Patent application number | Description | Published |
20100031617 | PARTICLE FILTER SYSTEM INCORPORATING NANOFIBERS - A filtration device including a filtration medium having a plurality of nanofibers of diameters less than 1 micron formed into a fiber mat in the presence of an abruptly varying electric field. The filtration device includes a support attached to the filtration medium and having openings for fluid flow therethrough. A device for making a filter material. The device includes an electrospinning element configured to electrospin a plurality of fibers from a tip of the electrospinning element, a collector opposed to the electrospinning element configured to collect electrospun fibers on a surface of the collector, and an electric field modulation device configured to abruptly vary an electric field at the collector at least once during electrospinning of the fibers. A method for making a filter material. The method provides a support having openings for fluid flow therethrough, electrospins nanofibers across an entirety of the openings, and abruptly varies an electric field at the collector at least once during electrospinning of the fibers. | 02-11-2010 |
20100177518 | LONG-PASS OPTICAL FILTER MADE FROM NANOFIBERS - An optical device having a mat including plural nanofibers configured to transmit light having wavelengths above a cutoff wavelength and to reject light at wavelengths below the cutoff wavelength. The nanofibers have an average fiber diameter comparable in size to the cutoff wavelength. | 07-15-2010 |
20100209602 | LUMINESCENT DEVICE - A device for stimulable light emission that includes a fiber mat of nanofibers having an average fiber diameter in a range between 100 and 2000 nm, and includes plural stimulable particles disposed in association with the nanofibers. The stimulable particles produce secondary light emission upon receiving primary light at a wavelength λ. The average fiber diameter is comparable in size to the wavelength λ in order to provide scattering sites within the fiber mat for the primary light. Various methods for making suitable luminescent nanofiber mats include: electrospinning a polymer solution including or not including the stimulable particles and forming from the electrospun solution nanofibers having an average fiber diameter between 100 and 2000 nm. Methods, which electrospin without the stimulable particles, introduce the stimulable particles during electrospinning or after electrospinning to the fibers and therefore to the resultant fiber mat. | 08-19-2010 |
20110031638 | ELECTROSPRAY/ELECTROSPINNING APPARATUS AND METHOD - Apparatus and method for producing fibrous materials in which the apparatus includes an enclosure having an inlet configured to receive a substance from which the fibrous materials are to be composed, a common electrode disposed in the enclosure, and plural extrusion elements provided in a wall of the enclosure opposite the common electrode so as to define between the plural extrusion elements and the common electrode a space in communication with the inlet to receive the substance in the space. In the method, a substance from which the fibrous materials are to be composed is fed to the enclosure having the plural extrusion elements, a common electric field is applied to the extrusion elements in a direction in which the substance is to be extruded, the substance is extruded through the extrusion elements to tips of the extrusion elements, and the substance is electrosprayed from the tips to form the fibrous materials. | 02-10-2011 |
20110174158 | PARTICLE FILTER SYSTEM INCORPORATING ELECTRET NANOFIBERS - A filtration device including a filtration medium having a plurality of nanofibers of diameters less than 1 micron formed into a fiber mat in the presence of an abruptly varying electric field during electrospinning of the plurality of nanofibers. The nanofibers retain charge in the filtration medium from the electrospinning. The filtration device includes a support attached to the filtration medium and having openings for fluid flow therethrough. A method for making a filter material. The method provides a support having openings for fluid flow therethrough, electrospins nanofibers across an entirety of the openings, abruptly varies an electric field at the collector at least once during electrospinning of the fibers, and retains charge on the nanofibers after formation of the filtration medium. | 07-21-2011 |
20120045752 | FIBER SAMPLER FOR RECOVERY OF BIOAEROSOLS AND PARTICLES - A bioparticle collection device and an aerosol collection system. The bioparticle collection device includes a collection medium including a plurality of fibers formed into a fiber mat and configured to collect bioparticles thereon, and includes a viability enhancing material provider disposed in a vicinity of the plurality of fibers and configured to provide a viability enhancing material to the collected bioparticles to maintain viability of the bioparticles collected by the fiber mat. The aerosol collection system includes an aerosol pumping device configured to entrain particles in an gas stream, an aerosol saturation device configured to saturate the particles in the gas stream with a biocompatible liquid, and an aerosol collection medium downstream from the aerosol saturation device and including a plurality of fibers formed into a fiber mat for collection of the saturated aerosol particles. | 02-23-2012 |
