Did You Know...
...that Charles Goodyear performed some of his experiments on rubber while in debtor's prison? He was there so often he referred to it as his "hotel". Chronically in debt because of poor business sense and ill health, Goodyear depended on the generosity of friends and family. Even after he unlocked the secret to vulcanizing rubber, he was unable to improve his financial situation. When he died, his estate was $200,000 in debt.
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| Number | Title | Issue Date |
| 8100226 | Porous nonwoven scrims in acoustical panels An acoustical building panel and method of manufacturing it are disclosed. Embodiments of the panel include a porous nonwoven scrim, a coating deposited on the scrim, a base mat, and an adhesive deposited on either the base mat or the scrim in a discrete form such a... | 01/24/2012 |
| 8079443 | Aircraft trim panel with integrated adjustable acoustic properties A trim panel for an aircraft interior includes a first sound attenuating layer, a structural layer and a second sound attenuating layer. The structural layer is coupled to the exterior sound attenuating layer, and has an exterior side and an opposite interior side. ... | 12/20/2011 |
| 8066098 | Acoustic septum cap honeycomb An acoustic structure that includes a honeycomb having cells in which septum caps are located. The septum caps are formed from sheets of acoustic material and include a resonator portion and a flange portion. The flange portion has an anchoring surface that provides... | 11/29/2011 |
| 8047329 | System and method for noise suppression Systems and methods for noise suppression are disclosed herein. In one embodiment, an acoustic structure has a core that includes a plurality of cells. Each of the plurality of cells includes one or more engaging structures for positioning a septum relative to the c... | 11/01/2011 |
| 8037967 | Acoustic treatment device for turbine and combustion noises An acoustic treatment device for an internal primary ejection duct from a turbojet pod, including an upstream zone and a downstream zone relative to an airflow direction in the primary ejection duct, the upstream and downstream zones being located on each side of a ... | 10/18/2011 |
| 7971684 | Acoustic panel A panel for acoustic treatment connected to a surface of an aircraft, includes—from the outside to the inside—an acoustically resistive porous layer, at least one alveolar structure, and a reflective or impermeable layer, whereby the acoustically resistive porou... | 07/05/2011 |
| 7967108 | Acoustic liners An acoustic assembly for a fan casing of a turbofan engine is made up from acoustic liner panel components which each comprise a body and a backing sheet. The body is an integral injection moulding that generally includes an acoustic structure, a perforated sheet an... | 06/28/2011 |
| 7921966 | Linear acoustic liner A linear acoustic liner for an aircraft includes a cellular core having a first surface and an opposed second surface. A substantially imperforate back skin covers the first surface, and a perforate face skin covers the second surface of the core. The perforate face... | 04/12/2011 |
| 7854298 | Acoustic septum cap honeycomb An acoustic structure that includes a honeycomb having cells in which septum caps are located. The septum caps are formed from sheets of acoustic material and include a resonator portion and a flange portion. The flange portion has an anchoring surface that provides... | 12/21/2010 |
| 7819224 | Assembly for reducing noise in turbofan engines An assembly is provided for reducing the noise that is generated in the heating gas zone by turbofan engines. The assembly consists of an acoustically absorbent cladding in the heating gas flow channel of the turbofan engine. The cladding includes a plurality of nei... | 10/26/2010 |
| 7779965 | Absorbent structure for attenuating noise particular by a rotor-generator noise, and a rotor duct including such a structure An absorbent structure for reducing the propagation of soundwaves emitted by noisy devices such as rotors or motors, the structure includes a rigid partition (1), at least one porous wall (4), and separator elements (2) for placing the porous wa... | 08/24/2010 |
| 7743884 | Sandwich panel for sound absorption An aircraft cabin panel for sound absorption, with a sandwich construction, comprising a core layer that comprises a plurality of tube-like or honeycomb-like cells that extend in an open manner across the thickness of the core layer and that are separated from each ... | 06/29/2010 |
| 7661510 | Method for the manufacture of a light-weight sheet The invention is directed to a method for manufacturing a sandwich like constructed light weight sheet with sound absorption characteristics, by which an acoustically absorbing cover layer, a substantially grid shape configured first intermediate layer and a bottom ... | 02/16/2010 |
| 7540354 | Micro-perforated acoustic liner An example liner assembly includes a backing plate that supports a cellular structure covered by a perforated face sheet including a plurality of openings. Each of the plurality of openings is of a size determined to provide desired acoustic performance. ... | 06/02/2009 |
| 7520369 | Soundproofing panel with beads, and a method of manufacture A soundproofing panel having a core sandwiched between a solid wall and a porous wall. The core being connected to the walls and having partitions extending in the thickness direction between the two walls so as to form cells. Each cell containing at least one sound... | 04/21/2009 |
| 7510052 | Acoustic septum cap honeycomb An acoustic structure that includes a honeycomb having cells in which septum caps are located. The septum caps are formed from sheets of acoustic material and include a resonator portion and a flange portion. The flange portion has an anchoring surface that provides... | 03/31/2009 |
| 7484593 | Acoustic structure and method of manufacturing thereof There is provided an acoustic structure and a method of manufacturing such acoustic structure. The acoustic structure comprises at least one uncured facesheet ply defining a plurality of perforations, an adhesive that includes a corresponding plurality of perforatio... | 02/03/2009 |
