Patent application number | Description | Published |
20130138138 | Occlusion Device - An occlusion device (e.g., for treatment of the left atrial appendage) includes a framework and a biocompatible covering disposed over at least a part of the framework. The framework may include a proximal portion, a middle portion, and a distal portion, wherein: the proximal portion includes a first hub that has a fixed first diameter; the middle portion has a second diameter and includes a plurality of beams extending from the first hub to a distal portion, wherein each of the plurality of beams is connected to an adjacent beam by a first circumferentially extending column of strut pairs; and the distal portion has a third diameter. In one or more embodiments, the framework includes improved circumferential strength and minimizes foreshortening. | 05-30-2013 |
20140018841 | OCCLUSION DEVICE FOR AN ATRIAL APPENDAGE - Occlusion device for an atrial appendage, the device having proximal and distal ends and a central axis and comprising a cage-like structure formed of struts, the struts having proximal strut ends and distal strut ends, wherein at the proximal end of the device the struts extend towards the central axis and are connected to each other at their proximal strut ends, and wherein at least some of the struts are connected to each other at their distal strut ends within the cage-like structure so that the struts form an atraumatic distal end of the device. | 01-16-2014 |
20140074151 | Fixation Anchor Design for an Occlusion Device - An implantable medical device having barbs reducing in height and/or changing angle as the implantable medical device transitions for an expanded state to a constrained state is disclosed which may lessen the risk of injury associated with the removal and/or repositioning of a deployed device. Within the main body of the device may be positioned a plurality of fixation struts having an end secured to the main body and a barb end exiting the main body at a point of egress and extending radially outwards from the main body. The fixation struts may be secured to the main body such that the distance between the point of attachment of the secured end of a fixation strut and the respective point of egress from the main body its free barb forming end is greater in the constrained than expanded state. | 03-13-2014 |
20140135817 | LEFT ATRIAL APPENDAGE CLOSURE IMPLANT - A left atrial appendage closure implant may include a support frame including a first bend extending from a proximal collar to a second bend, a first segment extending from the second bend to a third bend, a second segment extending from the third bend to a fourth bend, and a third segment extending from the fourth bend to a distal collar, wherein the support frame is actuatable from a first constrained position to a second flowering position to a third mid-deployment position to a fourth unconstrained position. An implant may include a self-expanding support frame having a circumference and a central longitudinal axis, a membrane disposed over at least a portion of the support frame, and a plurality of anchors arranged into a first row and a second row such that the first row and the second row form a staggered pattern about the circumference of the support frame. | 05-15-2014 |
20150196300 | RETRIEVAL WIRE CENTERING DEVICE - An occlusive implant system may include a catheter having a lumen extending therethrough, a core wire slidably and rotatably disposed within the lumen, the core wire having a threaded member disposed at a distal end, and a medical implant having an expandable frame, an occlusive element disposed on the frame, and a threaded insert coupled to a proximal portion of the frame, wherein the threaded member is removably coupled to the threaded insert. | 07-16-2015 |
Patent application number | Description | Published |
20080237129 | Regeneration of Sulfuric Acid - This invention relates to a process for recycling acid used to remove nitrogen contaminants from hydrocarbons using polymeric membranes to separate spent acid from the acid extraction of hydrocarbons into acid for recycle and acid for regeneration. | 10-02-2008 |
20090050374 | Method and apparatus for managing variable density drilling mud - A method and system for drilling a wellbore is described. The system includes a wellbore with a variable density drilling mud, drilling pipe, a bottom hole assembly disposed in the wellbore and a drilling mud processing unit in fluid communication with the wellbore. The variable density drilling mud has compressible particles and drilling fluid. The bottom hole assembly is coupled to the drilling pipe while the drilling mud processing unit is configured to separate the compressible particles from the variable density drilling mud. The compressible particles in this embodiment may include compressible hollow objects filled with pressurized gas an configured to maintain the mud weight between the fracture pressure gradient and the pore pressure gradient. In addition, the system and method may also manage the use of compressible particles having different characteristics, such as size, during the drilling operations. | 02-26-2009 |
