Did You Know...
...that the inventor of the electric motor was a blacksmith named Thomas Davenport? Described as "a brilliantly unsuccessful inventor", Davenport invented the first rotary electric motor. In 1836 he headed out -- on foot -- from his Vermont home to file a patent application at the Patent Office in Washington, D.C. By the time he got there, he had squandered away his money and couldn't afford the $30 filing fee so he turned around and went home. When he later mailed in his application with money he'd raised, the Patent office was destroyed in a fire. He did finally get credit for his invention on Feb. 5, 1837.
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| Number | Title | Issue Date |
| 8182385 | Electromechanical differential lock assembly A differential lock assembly includes a shift collar (36) that is moved in response to an electronic input signal between locked and unlocked positions. A coil housing (40) is supported on the shift collar and includes a recess (42) that receive... | 05/22/2012 |
| 8182050 | Brake system and method A system for adjusting a brake force to be applied by a brake includes a module for estimating a weight of a vehicle to which a brake is fitted, a module for determining an angle of incline upon which the vehicle is positioned, and a control unit for calculating a s... | 05/22/2012 |
| 8181752 | Brake overstroke indication system A vehicle brake assembly provides an indicator system in which the operating shaft assembly rotates about a pivot axis to rotate a cam member attached thereto against a cam surface which extends from an indicator adjustment shaft. The cam member drives the cam surfa... | 05/22/2012 |
| 8172237 | Active suspension and adaptive damping configuration A vehicle suspension utilizes an active air suspension system in combination with an adaptive damping system to provide a desired ride and handling output. The active air suspension and adaptive damping system can operate independently of each other, or can work in ... | 05/08/2012 |
| 8171745 | Compartment cooling loss identification for efficient system operation A galley cooling system comprises a plurality of galley cooling units each to be associated with separate galleys. A sensor senses a condition within each of the galleys. A control determines whether a sensed condition is indicative of efficient operation of a parti... | 05/08/2012 |
| 8169172 | Synchronous disturbance suppression in a variable speed motor drive A variable speed drive for an electric motor has an inverter for receiving pulse width modulation controls. The inverter communicates power signals to a poly-phase electrical motor. A resolver communicates signals from the poly-phase motor back to a motor control. T... | 05/01/2012 |
| 8167594 | Scroll compressor with materials to allow run-in A scroll compressor comprises a non-orbiting scroll member having a base and a generally spiral wrap extending from its base, and an orbiting scroll member having a base and a generally spiral wrap extending from its base. The wraps of the non-orbiting and orbiting ... | 05/01/2012 |
| 8162605 | Gas turbine engine case A case for a gas turbine engine includes a single-piece case that includes a combustor case portion and a turbine case portion that is integrally formed with the combustor case portion as one piece. In one example, the single-piece case includes a transition duct/mi... | 04/24/2012 |
| 8161643 | Method for forming a cooling jacket for an electric motor A cooling jacket for a motor includes an extruded jacket body having an outer peripheral surface, an inner peripheral surface, and a plurality of discrete cooling passages located between the inner and outer peripheral surfaces that provide multi-directional fluid f... | 04/24/2012 |
| 8157551 | Scroll compressor with back pressure pocket receiving discharge pressure fluid A face of a base of an orbiting scroll member is aligned with a thrust bearing. The thrust bearing includes a back pressure pocket and a seal for sealing the back pressure pocket to entrap a compressed fluid. There is a tap for tapping fluid at a discharge pressure ... | 04/17/2012 |
| 8152674 | Auxiliary lubrication pump for carriers A carrier assembly includes an auxiliary lubrication pump that lubricates gear components positioned within an internal cavity of a carrier housing. A differential gear assembly is positioned within the internal cavity to rotate about an axis. The auxiliary lubricat... | 04/10/2012 |
| 8148866 | Regulated hybrid permanent magnet generator A permanent magnet rotor for an electrical generator has pole pieces with permanent magnets. A control coil is associated with the pole pieces. A current flow through the coils is controlled to achieve a desired output voltage at an output for the generator. ... | 04/03/2012 |
