Famous Patents
The first commercial microwave oven was nearly 6 feet tall and weighed in at 750 pounds.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 8172037 | Coating for acoustic treatment that integrates the function of hot-air treatment of frost The invention relates to a coating for acoustic treatment at the surface of an aircraft, in particular at the leading edge such as the air intake of an aircraft nacelle, said coating including an acoustically resistive layer (28), at least one cellular struct... | 05/08/2012 |
| 8066096 | Inlet silencer An inlet silencer for an air inlet in a housing, which housing contains a source of high frequency noise radiated by an air intake for the source of high frequency noise, comprises: a plenum that extends longitudinally within the housing that couples the air inlet i... | 11/29/2011 |
| 8047326 | Method for making an acoustic absorption panel in particular for the nacelle of an aircraft engine The invention relates to a method for making an acoustic absorption panel in particular for the nacelle of an aircraft engine, the panel being of the type comprising a cellular core covered on one side with a so-called outer air-permissive skin and on the other side... | 11/01/2011 |
| 8033358 | Noise controlled turbine engine with aircraft engine adaptive noise control tubes An aircraft turbine engine with a takeoff fan speed and a landing fan speed, the aircraft engine includes a fan duct with a HQ (Herschel-Quincke) acoustic control noise reduction tube. The acoustic control noise reduction tube contains a movable frequency tuner obst... | 10/11/2011 |
| 7967105 | Aero-acoustic aviation engine inlet for aggressive noise abatement An aero-acoustic aviation engine inlet with a single air blowing slot or multiple air blowing slots flows air over one or more segments of inlet acoustic lining surfaces at speeds that are higher than the inlet mean air flow speed, for aggressive inlet noise abateme... | 06/28/2011 |
| 7963362 | Acoustic panel having a variable acoustic characteristic An acoustic panel includes a reflective layer, at least one alveolar structure, and an acoustically resistive structure forming an aerodynamic surface of an aircraft on the surface of which at least one acoustic wave propagates along an axis of propagation (24 | 06/21/2011 |
| 7938224 | Coating for acoustic treatment integrating the function of frost treatment with hot air A coating for acoustic treatment relative to an aircraft's surface, in particular a leading edge such as an air intake of an aircraft nacelle, includes an acoustically resistive layer, at least one alveolar structure (30), and a reflective layer. The alveolar... | 05/10/2011 |
| 7870929 | Engine assembly, acoustical liner and associated method of fabrication An engine assembly, an acoustical liner and an associated fabrication method are provided to address fan blade flutter and fan noise control simultaneously within the same liner area. Fan blade flutter is therefore controlled without necessarily increasing the weigh... | 01/18/2011 |
| 7861823 | Duct for reducing shock related noise A duct 26 has circumferentially distributed features capable of scattering acoustic energy associated with fluid dynamic shocks 34 extending in a shock orientation direction D. Each feature is oriented, over at least a portion of its length, substantia... | 01/04/2011 |
| 7503425 | Integrated inlet attachment An acoustic panel for integration in a nacelle of an aircraft engine assembly for absorbing noise generated by an engine or a fan assembly of the aircraft engine assembly. The acoustic panel comprises a generally annular section integrated into or attached to an inn... | 03/17/2009 |
| 7431126 | Support means for an acoustic liner used in an auxiliary power unit exhaust muffler The present invention provides support means for an acoustic liner in an APU exhaust system, where the acoustic liner has a tubular sidewall with an outer surface, a first longitudinal edge, a second longitudinal edge, and an axial gap formed between the first and t... | 10/07/2008 |
| 7431125 | Composite muffler for use with airborne auxiliary power unit The present invention provides a composite muffler for use with an auxiliary power unit. The composite muffler comprises a composite outer can, an annular baffle, an acoustic liner, and a thermal barrier. The composite outer can is disposed substantially symmetrical... | 10/07/2008 |
| 7401682 | Architecture for an acoustic liner An acoustic liner 20 includes a remote panel 26, a perforated proximate panel 22 transversely spaced from the remote panel and one or more partitions 32 spanning across the space between the panels. At least one baffle 44 cooperate... | 07/22/2008 |
