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...When G.G. Hubbard learned of his future son-in-law's invention, he called it "only a toy." His daughter was engaged to a young man named Alexander Graham Bell.
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| Number | Title | Issue Date |
| 8182206 | Ring seals for gas sealing and vibration damping A connection device for connecting two turbine housings (1, 2) of a two-stage turbocharging system includes a male/female joint for joining the two turbine housings; a cylindrical ring seal (3) installed under compression inside the male/female joint f... | 05/22/2012 |
| 8177487 | Rotary machine balance weights In a one embodiment, a balance weight includes a base, a rotational axis extending from the base, and a circumference having opposite cam surfaces about the rotational axis. The opposite cam surfaces are at least partially angled toward one another in a direction aw... | 05/15/2012 |
| 8172511 | Radial compressor with blades decoupled and tuned at anti-nodes A gas turbine engine includes a radial compressor with first and second blades. The first and second blades have tuned leading edges that prevent natural frequencies from exciting at speeds within an expected operating speed range. ... | 05/08/2012 |
| 8172510 | Radial compressor of asymmetric cyclic sector with coupled blades tuned at anti-nodes A gas turbine engine includes a radial compressor having first and second blades. The first blade has a tuned leading edge that prevents either blade from exciting at a natural frequency at speeds within an expected operating speed range. ... | 05/08/2012 |
| 8167540 | System for reducing compressor noise A system for reducing compressor noise includes a rotor having a plurality of blades. The blades have a nominal geometry characterized by a blade parameter. At least some of the blades are mistuned, such that they differ from the nominal geometry by greater than a m... | 05/01/2012 |
| 8167541 | Vibration-absorbing device for blower motors Disclosed herein is a vibration-absorbing device for blower motors, which is provided between a blower motor and a motor housing surrounding the blower motor. The vibration-absorbing device includes a vibration-absorbing body, which may be spherical, and an engaging... | 05/01/2012 |
| 8162596 | Support device for high pressure pumps usable in or on the deck of a marine vessel An improved method and apparatus for supporting and adapting high pressure pumping apparatus for use on or in a marine vessel subject to direct dynamic motions imparted to the marine vessel without damaging the pumping apparatus to thereby extend the useful life of ... | 04/24/2012 |
| 8157507 | Damped stator assembly A stator assembly having an inner shroud and an outer shroud with a plurality of airfoils extending between the shrouds, and a vibration damping horn extending from one of the shrouds and aligned with the airfoil, the vibration damping horn having a higher stiffness... | 04/17/2012 |
| 8147182 | Ceiling fan with concentric stationary tube and power-down features A fan system comprises a hub, a plurality of fan blades, a drive system, and a stationary tube. The hub is configured to rotate. The fan blades are mounted to the hub. The drive system comprises a rotatable hollow output shaft. The hollow output shaft is in communic... | 04/03/2012 |
| 8142139 | Fan unit having an axial fan with improved noise damping Due to variations arising during manufacturing, axial fans often are slightly imbalanced, resulting in noise during operation, which is undesirable in many contexts, for example when the fan is used for ventilation purposes in a motor vehicle. A fan with improved vi... | 03/27/2012 |
| 8133010 | Turbine stator for aircraft turbine engine including a vibration damping device A turbine stator for an aircraft turbine engine is disclosed. The turbine stator includes a stator wall supporting a high pressure air injector fixed on the downstream side, and an annular abradable element support. The lower radial end of the element support is fix... | 03/13/2012 |
| 8133011 | Device for stiffening the stator of a turbomachine and application to aircraft engines The invention concerns a novel type of turbomachine. The stator of the turbomachine comprises a plurality of profiled members forming stiffeners arranged on the blade stage. The profiled members are distributed uniformly at periphery of the blade stage and individua... | 03/13/2012 |
