Bizarre Patents
User-operated amusement apparatus for kicking the user's buttocks
An apparatus including a user-operated and controlled apparatus for self-infliction of repetitive blows to the user's buttocks by a plurality of elongated arms bearing flexible extensions that rotate under the user's control.
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| Number | Title | Issue Date |
| 7918310 | Noise attenuation device for reducing jet engine noise during testing A noise attenuation device for testing a jet engine. ... | 04/05/2011 |
| 7383918 | Noise suppressor exhaust sound attenuation overhaul and repair kit Repairs and overhaul procedures are scheduled and implemented with a surprisingly low frequency. Repair and overhaul procedures are implemented wherein conventional noise suppression exhaust sound attenuation systems receive structural and functional enhancements fo... | 06/10/2008 |
| 7207213 | Device for stabilizing the engine inlet flow in static tests of engines The invention relates to an apparatus for the stabilization of the engine inlet flow in engine static tests. It consists of an arrangement with an air-permeable element (4), which is arranged in an end position situated close to an engine housing (2) a... | 04/24/2007 |
| 7201011 | Integrated noise and heat management system An integrated noise and heat management system for the management of noise and heat around a heat and noise source is described. The system includes an enclosure for surrounding the heat and noise source, the enclosure having a double wall structure defining an air ... | 04/10/2007 |
| 6920959 | Inlet and outlet duct units for air supply fan Duct units for delivery of air to an air supply fan and for connecting this fan to an air heater unit are disclosed. The duct unit for delivering air in one version has a narrow first section, a second, transition-type section and a wide sound attenuating, third sec... | 07/26/2005 |
| 6910370 | Apparatus and method for preventing inlet vortex A method of operating a gas turbine engine for testing, comprising: providing an aircraft on a tarmac, the aircraft having a gas turbine engine with an inlet; selecting a power setting for the engine that is capable of producing a vortex between the inlet and the ta... | 06/28/2005 |
| 6539702 | Gas turbine exhaust passage and damper system for same having a non-enclosed porous peripheral wall A gas turbine exhaust passage is realized which may suppress the radiation of strong ultra low frequency noise to the outside without amplifying the turbulence of an high speed exhaust gas flow rate or a pressure pulsation generated in a gas turbine. At l... | 04/01/2003 |
| 6092621 | Methods and apparatus for suppressing engine test cell howl Methods and apparatus for suppressing cell howl with negligible impact on engine test conditions are described. The apparatus, in an exemplary embodiment includes a flow distorter configured to be positioned close to a nozzle exit of an engine nozzle, and... | 07/25/2000 |
| 6016888 | Stable flow enhancements for ground runup enclosure Enchancements to the side walls of a ground runup (jet aircraft engine testing) facility, the enhancements comprising horizontal vents in the side walls, rolled or semicylindrical tops of the side walls and sloped front ends to the side walls, the combina... | 01/25/2000 |
| 5856640 | Sound suppression cushion An element, pillow or cushion for the reduction or elimination of noise in buildings, from highways, from industrial machinery, and from airports comprising a sound transparent covering and a sound absorbent interior, the element or pillow being used sing... | 01/05/1999 |
| 5715672 | Exhaust silencer panel for gas turbine An improved silencer panel construction for use in the exhaust gas stream of power generation equipment is described. The silencer panel has an outer periphery of U-shaped channel. Perforated webbing is attached within the outer periphery to strengthen th... | 02/10/1998 |
| 5650599 | Noise cancellation method and apparatus A method and apparatus for reducing noise originating in a flowing stream of gases in which the noise is progressively absorbed from the flowing stream to provide noise of reduced intensity relative to noise intensity at the upstream end of the stream, an... | 07/22/1997 |
| 5422443 | Rocket exhaust disrupter shapes Apparatus for reducing the pressure and thermal impingement effects of a supersonic exhaust gas plume emanating from a rocket motor nozzle. A pair of wedge-shaped pieces comprise a disrupter positioned on opposite sides of the central longitudinal axis of... | 06/06/1995 |
| 5377534 | Ground test installation for the jet engines of an airliner The present invention relates to a ground test installation for the jet engines (5A, 5B) of an airliner (2) equipped with at least two jet engines linked to the wings of the aircraft, comprising, for each jet engine (5A, 5B), a silencer (8A, 8B) having a ... | 01/03/1995 |
