absorbed by the steam during cooling. The steam is generated in a heat recovery steam gen... | 06/24/1997 |
| 5639216 | Gas turbine blade with cooled platform A turbine blade has a cooling air flow path specifically directed toward cooling the platform portion of the blade root. Two cooling air passages are formed in the blade root platform just below its upper surface. Each passage extends radially outward fro... | 06/17/1997 |
| 5636510 | Gas turbine topping combustor A combustor for burning a mixture of fuel and air in a rich combustion zone, in which the fuel bound nitrogen in converted to molecular nitrogen. The fuel rich combustion is followed by lean combustion. The products of combustion from the lean combustion ... | 06/10/1997 |
| 5618161 | Apparatus for restraining motion of a turbo-machine stationary vane A stationary vane assembly for a turbo-machine in which the vane is restrained against motion in the circumferential direction by first and second locking pins. The second locking pin extends radially through a turbine cylinder and engages a notch in a do... | 04/08/1997 |
| 5609466 | Gas turbine vane with a cooled inner shroud A gas turbine vane having an inner shroud that is cooled by a portion of the cooling air directed to a cavity between two adjacent rows of discs. A portion of the cooling air in the cavity flows through impingement plates and impinges on the inner surface... | 03/11/1997 |
| 5596512 | Method of determining the condition of a back-up battery for a real time clock A method of determining the condition of a battery which backs up a real-time clock (RTC) when a main power supply fails or is disconnected, in a system which includes a controller having a volatile random access memory (VRAM) and a non-volatile random ac... | 01/21/1997 |
| 5595059 | Combined cycle power plant with thermochemical recuperation and flue gas recirculation Combined cycle power plants are disclosed that utilize a stream of compressed flue gas and fuel that has been passed through a reformer (a thermochemical recuperator) to increase its thermal and chemical value and, along with the output of an air compress... | 01/21/1997 |
| 5591363 | Optimized welding technique for NiMoV rotors for high temperature applications A process of depositing layers of weld metal onto a ferrous NiMoV low alloy steel turbine component. During a deposition of a first layer of weld metal, low levels of amperage are used to prevent a dramatic increase in a level of hardness of a heat affect... | 01/07/1997 |
| 5579631 | Steam cooling of gas turbine with backup air cooling A gas turbine power plant in which a mixture of steam and compressed air, the mixture being primarily steam, is used to cool the rotating blades and stationary vanes in the turbine section. The air is bled from the compressor. The flow rate of steam that ... | 12/03/1996 |
| 5573370 | Steam turbine A steam turbine having improved stationary parts in which a moisture removal slot is formed in a blade ring cylinder immediately upstream of the last row of rotating blades. The slot has a reduced width inlet throat portion and an enlarged manifold portio... | 11/12/1996 |
| 5566542 | Method for regulating and augmenting the power output of a gas turbine A method of operating a gas turbine in which variations in power requirements are accomplished by varying the rate of steam injection into the combustor while maintaining the temperature of the fluid flowing to the turbine at a constant value. The steam i... | 10/22/1996 |
| 5564269 | Steam injected gas turbine system with topping steam turbine A gas turbine power plant having a heat recovery steam generator that generates steam at high and low pressures. The high pressure steam, which is superheated, is partially expanded in a steam turbine, thereby producing shaft power. All of the partially e... | 10/15/1996 |
| 5561817 | Method of securely controlling direct memory access (DMA) of a shared memory by a DMA device on an expansion board A method of securely controlling direct memory access (DMA) in a microprocessor controlled system having a CPU on a CPU board which has an address/data bus connector for selectively connecting an expansion board to the CPU board, and a random access memor... | 10/01/1996 |
| 5557920 | Combustor bypass system for a gas turbine An apparatus for causing a portion of the compressed air from the compressor section of a gas turbine to bypass the combustor. The apparatus comprises a clamping ring and a rotating ring. The clamping ring joins the aft end of the combustor to the front e... | 09/24/1996 |
| 5557941 | Refrigeration unit and method of operating same A refrigeration unit, and method of operating same, having a compressor driven by a prime mover. The prime mover is selectively operable in either a continuous mode which includes heating and cooling cycles, or in start-stop cycling mode which includes co... | 09/24/1996 |
| 5555723 | Ducting for an external gas turbine topping combustor A gas turbine power plant having a pressurized fluidized bed combustor and an external topping combustor. A cylindrical duct and a toroidal duct direct the flow of hot gas from the topping combustor and distribute it around the circumference of the turbin... | 09/17/1996 |
| 5540551 | Method and apparatus for reducing vibration in a turbo-machine blade Vibration in the blade of a turbo-machine is suppressed by the incorporation of both inner and outer restraints that inhibit deflections of the blade foils. The outer restraint comprises shroud, welded lugs or tie wires that divide the row of blades into ... | 07/30/1996 |
| 5530647 | Method of dynamically determining oil change intervals for internal combustion engines A method of dynamically determining engine oil change intervals for an internal combustion engine having selectable high and low operating speeds HS and LS, respectively. The method includes the steps of accumulating operating time THS of the internal com... | 06/25/1996 |