| 7484592 | Sound attenuation panel comprising a resistive layer with reinforced structural component A sound attenuation panel includes a resistive layer with a reinforced structural component, comprising at least a honeycomb structure (1) flanked, on one side, with a resistive layer (2) consisting of at least a porous layer (2b) and of ... | 02/03/2009 |
| 7434659 | Acoustic septum cap honeycomb An acoustic structure that includes a honeycomb having cells in which septum caps are located. The septum caps are formed from sheets of acoustic material and include a resonator portion and a flange portion. The flange portion has an anchoring surface that provides... | 10/14/2008 |
| 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 |
| 7428948 | Hybrid amplitude-phase grating diffusers A room acoustic diffuser exploits interference, by reflecting waves out-of-phase with the specular energy, making it possible to diminish specular energy. This is achieved by using a diffuser based on a ternary sequence, which nominally has reflection coefficients o... | 09/30/2008 |
| 7419031 | Integrally damped composite aircraft floor panels In accordance with the present invention an aircraft floor panel is provided comprising a honeycomb core element having an upper core surface, a lower core surface, and a core thickness. An upper face sheet assembly is mounted to and seals the upper core surface and... | 09/02/2008 |
| 7413053 | Acoustic resonator with impingement cooling tubes Aspects of the invention are directed to an acoustic resonator with improved impingement cooling effectiveness. The resonator includes a plate with an inside face and an outside face. A plurality of passages extend through the plate. The resonator includes a side wa... | 08/19/2008 |
| 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 |
| 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 |
| 7337874 | Lightweight speaker enclosure A speaker enclosure having a substantially seamless rigid outer skin, a middle sound absorbing layer, and a substantially seamless inner skin results in a lightweight speaker having sound absorbing characteristics. The speaker enclosure is comprised of two basic par... | 03/04/2008 |
| 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 |
| 7337876 | Suction apparatus with noise reduction means A suction apparatus is provided with noise reduction means in one or more airflow passages for reducing noise emission from an airflow generator or the like, wherein at least one airflow passage is provided with at least one indentation with a predetermined depth ex... | 03/04/2008 |
| 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 |
| 7322441 | Extended bandwidth folded well diffusor An extended bandwidth folded well diffusor extends the diffusion bandwidth of a shallow, asymmetric diffusor by incorporating maximum-depth, folded L-shaped, half-width wells on both ends (sides) of a diffusor, thus providing increased maximum well depth without inc... | 01/29/2008 |
| 7320222 | Burner, method for operating a burner and gas turbine This invention relates to a burner, especially a gas turbine burner, wherein a Helmholtz resonator downstream of a fuel inlet position in directly linked with a burner channel. In this manner, combustion oscillations do not arrive at the fuel inlet position, thereby... | 01/22/2008 |
| 7320455 | Instrumented platform for vibration-sensitive equipment A platform that includes a vibration sensor located within an inner core of a table. The table may have a first plate that supports a vibration-sensitive payload. The first plate may be separated from a second plate by the inner core. The sensor can be located withi... | 01/22/2008 |
| 7314114 | Flat panel diffuser A device including a membrane having first and second faces; a first substrate disposed on the first face of the membrane and having (i) a plurality of first absorptive regions and (ii) a plurality of first reflective regions formed as wells in a face of the first s... | 01/01/2008 |
| 7314113 | Acoustic absorbers for use with computer cabinet fans and other cooling systems Systems and methods for absorbing acoustic noise generated by computer cabinet cooling fans are described herein. In one embodiment, an acoustic absorber for use with a fan carried by a computer cabinet in a room includes a first acoustic panel spaced apart from a s... | 01/01/2008 |
| 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 |
| 7297390 | Structural polymer core assembly, method of manufacture and method of use A composite structure, and method of manufacturing it, having a specified width, length, and height defining a top and bottom the composite structure. The composite structure includes a three dimensional structural core constructed of a polymer with a first series o... | 11/20/2007 |
| 7284726 | Self extinguishing composite primary structure A helicopter with one or more components formed from a self extinguishing composite primary structure material to provide increased passenger safety. The self extinguishing composite primary structure material has a core formed from a fire retardant material, which ... | 10/23/2007 |
| 7279214 | Floor covering having a strong noise-reducing properties A floor covering characterized as having a strong noise-reducing properties for the interior trim of means of transport. The floor covering has, on the passenger side, a textile or non-textile surface, acoustically coupled through at least one microperforated sheet ... | 10/09/2007 |
| 7276839 | Bondable fluoropolymer film as a water block/acoustic window for environmentally isolating acoustic devices A combination transducer and water-blocking film for acoustic signaling through ambient water. The water-blocking film has an etched fluoropolymer film and adjacent bonding film interposed between the transducer and the water. Potting material extends adjacent to an... | 10/02/2007 |
| 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 |
