Patent application number | Description | Published |
20080199273 | Method to limit a creep of bolts and gaskets of bolted flanged connections - A method to limit or exclude operational creep of the bolts and gaskets of Bolted Flanged Connections (BFCs) is disclosed. The method consists in the use of bolts and gaskets manufactured from the same Shape Memory Alloys (SMAs) having temperature intervals of reverse martensitic phase transformation close to operational temperatures of the BFCs. These bolts and gaskets of the BFCs are shape-memorized to the compression (bolts) and “swelling” (gaskets) during (1) the formation of stress-induced martensite under temperature of martensite state of the SMAs while bolt preload application, or (2) during the formation of stress-induced martensite while loading-unloading previously stretched bolts and previously compressed gaskets under temperature of martensite state resulting in residual bolt elongations and residual gasket contraction followed by bolt preload application. Constrained shape recovery of initial length of the bolts and initial thickness of the gaskets under operational temperatures of the BFCs is accompanying by appearance of reactive shape-recovering stresses having direction inverse to the direction of operational creep of the bolts and gaskets that limits or excludes their operational creep. | 08-21-2008 |
20080267731 | Bolted flanged connection on a basis of shape memory effect and inverse flexion flange design - A Bolted Flanged Connection (BFC) includes “negative creep” bolts with cores manufactured from Shape Memory Alloy (SMA) and “negative creep” gasket manufactured from the same SMA. The gasket is shape-memorized to the “swelling”, and bolt cores are shape-memorized to the compression. Temperature interval of reverse martensitic phase transformation of SMA is close to operational temperature interval of the assembly. The constrained shape recovery of the gasket and bolt cores is combined with inverse flexion flange design that constitutes original type of BFC with feature to inhibit flange rotation and creep of bolts and gasket under conditions of a variety of operational temperatures and internal pressures. Presented type of BFC allows increasing significantly internal pressure and leak tightness providing safe and extended service life of pressure vessels and plant/piping systems used in aerospace, submarine shipbuilding, petroleum refining, petrochemicals, fossil fuel and nuclear power generation, and other industries. | 10-30-2008 |
20090134587 | High temperature negative creep gasket and manufacturing same - A negative creep gasket with corrugated core of high temperature Shape Memory Alloy (SMA) provides multiple leak-tight, automatic and continuous seal between the flanges of Bolted Flanged Connection (BFC) used in plant/piping systems that operate under critical conditions including a variety of high operating temperatures within the range of from 300° C. to 1120° C. The specific high operating temperature of the BFC is in the temperature interval of reverse martensitic phase transformation from martensite to austenite of the SMA from which gasket corrugated core is manufactured. The gasket corrugated core is shape-memorized to the “swelling” during gasket manufacturing and bolt preload force application, and a free gasket “swelling” due to shape recovery of initial configuration of the core is constrained by rigid flanges at high operating temperature of the BFC that leads to appearance of reactive shape-recovering stresses having direction inverse to the direction of operating creep of the gasket. The manufacturing of the high temperature negative creep gasket is disclosed. | 05-28-2009 |
Patent application number | Description | Published |
20090065637 | Buoyancy system using double-sorb controllers for engine fueling and airship attitude correction - A buoyancy system using double-sorb controllers for engine fueling and airship attitude control is disclosed. The buoyancy system is based on the use of a Liquefied Natural Gas (LNG) payload that assists in buoyancy control and provides simultaneously a fuel for natural gas engines that propel the airship. The airship attitude correction is achieved by changing the amount of buoyant gas such as methane that is enclosed in the airship's baffles located forward and aft in the airship, and to the starboard and port if necessary for active roll control. The airship attitude control is provided by absorption or desorption of the natural gas using two double-sorb controllers. One of two double-sorb controllers is mounted forward and the other is mounted aft in the airship, so the differential absorption/desorption of natural gas is used to control the pitch of the airship. Each double-sorb controller consists of a thermally insulated external container connected with the LNG payload and natural gas engines. The double-sorb controller includes two sorbs equipped with heaters and separated by vacuum space and thermally conductive shell. The first sorb is connected with the airship's baffle to absorb or desorb the natural gas enclosed in the baffle, and the second sorb is connected to the natural gas