| 8147579 | Dispatch critical fuel tank inerting system for aircraft An air inerting system for supplying nitrogen-enriched air to a fuel tank on a vehicle includes an air separation module. The air separation module has an inlet for receiving air to separate oxygen, and an outlet for delivering nitrogen-enriched air to a downstream ... | 04/03/2012 |
| 8137085 | Gear pump with slots in teeth to reduce cavitation A gear pump comprises a drive gear being mounted for rotation about a first axis and having a plurality of gear teeth at a radially outer location. A driven gear is mounted for rotation about a second axis, and having a plurality of teeth at a radially outer locatio... | 03/20/2012 |
| 8136825 | Tubular axle beam suspension mount A suspension mount for a vehicle axle includes first and second mount components that are positioned on opposing sides of the axle. A spring is supported by the first and second mount components. The axle is comprised of a tubular beam body that encloses a cavity. T... | 03/20/2012 |
| 8136364 | Refrigerant system with expansion device bypass A refrigerant system is provided with an expansion device that may be a thermostatic expansion device or an electronic expansion device. A bypass line selectively allows a portion of refrigerant to bypass the expansion device and to flow through a fixed restriction ... | 03/20/2012 |
| 8132740 | Gas dynamic spray gun A portable gas dynamic cold spray gun eliminates many of the inherent limitations of the prior art by minimizing a scatter of operating parameters and improving its efficiency. According to one feature of the present invention, the powder flow rate is continuously m... | 03/13/2012 |
| 8130479 | Ground fault interrupts for solid state power controllers A solid state power control scheme is provided with a ground fault interrupt function. Essentially, if a neutral wire is associated with the power supply, the current is sensed in that neutral wire. The sensed neutral wire current is subtracted from a summed current... | 03/06/2012 |
| 8128348 | Segmented cooling air cavity for turbine component A component for a gas turbine engine has an airfoil with internal cooling channels for delivering air from a radially outer end of the airfoil toward a radially inner end of the airfoil. The cooling channels are separated from adjacent cooling channels by sets of at... | 03/06/2012 |
| 8127786 | Proportional selector valve for selecting between two pressure sources A selector valve selects between the supply of a primary pressure supply and a secondary pressure supply to a downstream use. The selector valve moves between a first position at which it supplies fluid from a primary line to the use, and a second position at which ... | 03/06/2012 |
| 8127547 | Gas turbine engine with air and fuel cooling system A gas turbine engine is provided with a first heat exchanger associated with a cooling air flow to deliver cooling air to a turbine section. A second heat exchanger is associated with a fuel supply line for delivering fuel into a combustion section. An intermediate ... | 03/06/2012 |
| 8113804 | Vane pump with rotating cam ring and increased under vane pressure An example vane pump comprises a shaft driving a rotor. The rotor has a plurality of vane grooves, with a vane received in each of the plurality of vane grooves, and an under vane chamber for communicating a pressurized fluid into the grooves to bias the vanes radia... | 02/14/2012 |
| 8113767 | Auxiliary power unit inlet duct with acoustic silencing An inlet duct for an auxiliary power unit comprises an inlet end, and extends to an outlet end. At least one splitter is positioned within the duct and between the inlet and the outlet end to sub-divide an interior of the duct into plural flow paths. ... | 02/14/2012 |
| 8112184 | Auxiliary power unit with dual use of speed signals An auxiliary power unit has a speed sensor for sensing a speed of operation of the auxiliary power unit. The speed sensor sends a signal to an electronic control box. The electronic control box is operable to control the auxiliary power unit. A branch line is for co... | 02/07/2012 |
| 8111168 | Smoke detector with included flame barrier A smoke detector comprises a first housing to face an area in which to detect smoke, a second housing secured to the first housing, electronics to detect smoke within the area, and a flameproof barrier positioned between the first and second housings. ... | 02/07/2012 |