| 5524341 | Method of making a row of mix-tuned turbomachine blades A row of mix-tuned rotor blades for use in a turbomachine in which the first mode vibratory frequency of each of the blades falls into either of two distinct groups. The blades from the first group alternate with the blades from the second group so that n... | 06/11/1996 |
| 5518366 | Exhaust system for a turbomachine An exhaust system for an axial flow turbomachine having a diffuser comprised of inner and outer flow guides that direct the flow of working fluid from a turbine cylinder to an exhaust housing having a bottom opening, thereby turning the flow 90° from the... | 05/21/1996 |
| 5513547 | Combustion turbine alignment method and apparatus In a turbine system of the type wherein a first large cylinder having a first flange is connected to a second large cylinder having a second flange by a multiplicity of bolts securing the first flange to the second flange, a method of precisely aligning t... | 05/07/1996 |
| 5511937 | Gas turbine airfoil with a cooling air regulating seal A gas turbine vane airfoil has an aft cavity in which an insert is placed so as to form a cooling air passage between the insert and the walls that form the cavity. The insert serves to distribute cooling air around the passage. Cooling air from the passa... | 04/30/1996 |
| 5499512 | Methods and apparatus for converting a manually operable refrigeration unit to remote operation Methods and apparatus for converting a refrigeration unit having a manually controlled thermostat to remote operation via a data logger, without replacing the manually controlled thermostat. A set point temperature selector associated with the thermostat ... | 03/19/1996 |
| 5497613 | Hot gas manifold system for a dual topping combustor gas turbine system A hot gas manifold system for a gas turbine power plant utilizing a pressurized fluidized bed combustor producing gas that is heated in two topping combustors. Each topping combustor is connected to a separate manifold. The manifolds, which are adjacent e... | 03/12/1996 |
| 5494405 | Method of modifying a steam turbine A steam turbine having improved stationary parts in which a moisture removal slot is formed in a blade ring cylinder immediately upstream of the last row of rotating blades. The slot has a reduced width inlet throat portion and an enlarged manifold portio... | 02/27/1996 |
| 5488825 | Gas turbine vane with enhanced cooling A gas turbine stationary vane having an airfoil portion and inner and outer shrouds. Five serpentine radially extending cooling air passages are formed in the vane airfoil. The first passage is disposed adjacent the leading edge of the airfoil and the sec... | 02/06/1996 |
| 5482435 | Gas turbine blade having a cooled shroud A gas turbine blade having a shroud extending outwardly from the tip of the airfoil portion of the blade. The shroud is cooled by cooling air passages formed within it. A radial cooling air supply hole directs cooling air directly from the blade root thro... | 01/09/1996 |
| 5479826 | Microwave system for monitoring turbine blade vibration A method for monitoring turbine blade vibrations comprises the step of transmitting a continuous wave of microwave energy toward a rotating row of blades. Each passage of an individual blade tip through the path of the continuous wave produces a signal in... | 01/02/1996 |
| 5479782 | Gas turbine combustor A combustor for a gas turbine having a centrally located fuel nozzle and inner, middle and outer concentric cylindrical liners, the inner liner enclosing a primary combustion zone. The combustor has an air inlet that forms two passages, each of which has ... | 01/02/1996 |
| 5480285 | Steam turbine blade A steam turbine blade having an airfoil portion and root portion by which the blade is affixed to a rotor. The geometry of the blade airfoil is configured to minimize energy loss through the row of blades and reduce the weight of the airfoil. The airfoil ... | 01/02/1996 |
| 5473898 | Method and apparatus for warming a steam turbine in a combined cycle power plant A combined cycle gas turbine power plant uses compressed air bleed from the gas turbine compressor discharge air as a source of warming air for the steam turbine at start-up by incorporating a bypass line from the compressor discharge to the steam chest. ... | 12/12/1995 |
| 5458188 | Air conditioning and refrigeration systems utilizing a cryogen and heat pipes A refrigeration system, which conditions the air of a conditioned space via heating and cooling cycles, includes a heat exchanger and, in a first embodiment, heat pipes. A cryogen is circulated through the heat exchanger during a cooling cycle. During a h... | 10/17/1995 |
| 5456088 | Refrigeration unit and method of operating same A refrigeration unit, and method of operating same, having a compressor driven by a prime mover. The prime mover is selectively operable in either a continuous mode which includes heating and cooling cycles, or in start-stop cycling mode which includes co... | 10/10/1995 |
| 5442908 | Combined combustion and steam turbine power plant A combined combustion and steam turbine power plant which includes a steam turbine unit, a boiler unit for supplying steam to the steam turbine unit, and a combustion turbine unit with an exhaust gas duct structure for supplying the turbine exhaust gases ... | 08/22/1995 |
| 5442285 | NDE eddy current sensor for very high scan rate applications in an operating combustion turbine The present invention provides an eddy current sensing device capable of in-situ operation within a high temperature and high vibration environment of a combustion turbine engine. The eddy current sensing device is preferably utilized in an eddy current s... | 08/15/1995 |
| 5435138 | Reduction in turbine/boiler thermal stress during bypass operation A method of reducing turbine inlet temperature excursions during sudden load demand reductions on a steam turbine, the turbine being coupled to a controllable source of high pressure, high temperature steam, incorporates throttling of steam within the ste... | 07/25/1995 |