20120077014 | ELECTROSPINNING IN A CONTROLLED GASEOUS ENVIRONMENT - Apparatus and method for producing fibrous materials in which the apparatus includes an extrusion element configured to electrospin a substance from which the fibers are to be composed by an electric field extraction of the substance from a tip of the extrusion element, a collector disposed from the extrusion element and configured to collect the fibers, a chamber enclosing the collector and the extrusion element, and a control mechanism configured to control a gaseous environment in which the fibers are to be electrospun. The apparatus and method provide a way to produce a fiber collection having a plurality of nanofibers disposed in relation to each other. The nanofibers in the fiber collection are preferentially oriented along a longitudinal axis of the fiber collection. | 03-29-2012 |
20130308334 | LUMINESCENT DEVICE - A device for stimulable light emission that includes a fiber mat of nanofibers having an average fiber diameter in a range between 100 and 2000 nm, and includes plural stimulable particles disposed in association with the nanofibers. The stimulable particles produce secondary light emission upon receiving primary light at a wavelength λ. The average fiber diameter is comparable in size to the wavelength λ in order to provide scattering sites within the fiber mat for the primary light. Various methods for making suitable luminescent nanofiber mats include: electrospinning a polymer solution including or not including the stimulable particles and forming from the electrospun solution nanofibers having an average fiber diameter between 100 and 2000 nm. Methods, which electrospin without the stimulable particles, introduce the stimulable particles during electrospinning or after electrospinning to the fibers and therefore to the resultant fiber mat. | 11-21-2013 |
20140287230 | NANOSTRUCTURED POLYMER-INORGANIC FIBER MEDIA - A fiber media and a filter device. The fiber media has a plurality of nanofibers formed of a polymer material, having diameters less than 1 micron, and formed into a fiber mat. A barrier layer is disposed on the nanofibers to prevent dissolution of the nanofibers in the fiber mat upon exposure of the fiber mat to a solvent of the polymer material. The barrier layer coated nanofibers have a maximum strain before breakage of at least 2%. The filter device includes the fiber media and a support attached to the fiber mat. | 09-25-2014 |
20150024379 | FIBER SAMPLER FOR RECOVERY OF BIOAEROSOLS AND PARTICLES - An aerosol collection system and method. The system includes a bio-aerosol delivery device configured to supply bioparticles in a gas stream, a moisture exchange device including a partition member coupled to the gas stream and configured to humidify or dehumidify the bioparticles in the gas stream, and an aerosol collection medium downstream from the moisture exchange device and configured to collect the bioparticles. The method includes delivering bioparticles in a gas stream, humidifying or dehumidifying the bioparticles in the gas stream by transport of water across a partition member and into a vapor phase of the gas stream, and collecting the bioparticles by a collection medium. | 01-22-2015 |
Patent application number | Description | Published |
20150055561 | METHOD AND APPARATUS FOR PROVIDING SERVICES ACROSS SERVICE DOMAINS - The present invention supports services that span multiple service domains. In one embodiment, the present invention provides service-level interaction between an enterprise network and a non-enterprise network (or networks), thereby enabling enterprise users at remote locations (i.e., at home, on vacation, or at other locations remote from the enterprise location) to use services typically only available to the enterprise users while at the enterprise location (e.g., while in the office). The present invention provides a calendar notification service, whereby a calendar notification originating in an enterprise network is provided to a remote enterprise user via a non-enterprise network. The present invention provides an enterprise dialing plan service, whereby a remote enterprise user may register a remote user device to be able to use an enterprise dialing plan. Once registered, the remote enterprise user may use the enterprise dialing plan from the remote user device to place calls to local enterprise users at local user devices connected to the enterprise network and, similarly, local enterprise users may use the enterprise dialing plan to place calls to the remote enterprise user at the remote user device. | 02-26-2015 |