| 7350619 | Auxiliary power unit exhaust duct with muffler incorporating an externally replaceable acoustic liner Methods and apparatus are provided for an exhaust duct having an externally replaceable acoustic liner. The exhaust duct includes a forward section that is configured to be axially coupled with a bulkhead collar on the aircraft, a body section that is coupled to the... | 04/01/2008 |
| 7338250 | Gas turbine engine blade containment assembly A gas turbine engine rotor blade containment assembly (38) comprises a containment casing (40) and the containment casing (40) has a plurality of axially spaced ribs (66). The ribs (66) extend circumferentially and radially inwardl... | 03/04/2008 |
| 7337875 | High admittance acoustic liner A cooled acoustic liner useful in a fluid handling duct includes a resonator chamber 52 with a neck 56, a face sheet 86, and a coolant plenum 80 residing between the face sheet and the chamber. Coolant bypasses the resonator chamber, rath... | 03/04/2008 |
| 7334393 | Aircraft engine in which there is a small clearance separating the fan cowls and the thrust inverter cowls Aircraft engine comprising a pod comprising, in sequence from front to back, an air inlet structure (6), fan cowls (7), thrust inverter cowls (8), and a nozzle (9), additional stiffening means are placed either in the air inlet structure ... | 02/26/2008 |
| 7334998 | Low-noise fan exit guide vanes Low-noise fan exit guide vanes are disclosed. According to the present invention a fan exit guide vane has an outer shell substantially shaped as an airfoil and defining an interior cavity. A porous portion of the outer shell allows communication between the fluctua... | 02/26/2008 |
| 7331421 | Flow restrictors for aircraft inlet acoustic treatments, and associated systems and methods Flow restrictors for aircraft inlet acoustic cores, and associated systems and methods are disclosed. A system in accordance with one embodiment of the invention includes an inlet flow surface having multiple openings, and an acoustic treatment positioned adjacent t... | 02/19/2008 |
| 7328771 | Zero acoustic splice fan case liner A liner assembly for a fan case includes a noise attenuation layer covered by a face sheet. The face sheet includes openings to the underlying noise attenuation layer. The face sheet and noise attenuation layer include acoustically transparent joints. The noise atte... | 02/12/2008 |
| 7311175 | Acoustic liner with bypass cooling An acoustic liner 20 includes a remote panel 26, a proximate panel 28 transversely spaced from the remote panel and a resonator chamber 34b residing between the panels. Perforations 38 penetrate the proximate panel in regist... | 12/25/2007 |
| 7296656 | Acoustic mechanical retainer A fan case assembly includes a noise attenuation layer that is covered by a face sheet. The face sheet includes a first plurality of openings. The noise attenuation layer includes a plurality of individual cells that are in communication with at least one of the fir... | 11/20/2007 |
| 7296655 | Duct liner acoustic splice A duct liner assembly includes a noise attenuation layer for absorbing noise energy that is covered by a face sheet. The face sheet includes a seam that is covered by an acoustically active splice. The acoustically active splice includes a plurality of acoustic regi... | 11/20/2007 |
| 7257894 | Process for making a panel with a protected acoustic damping layer A process for the production of a panel with a protective acoustic damping layer. The protective layer includes at least one porous core covered, on the one side, with a porous acoustic damping layer and on the other side with a total acoustic reflector. The porous ... | 08/21/2007 |
| 7255528 | Liner for a gas turbine engine casing A turbofan gas turbine engine (10) comprises a fan rotor (32) carrying a plurality of radially extending fan blades (34). A fan blade containment assembly (38) surrounds the fan blades (34) and the fan blade containment assembly ( | 08/14/2007 |
| 7188703 | Device for establishing noise in a motor vehicle In a device for establishing noise in a motor vehicle, including a housing having an inlet space, which is in communication via an inlet line with a gas-carrying part of an internal combustion engine arranged in the motor vehicle, and an outlet space, which is acous... | 03/13/2007 |