engine. The LNG payload controls the level of the vacuum in a space that completely surrounds the first sorb. By the regulation of temperature increase or decrease of two sorbs within the double-sorb controllers, the fueling of the natural gas engines and the airship attitude control is achieved. A second system may be used to plumb the natural gas boil-off into or out of each baffle as necessary to provide course control of the overall airship, and buoyancy and attitude control. Other liquefied or solidified gases such that the gas phase of the material is lighter than air, such as hydrogen, may be substituted for natural gas in this invention. All lighter than air airships, including but not limited to blimps, may be controlled using the invention described herein. | 03-12-2009 |
20090113903 | Cooling methods and systems using supercritical fluids - The methods and systems using supercritical fluids for cooling of objects with high thermal emissions are disclosed. The unique thermodynamic properties of supercritical fluids combined with microchannel cooling technology allow effective absorption of the waste heat and exclude “vapor lock”, “boiling crisis”, and other deficiencies of conventional two-phase liquid cooling. | 05-07-2009 |
20110009854 | EXPANDABLE MULTI-TUBULAR CRYOPROBE - An expandable, flexible multi-tubular cryoprobe operational with a near critical cryogenic working fluid. The inlet fluid transfer micro-tubes utilized are formed of material that maintains flexibility in a full range of temperatures from −200° C. to ambient temperature. During operation, the cryoprobe is mechanically actuated to provide radial expansion of the inlet fluid transfer micro-tubes. Thus, enhanced thermal contact with target biological tissue to be treated is provided. | 01-13-2011 |
Patent application number | Description | Published |
20150175573 | HETEROAROMATIC COMPOUNDS AND THEIR USE AS DOPAMINE D1 LIGANDS - The present invention provides, in part, compounds of Formula I: | 06-25-2015 |
20150196561 | HETEROAROMATIC COMPOUNDS AND THEIR USE AS DOPAMINE D1 LIGANDS - The present invention provides, in part, compounds of Formula I: | 07-16-2015 |
20150291625 | Heteroaromatic Compounds and their Use as Dopamine D1 Ligands - The present invention provides, in part, compounds of Formula I: and pharmaceutically acceptable salts thereof and N-oxides thereof; processes and intermediates for preparation of; and compositions and uses thereof. The present invention further provides D1 agonists with reduced D1R desensitization, D1 agonists with a reduced β-arrestin recruitment activity relative to Dopamine, D1 agonists interacting significantly with the Ser188 but not significantly with the Ser202 of a D1R when binding to the D1R, D1 agonists interacting less strongly with the Asp103 and interacting less strongly with the Ser198 of a D1R when binding to the D1R, and their uses. | 10-15-2015 |
20150307522 | HETEROAROMATIC COMPOUNDS AND THEIR USE AS DOPAMINE D1 LIGANDS - The present invention provides, in part, compounds of Formula I: | 10-29-2015 |
20150344490 | Heteroaromatic Compounds and their Use as Dopamine D1 Ligands - The present invention provides, in part, compounds of Formula I: | 12-03-2015 |
Patent application number | Description | Published |
20150130789 | IMAGE COMPOSITION BASED ON REMOTE OBJECT DATA - When a scene is generated, a content item may identify graphics object service requests associated with the scene. Each scene may have any number of associated graphics object service requests that may be sent to any number of different graphics object services. The graphics object services may be accessible over a network such as the Internet. By requesting object data from graphics object services, a content item may, for example, reduce at least part of the computational burden on a graphics processing unit of a client device. | 05-14-2015 |
20150133215 | SERVICE FOR GENERATING GRAPHICS OBJECT DATA - When a scene is generated, a content item may identify graphics object service requests associated with the scene. Each scene may have any number of associated graphics object service requests that may be sent to any number of different graphics object services. The graphics object services may be accessible over a network such as the Internet. By requesting object data from graphics object services, a content item may, for example, reduce at least part of the computational burden on a graphics processing unit of a client device. | 05-14-2015 |
20150134770 | ADAPTIVE SCENE COMPLEXITY BASED ON SERVICE QUALITY - Content, such as a video game, may be delivered by a content provider to a destination using, for example, streaming content delivery techniques. The transmission of the content may be monitored in order to determine transmission conditions such as a quality of the network connection from the content provider to the destination. The determined transmission conditions may then be used to determine adjustments to a complexity of various scenes associated with the content. For example, in some cases, when transmission conditions are unfavorable, scenes may be adjusted by reducing a complexity of the scenes. | 05-14-2015 |