| 8110027 | Heated blanket for air separation module An air separation module and blanket has an air separation module having an air inlet, an oxygen outlet and a nitrogen outlet. At least one tank has air separation elements for separating oxygen from air, and delivers the separated oxygen to the oxygen outlet, and d... | 02/07/2012 |
| 8109101 | Heating, ventilation, air conditioning and refrigeration system with multi-zone monitoring and diagnostics A multi-zone HVAC&R system has its control programmed to provide diagnostic testing of air handling components and refrigerant components associated with each climate controlled zone in sequence. The control changes the original position of the corresponding compone... | 02/07/2012 |
| 8109099 | Flow sleeve with tabbed direct combustion liner cooling air A combustion duct for a gas turbine engine has a combustion liner to receive products of combustion, and deliver the products of combustion downstream toward a turbine rotor. An outer housing is positioned radially outwardly of the combustion liner. A flow sleeve is... | 02/07/2012 |
| 8105133 | Airfoil mask, airfoil and mask system A mask for performing high speed media finishing on airfoils includes a thicker portion and a thinner portion. The thicker portion is spaced further from an edge that will become a leading edge in the final airfoil than the thinner portion. The media is redirected b... | 01/31/2012 |
| 8104736 | Gas turbine engine auxiliary component mount A mount system for an auxiliary component includes two side brackets and a top bracket for rigidly attaching an auxiliary component to an engine casing. Each side bracket defines mount segments, a deformable member and two retainer members between the mount segment.... | 01/31/2012 |
| 8096796 | Temporary self-lubricating coating for scroll compressor A sealed compressor is provided with a spray lubricant that will provide lubricant at various bearing surfaces during initial start-up of the compressor. The lubricant will wear away quickly after initial run-in, but liquid lubricant will be provided by that time. | 01/17/2012 |
| D652479 | Device for the distribution of liquids | 01/17/2012 |
| 8092169 | Integrated inlet fan case A fan section of a gas turbine engine includes nacelle inlet and a fan containment case that are integrally formed together as a single-piece component. ... | 01/10/2012 |
| 8089179 | Hybrid aircraft electrical architecture with both variable and constant frequency generators An electrical generation system utilizes a variable frequency generator operating in combination with a constant frequency generator. Also disclosed and claimed are an aircraft electrical architecture, and a gas turbine engine incorporating the above electrical gene... | 01/03/2012 |
| 8088260 | Puck for cathodic arc coating with continuous groove to control arc A puck for providing a coating material in a cathodic arc coating system has a generally uniform depression formed at the outer periphery. The depression ensures that an arc from the coating apparatus will move uniformly about the outer periphery of the puck, such t... | 01/03/2012 |
| 8087913 | Gear pump with unequal gear teeth on drive and driven gear A gear pump comprises a first gear to be connected to a source of drive, and having a first plurality of gear teeth. A second gear has a second plurality of teeth engaged with the first gear teeth. The first gear teeth contact the second gear's teeth on a contact fa... | 01/03/2012 |
| 8087447 | Method for checking wall thickness of hollow core airfoil A molding technique is utilized to form the cooling channels in an airfoil for a gas turbine engine. The cooling channels are formed by lost core mold cores, which are leached away after metal has been molded around them. At least one of the mold cores is provided w... | 01/03/2012 |
| 8085003 | Voltage regulated permanent magnet generator A single phase AC generator uses a rotor contained within a stator. The stator has an armature winding and a control winding which is capable of having its magnetic permeability adjusted, thereby limiting the output voltage of the armature winding. The stator additi... | 12/27/2011 |
| 8084902 | End plates for high speed generator applications An end plate for a generator includes an end plate generally cylindrical and having a central bore to receive a rotor shaft. The end plate has a radially inner boss and a radially outer boss. The radially outer boss is positioned radially outwardly of windings in a ... | 12/27/2011 |
| 8083236 | Staggered seal assembly An improved staggered seal assembly uses a static element and a rotating element to create a seal. The static element surrounds the rotating element and has at least one fin. The rotating element has at least one long fin and a set of shorter fins. A third component... | 12/27/2011 |