| 7165368 | Insulation blanket with cut guidelines A blanket of fibrous building insulation is provided, for in situ cutting to correspond to spacings between studs or like building members between which the insulation is to be applied. The blanket includes a layer of fibrous insulation material and a facing materia... | 01/23/2007 |
| 7124856 | Acoustic liner for gas turbine engine A passive acoustic liner system (50) for attenuating a sound field comprising, in acoustic series, a mode-scattering segment (48) and a sound-absorbing segment (40), wherein the mode scattering segment (48) provides a reactance between âˆ... | 10/24/2006 |
| 7111601 | Air induction system having an environmentally resistant acoustic membrane An air induction system for inducting air into an engine of an automobile is disclosed. The air induction system has an air cleaner and an air inlet tube. The air cleaner is in fluid communication with the engine of the automobile for filtering intake air inducted i... | 09/26/2006 |
| 7104749 | Intake silencer for gas turbines A silencer (25a) for the attenuation of noise occurring in an intake airstream (10, 27) of a gas turbine (1–3) includes a device or devices (31, 32, 33, 34) for the introduction of water and/or steam into the intake airstream ( | 09/12/2006 |
| 7104750 | Fogging device for gas turbines A fogging device (26) for introducing water and/or vapor into an intake air flow (10, 27) of a gas turbine (1–3) includes a sound-absorbing device (31, 35). This device may in particular be designed in the form of Venturi tubes (31 | 09/12/2006 |
| 7055484 | Multiple frequency Helmholtz resonator The tunable resonator is coupled to the engine speed control such that the resonator is set to a different frequency range when the engine speed is changed. The frequency range is changed by opening and closing necks and/or changing the effective volume of the reson... | 06/06/2006 |
| 7047725 | Assembly and method for aircraft engine noise reduction An assembly useful in reducing aircraft engine noise such as turbofan engine noise comprises: (a) a core portion comprising at least one entrance end and at least one exit end for the passage of acoustic energy therethrough; (b) a first member having an exterior fac... | 05/23/2006 |
| 7033460 | Coke drum bottom throttling valve and system A coke drum bottom de-heading system having an internal shroud enclosure and a shroud end cap opened by a flange to a coke bottom de-heading valve capable of accepting the end of a gate valve upon actuation. Acting in coordination with the shroud enclosure to preven... | 04/25/2006 |
| 7018172 | Airfoil surface impedance modification for noise reduction in turbofan engines In accordance with the present invention, an aircraft engine is provided with a component which helps reduce the noise generated by the engine. The component has a first aerodynamic surface, a second aerodynamic surface, and a system for reducing noise without alter... | 03/28/2006 |
| 6935834 | Noise reduction conduit for static components in aircraft engines Noise reduction conduit for non rotary components of aircraft engines, subjected to a characteristic range of temperatures of a gas turbine engine, constituted by an annular structure composed of an aerodynamic wet wall (10a, 10b), perfor... | 08/30/2005 |
| 6920958 | Annular acoustic panel An aircraft engine assembly is provided that is adapted to reduce noise produced by an engine included in the engine assembly. The engine assembly includes a nacelle having an inlet section and a main section that is houses the engine and fan assembly associated wit... | 07/26/2005 |
| 6896099 | Aircraft engine pod with acoustic attenuation An internal duct of an aircraft engine pod may include a fan and a tubular air intake having a first acoustic attenuation internal tubular piece. The first acoustic attenuation internal tubular piece is acoustically homogeneous, is of the resonator type, and has no ... | 05/24/2005 |
| 6772857 | Acoustically resistive layer for an acoustical attenuation panel, panel using such a layer An acoustically resistive layer for an acoustic attenuation panel (22) forming a conduit in which there is an aerodynamic flow (18), adapted particularly for an aircraft turbo jet engine. The panel has at least one acoustically resistive layer (24 | 08/10/2004 |
| 6766639 | Acoustic-structural LPC splitter An acoustic-structural LPC splitter assembly which comprises a structural acoustic splitter through which are arranged a plurality of bleed exhaust ports, the acoustic splitter having a first and second end, an inner and outer surface, a front joint for securing the... | 07/27/2004 |