| 8123467 | Fan device with a vibration attenuating structure A fan device with a vibration attenuating structure is disclosed. The fan device with a vibration attenuating structure comprises a fan and a frame covering the fan. The frame entirely covers the fan, and two opposing sides of the frame have an opening thereon. The ... | 02/28/2012 |
| 8123468 | Centrifugal fan A centrifugal fan used as a ventilating fan is provided which can increase a range of frequencies of noises in which noises can be suppressed and can adjust frequencies of noises at which noises can be suppressed. The centrifugal fan includes, in an outer casing, a ... | 02/28/2012 |
| 8118540 | Split ring for a rotary part of a turbomachine A split ring for mounting with elastic prestress in an annular groove of a rotary part of a turbomachine and having, in the free state, a diameter that is greater than the diameter of the groove, is remarkable in that, in the free state and without stress, the end p... | 02/21/2012 |
| 8113766 | Fan and fan frame thereof A fan includes an impeller and a fan frame. The fan frame has a main body and at least one sound absorber, wherein the main body has a passage for receiving the impeller, a plurality of flanges are disposed on a periphery of the main body, a recess is defined betwee... | 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 |
| 8105016 | Damping arrangement for guide vanes A damping arrangement for guide vanes, in particular for guide vanes of a gas turbine or an aircraft engine, is disclosed. Referring to this damping arrangement, the radially external ends of the guide vanes of a guide vane grid or a guide vane ring are mounted to a... | 01/31/2012 |
| 8100637 | Double suction type centrifugal fan A double inlet centrifugal fan includes an impeller and fan inlet port. The impeller has a main plate connected to the drive shaft in a fan casing, fan side plates, and a plurality of blades between the main plate and each of the fan side plates. The fan inlet port ... | 01/24/2012 |
| 8087881 | Damped stator assembly A stator assembly having an inner shroud and an outer shroud with a plurality of airfoils extending between the shrouds, and a vibration damping horn extending from one of the shrouds and aligned with the airfoil, the vibration damping horn having a higher stiffness... | 01/03/2012 |
| 8083470 | Fan and impeller thereof A fan includes a frame, a motor and an impeller. The motor is disposed on the frame and coupled to the impeller to drive the impeller to rotate. The impeller includes a hub, a plurality of blades and an air exhausting structure. The hub has an opening formed on a to... | 12/27/2011 |
| 8043049 | Air fan damping structure An air fan damping structure is installed on an air fan which has a fan frame. The fan frame has an air inlet, an air outlet and a housing space between them to hold a fan blade assembly. The damping structure includes a first buffer and a holding member located on ... | 10/25/2011 |
| 8033783 | Diagonal flow fan The present invention aims at providing a diagonal flow fan or a silencer for the diagonal flow fan, which have the same outer shape as a suction port and are compact, and can also obtain an effective sound absorbing effect of a moderate frequency range. In the diag... | 10/11/2011 |
| 8025477 | Plenum/plug fan assembly An aero acoustic fan assembly is provided and generally includes a fan wheel, a frame, and first and second air outlet diffusing structures. The fan wheel generally, and typically includes an axial air inlet delimited by an air inlet cone, an annular air outlet, a b... | 09/27/2011 |
| 8002519 | Blower and air conditioner outdoor unit with the blower A blower is provided with an axial flow impeller 7, a fan motor 8 positioned in a suction side of the axial flow impeller 7, and a motor stay 9 supporting the fan motor 8. The motor stay 9 is substantially formed to have a l... | 08/23/2011 |
| 7997857 | Particle vibration damper Numerous cavities exist in a turbocharger for reasons of construction. If such cavities are filled with particles, inexpensive particle vibration dampers can be realized. Moreover, advantages with regard to additional containment security result in the case of possi... | 08/16/2011 |
| 7993099 | Helicopter gas turbine engine with sound level lowered by ejector hush kitting A helicopter gas turbine engine having a combustion chamber, at least one turbine arranged downstream from the combustion chamber to receive combustion gases emitted by the latter and a nozzle is disclosed. The nozzle has one part forming a diffuser, connected downs... | 08/09/2011 |
