Patent application number | Description | Published |
20090140580 | AC voltage conditioner - An AC voltage conditioner to be connected between a source of AC line voltage or non-linear voltage and one or more AC-powered devices (e.g., audio/video, medical and scientific equipment) to improve the performance of the devices by reducing the effects of interference and distortion often caused by an AC electromagnetic field or radio frequency interference in the vicinity of the devices. A pair of AC current conducting plates are respectively electrically connected between positive and negative output terminals of the AC line voltage source and positive and negative input terminals of each AC-powered device. The pair of AC current conducting plates are interposed between and separated from three DC current carrying plates. The DC current carrying plates are connected in electrical parallel with one another between positive and negative output terminals of a DC voltage generator. DC currents flowing through the DC current carrying plates from the DC voltage generator cause respective DC electromagnetic fields to surround the AC current carrying plates. Therefore, the AC currents flowing through the AC current carrying plates of the AC voltage conditioner will pass through the DC electromagnetic fields ahead of each AC-powered device. | 06-04-2009 |
20110170720 | Acoustic energy control system for a room - A mechanical acoustic energy control system to be located in a room in which one or more audio speakers are also located so that the audio output of the speakers can be distributed throughout the room to enable a listener in the room to be surrounded by sound. A master acoustic resonator attached to the front wall of the room is adapted to vibrate and thereby produce acoustic waves corresponding to the acoustic energy generated by the speakers. A low frequency (e.g., bass) acoustic resonator sits on the floor of the room below the master acoustic resonator. The low frequency acoustic resonator is adapted to vibrate to reflect low frequency acoustic waves produced by the speakers and the master acoustic resonator. A satellite acoustic resonator is located on each of the back and opposing side walls of the room. The satellite acoustic resonators are adapted to vibrate in response to the acoustic waves reflected thereto by the speakers, the master acoustic resonator, and the low frequency acoustic resonator. The vibration of the satellite acoustic resonators controls the dispersion pattern of acoustic waves in the room so that the listener hears a richer, fuller and more natural sound. | 07-14-2011 |
20150104040 | HIGH FREQUENCY ENERGY CONVERTER - A high frequency energy converter which has application as an acoustic actuator for converting incoming high frequency energy into outgoing harmonized high frequency mechanical (e.g., sound) and electromagnetic waves. The energy converter is adapted to improve the quality of sound heard by a listener by reducing random and spurious harmonics that are introduced by the environment in which the listener is located. The energy converter includes an outer body and a reactive crystalline material (e.g., quartz) lying at the bottom of the outer body that is responsive to the incoming high frequency energy. A dispersion horn is located at the top of the outer body to be seated upon the crystalline material. The dispersion horn has a throat extending therethrough so that both incoming high frequency energy and outgoing high frequency mechanical and electromagnetic waves are transmitted through the throat of the horn in opposite directions. | 04-16-2015 |
Patent application number | Description | Published |
20090142182 | Gas Turbine Engines and Related Systems Involving Offset Turbine Frame Struts - Gas turbine engines and related systems involving offset hub struts are provided. In this regard, a representative bearing assembly for a gas turbine engine includes: a bearing operative to support a rotatable shaft; an annular hub positioned about the bearing; and an annular array of struts extending radially outwardly from the hub, at least two of the struts being positioned in different planes, the planes being oriented transversely with respect to the rotatable shaft. The method of assembling the struts by mounting first and second pluralities of struts, each plurality in a common plane, between the hub and the turbine exhaust case, with the second plurality of struts longitudinally offset from the first plurality of struts. | 06-04-2009 |
20120141294 | GAS TURBINE ROTOR CONTAINMENT - A gas turbine engine has a spool including compressor and turbine rotors connected by a first shaft. The first shaft extends concentrically around a second shaft. The first shaft forward end has a portion with an inner diameter of close tolerance with the second shaft. The second shaft has a region of enlarged diameter located axially aft of the compressor rotor but axially forward of the forward end of the first shaft. The region of enlarged diameter has a diameter greater than the inner diameter of the forward end portion of the first shaft to cause the region of enlarged diameter of the second shaft to engage the first shaft in interference in the event that the second shaft is moved axially aft relative to the first shaft more than a pre-selected axial distance. | 06-07-2012 |
20130224010 | TURBINE FRAME FAIRING FOR A GAS TURBINE ENGINE - A static structure of a gas turbine engine includes a multiple of airfoil segments and at least one structural reinforcement ring mounted to the multiple of airfoil segments. | 08-29-2013 |
20150107223 | HIGH DURABILITY TURBINE EXHAUST CASE - A turbine exhaust case has an outer housing to be secured within a gas turbine engine and a central hub. Struts extend between the outer housing and the central hub. The struts are formed at least in part of a first material. The central hub is formed at least in part of a second material. | 04-23-2015 |
20150132110 | HIGH DURABILITY TURBINE EXHAUST CASE - A turbine exhaust case has an outer housing to be secured within a gas turbine engine and a central hub. Struts extend between the outer housing and the central hub. The struts are formed at least in part of a first material. The central hub is formed at least in part of a second material. | 05-14-2015 |
20150204212 | HIGH DURABILITY TURBINE EXHAUST CASE - A turbine exhaust case has an outer housing to be secured within a gas turbine engine and a central hub. Struts extend between the outer housing and the central hub. The struts are formed at least in part of a first material. The central hub is formed at least in part of a second material. | 07-23-2015 |
Patent application number | Description | Published |
20080284219 | VEHICLE HEADREST COVER - A vehicle headrest cover for covering a vehicle headrest having a display mounted therein includes a material designed to correspond with the shape and dimensions of the vehicle headrest and fit over the vehicle headrest for covering the vehicle headrest. The material has a cut-out in a face thereof which corresponds to the position of the display and also includes a zipper mechanism located on the material of the headrest cover which allows the material of the vehicle headrest cover to be zipped up to cover the vehicle headrest with the vehicle headrest cover or unzipped for removing the headrest cover from the vehicle headrest. | 11-20-2008 |
20080285962 | Vehicle Headrest Cover - A vehicle headrest cover for covering a vehicle headrest having a display mounted therein includes a material designed to correspond with the shape and dimensions of the vehicle headrest and fit over the vehicle headrest for covering the vehicle headrest. The material has a cut-out in a face thereof which corresponds to the position of the display. | 11-20-2008 |
20090013357 | Seat back entertainment system - A seat back entertainment system includes a seat panel connected to a frame of a vehicle seat. A video unit provides a video signal. A display device is mounted to the seat panel. The display device displays the video signal provided by the video unit. One or more compartments formed in the seat panel. | 01-08-2009 |
20090253508 | TWO-SIDED ELECTRONIC GAME AND REMOTE CONTROLLER - A remote control device, including: a housing having first and second elongated sides opposite each other, the first side including a plurality of user-operable switches for controlling a display device, and the second side including a plurality of user-operable switches for enabling a user to play a video game on the display device. | 10-08-2009 |