| 5127609 | Jet blast deflector fence A jet blast deflector fence designed to present a cleaner, simpler, aesthetically pleasing appearance, the deflector fence comprised of simple frames which include only two structural members, a curved rib channel member securedly and hingedly attached to... | 07/07/1992 |
| 4987970 | Device for collecting the exhaust gas jet of an aircraft reactor and a testing installation for aircraft reactors The invention provides a device for collecting the exhaust gas jet of an aircraft reactor with orientable propulsion nozzle or with a gas jet orientable with respect to the longitudinal axis of said reactor, during ground testing of the latter, as well as... | 01/29/1991 |
| 4958700 | Protective facility for suppressing noise produced at high gas flows by engines installed on aircraft A protective facility for suppressing jet aircraft noise which has a primarily horseshoe shape for surrounding a jet aircraft. Within the horseshoe and situated to the rear of any plane within the facility is found a metal, mesh lattice which redirects ex... | 09/25/1990 |
| 4940392 | Jet pump with stabilized mixing of primary and secondary flows A jet pump comprises a nozzle (1) for a high speed primary flow, a mixing tube (2) into which the primary flow is directed by the nozzle (1), and an inlet (3) to the mixing tube (2) for a secondary flow, the inlet (3) surrounding the primary flow nozzle (... | 07/10/1990 |
| 4753319 | Exhaust silencer for high-power gas turbines Disclosed is an exhaust silencer for high-power gas turbines having an outer case made from steel plate formed into a Greek fret pattern, and proved with inner soundproofing panels of which are covered with standardized, insulating-soundproofing compound ... | 06/28/1988 |
| 4747467 | Turbine engine noise suppression apparatus and methods A compact turbine engine exhaust gas noise suppressor has a housing having a first chamber, a second chamber having an outlet and communicating with the first chamber through a transfer passage, and a third chamber communicating with the first chamber thr... | 05/31/1988 |
| 4733751 | Rocket exhaust disrupter An apparatus for reducing the pressure and thermal impingement effects of a supersonic exhaust gas plume emanating from a rocket motor nozzle. A disrupter body positioned within the exhaust plume along the central longitudinal axis thereof disrupts and di... | 03/29/1988 |
| 4573551 | Exhaust gas duct for gas turbines Exhaust gas duct for gas turbines, including an axial discharge housing, a deflection piece connected downstream of the axial discharge housing in exhaust gas flow direction, the deflection piece having a substantially horizontal first diffusor section an... | 03/04/1986 |
| 4505483 | Inflatable seal for opening in building wall An inflatable seal for sealing the open area between the perimeter of an opening in a wall of a building and the body of a vehicle received in the opening. The seal comprises an inflatable member which is mounted on the wall in the opening and a blower as... | 03/19/1985 |
| 4471924 | Blast deflecting fence A blast deflecting fence having separate upper and lower deflecting surfaces which overlap. The lower deflecting surface is curved so that a jet blast directed towards it is deflected upwards. The upper deflecting surface is positioned so that lower porti... | 09/18/1984 |
| 4169517 | Device serving the noise control of sound energy radiated from the jet engines of an aircraft operated on the ground in stationary position A device for shielding the sound energy radiated from the jet engines of an aircraft formed from two panels being in horizontal and vertical longitudinal view arranged concavely in a clamshell type.... | 10/02/1979 |
| 4168763 | Sound suppressor apparatus A ring of tubes extends inwardly from a noise suppressor housing wall sufficiently far to impinge upon the periphery of the high velocity core of a supersonic jet exhaust to disrupt the core and reduce the sound power generated. A large volume of outside ... | 09/25/1979 |
| 4128769 | Eductor muffler A gas turbine engine exhaust duct of combination circular and rectangular configuration, and accompanying muffler which provides cooling and silencing of exhaust flow from the gas turbine engine. The arrangement utilizes minimum space without sacrifice of... | 12/05/1978 |
| 4122912 | Dry cooled jet aircraft runup noise suppression system A stationary jet exhaust noise suppressor has an elongate housing contain a longitudinal tunnel. The hot exhaust from a jet engine blows through the tunnel and is deflected upwards at the tunnel's end. A number of resonant chambers are located along the ... | 10/31/1978 |