| 7980814 | Wind turbine tower and a control system and method for altering the eigenfrequency of a wind turbine tower A wind turbine comprising a wind turbine rotor with at least one wind turbine blade, a wind turbine tower, such as a standard tubular steel tower, positioned on a foundation and connected to the wind turbine rotor through a wind turbine nacelle, and a control for es... | 07/19/2011 |
| 7980813 | Fan outlet guide vane shroud insert repair A method of repairing a turbine engine component that contains a series of lined apertures. The component is removed from the engine, and then at least one of the aperture liners is also removed. The area adjacent the aperture is machined to remove a portion of the ... | 07/19/2011 |
| 7942629 | Systems and methods involving wind turbine towers for power applications A system for determining wind turbine tower base torque loads including a controller configured to determine a torque load of a base of a tower of a wind turbine according to a computation of an effective height of the wind turbine multiplied by a wind force upon a ... | 05/17/2011 |
| 7938618 | Device for silencing a helicopter gas turbine engine and engine thus obtained In a helicopter gas turbine engine, lips (30, 32) defining a radial air intake (34) are connected along an opening (12a) of an engine compressor air supply passage (12). The air intake lips are at least partially formed by a sound ... | 05/10/2011 |
| 7896610 | Three-dimensionally vibration-preventing buffering mechanism A three-dimensionally vibration-preventing buffering mechanism is proposed, which is designed for use in conjunction with a dynamic module for the purpose of buffering the three dimensional vibrations of the dynamic module during operation, and which is characterize... | 03/01/2011 |
| 7887286 | Sector of a compressor guide vanes assembly or a sector of a turbomachine nozzle assembly A sector of a compressor guide vanes assembly or a sector of a turbomachine nozzle assembly. It comprises an inner ring sector (4), an outer ring sector (6) and a multitude of blades (8) connecting the inner ring sector (4) to the outer r... | 02/15/2011 |
| 7883312 | Centrifugal blower A centrifugal blower has: an impeller; and a casing that houses the impeller. The impeller has: a bottom plate; blades provided on a same circumference of the bottom plate; and a shroud that has the blades interposed between it and the bottom plate, disposed concent... | 02/08/2011 |
| 7837434 | Power tool A hand-guided power tool has a housing having a first housing part and a second housing part. A grip unit has at least one handle for guiding the power tool and forms the first housing part. A motor unit is arranged in the second housing part and has a drive motor. ... | 11/23/2010 |
| 7837435 | Stator damper shim A system and method for reducing vibration and wear to adjacent platform surfaces and mounting locations of a vane segment in a gas turbine engine is disclosed. The present invention seeks to improve the interaction between mating faces of adjacent gas turbine vane ... | 11/23/2010 |
| 7832981 | Stator vane having both chordwise and spanwise camber A support system for a cooling fan for a heat exchanger. A suspension system supports an inner hub inside an outer support structure. The inner hub or ring supports the fan and motor. The suspension system includes an array of spiral support arms, extending from the... | 11/16/2010 |
| 7832982 | Centrifugal fan A centrifugal fan comprises a casing (2) and an impeller (5) that is mounted in the casing (2) and turns about a defined axis of rotation (X). The casing (2) has an axial inlet opening, through which air is drawn in, and a tangential air ... | 11/16/2010 |
| 7819624 | Suspension system A suspension system for suspending an apparatus is disclosed. The suspension system includes at least one suspension element mountable between the apparatus and a support. The at least one suspension element includes a laminate material having at least one metal lay... | 10/26/2010 |
| 7806651 | Method for designing a low-pressure turbine of an aircraft engine, and low-pressure turbine A low-pressure turbine of a gas turbine is disclosed. The turbine comprises a number of stages arranged one behind the other in an axial manner in the flow-through direction of the turbine. Each stage is formed from a fixed vane ring having a number of vanes and fro... | 10/05/2010 |