20150281166 | CHAT-BASED SUPPORT OF MULTIPLE COMMUNICATION INTERACTION TYPES - A chat-based communication capability is presented. In at least some embodiments, a chat-based communication capability utilizes a chat-based communication paradigm to support one or more communication interaction types not typically supported by chat-based communication paradigms. In at least some embodiments, a chat-based communication capability supports chat-based communication between a human entity and a non-human entity (e.g., a device, a program, a process, an organization, or the like). In at least some embodiments, a chat-based communication capability supports chat-based communication between multiple non-human entities (e.g., where the non-human entities may include devices, programs, processes, organizations, or the like). | 10-01-2015 |
Patent application number | Description | Published |
20100057748 | Method and Apparatus for Parameterized Promotion and Delivery of Data - The invention includes a method and apparatus for promoting a data item within a data distribution network. In one embodiment, a method includes monitoring at least one parameter for the data item where the data item is associated with an application or service, propagating the data item from a first data server toward a second data server based on the monitoring of the at least one parameter for the data item, and propagating, toward at least one device, a message indicative of the propagation of the data item from the first data server toward the second data server. The message is for adapting the at least one device to identify the second data server as a source of the data item capable of serving future requests for the data item. | 03-04-2010 |
20100083189 | METHOD AND APPARATUS FOR SPATIAL CONTEXT BASED COORDINATION OF INFORMATION AMONG MULTIPLE DEVICES - The invention includes a method and apparatus for coordinating transfer of information between ones of a plurality of devices including a coordinating device and at least one other device. In one embodiment, a method includes detecting selection of an item available at a first one of the devices, detecting a gesture-based command for the selected item, identifying a second one of the devices based on the gesture-based command and a spatial relationship between the coordinating device and the second one of the devices, and initiating a control message adapted for enabling the first one of the devices to propagate the selected item toward the second one of the devices. The control message is adapted for enabling the first one of the devices to propagate the selected item toward the second one of the devices. The first one of the devices on which the item is available may be the coordinating device or another device. | 04-01-2010 |
20120002884 | METHOD AND APPARATUS FOR MANAGING VIDEO CONTENT - Video files stored in a data store are managed by analyzing the semantic relationship of at least one associated descriptive tag of a given video file to tags associated with video files in the data store. The results of the analysis are used to select a set of video files from those stored in the data store. The content of the given video file is compared with the content of the selected set to determine the similarity of the content. The results of the determination may be used to update information concerning the similarity of video files in the data store, for example, to be used in providing results in response to a search query. | 01-05-2012 |
Patent application number | Description | Published |
20120149946 | PROCESS FOR THE PREPARATION OF 2,2,4,4-TETRAALKYLCYCLOBUTANE-1,3-DIOLS - Disclosed is a process for the preparation of a 2,2,4,4-tetraalkylcyclobutane-1,3-diols by hydrogenation of a 2,2,4,4-tetraalkylcyclobutane-1,3-dione in the presence of a catalyst comprising ruthenium deposited on a carbon nanotube support. The process is useful for the preparation of 2,2,4,4-tetramethylcyclobutane-1,3-diol. The process may be carried out in the presence or absence of a solvent and in the liquid or vapor phase. Also disclosed is a process for modifying the cis:trans ratio of the 2,2,4,4-tetramethylcyclo-butane-1,3-diol hydrogenation product by contacting the diol with hydrogen in the presence of a supported ruthenium catalyst. | 06-14-2012 |
20120149948 | PROCESS FOR THE ISOMERIZATION OF 2,2,4,4-TETRAALKYLCYCLOBUTANE-1,3-DIOLS - Disclosed is a process for the isomerization of 2,2,4,4-tetraalkylcyclobutane-1,3-diols, such as 2,2,4,4-tetramethylcyclobutane-1,3-diol, by contacting the diol with a supported ruthenium catalyst in the presence of hydrogen at elevated pressures and temperatures. The process is carried under conditions in which there is no net production of 2,2,4,4-tetraalkylcyclobutane-1,3-diol. The process may be carried out in the presence or absence of a solvent and in the liquid or vapor phase. | 06-14-2012 |