20100062186 | Ultra-thin polymeric membrane - A ultra-thin polymeric membrane is made by coating a porous substrate, such as a ceramic monolith, with a solution of a polymer colloid, then drying the solution to form the film. The polymer is an associating polymer. The resulting membrane may be used for separating hydrocarbon species, for example. | 03-11-2010 |
20100116553 | Method and Apparatus For Managing Variable Density Drilling Mud - A method and system for drilling a wellbore is described. The system includes a wellbore with a variable density drilling mud, drilling pipe, a bottom hole assembly disposed in the wellbore and a drilling mud processing unit in fluid communication with the wellbore. The variable density drilling mud has compressible particles and drilling fluid. The bottom hole assembly is coupled to the drilling pipe, while the drilling mud processing unit is configured to separate the compressible particles from the variable density drilling mud. The compressible particles in this embodiment may include compressible hollow objects filled with pressurized gas and configured to maintain the mud weight between the fracture pressure gradient and the pore pressure gradient. In addition, the system and method may also manage the use of compressible particles having different characteristics, such as size, during the drilling operations. | 05-13-2010 |
20120061614 | NON-AQUEOUS AMINE SCRUBBING FOR REMOVAL OF CARBON DIOXIDE - A method is described for separating CO | 03-15-2012 |
20120160097 | Epoxy-Amine Acid Gas Adsorption-Desorption Polymers and Oligomers, Processes for Preparing Same, and Uses Thereof - This disclosure involves an adsorption-desorption material, e.g., crosslinked epoxy-amine material having an M | 06-28-2012 |
20120164043 | Organo-Amine Acid Gas Adsorption-Desorption Polymers, Processes for Preparing Same, and Uses Thereof - An adsorption-desorption material, in particular, crosslinked organo-amine polymeric materials having an M | 06-28-2012 |
20120164044 | Vinylepoxide-Amine Acid Gas Adsorption-Desorption Polymers and Oligomers, Processes for Preparing Same, and Uses Thereof - An adsorption-desorption material, in particular, crosslinked vinylepoxide-amine polymeric materials having an M | 06-28-2012 |
20120164045 | Polyvinyl-Amine Acid Gas Adsorption-Desorption Polymers, Processes for Preparing Same, and Uses Thereof - This disclosure involves an adsorption-desorption material, e.g., crosslinked polyvinyl-amine material having an M | 06-28-2012 |
20120223450 | Systems and Methods For Forming High Performance Compressible Objects - The present systems and methods utilize a polyamic acid solution as a precursor to form a polyimide bead having desired properties. The polyamic acid solution may be formed into a polyamic acid droplet. The polyamic acid droplet is then processed to form a polyamic acid bead, such as by extraction of solvent to concentrate the polyamic acid or by partial chemical imidization of the polyamic acid. The polyamic acid bead is then better able to retain its shape during subsequent processing steps, such as drying and pressurizing, before final thermal imidization. | 09-06-2012 |
20120225799 | Systems and Methods For Forming High Performance Compressible Objects - The present systems and methods utilize a polyamic acid solution as a precursor to form a polyimide bead having desired properties. The polyamic acid solution may be formed into a polyamic acid droplet. The polyamic acid droplet is then processed to form a polyamic acid bead, such as by extraction of solvent to concentrate the polyamic acid or by partial chemical imidization of the polyamic acid. The polyamic acid bead is then better able to retain its shape during subsequent processing steps, such as drying and pressurizing, before final thermal imidization. | 09-06-2012 |
20120231979 | Systems and Methods For Forming High Performance Compressible Objects - The present systems and methods utilize a polyamic acid solution as a precursor to form a polyimide bead having desired properties. The polyamic acid solution may be formed into a polyamic acid droplet. The polyamic acid droplet is then processed to form a polyamic acid bead, such as by extraction of solvent to concentrate the polyamic acid or by partial chemical imidization of the polyamic acid. The polyamic acid bead is then better able to retain its shape during subsequent processing steps, such as drying and pressurizing, before final thermal imidization. | 09-13-2012 |
20120298558 | FUNCTIONALIZED FILTERS FOR HEAVY OIL UPGRADING - This invention relates to a process for separating a hydrocarbon stream via a filtration process to produce an upgraded permeate stream with decreased Conradson Carbon Residue (“CCR”) content. The invention involves the modification of a porous ceramic filter by functionalizing the surface of the ceramic filter with an multi-ring aromatic-diimide polymer. Preferably, the multi-ring aromatic-diimide polymer is comprised of a multi-ring aromatic monomer component. The functionalized filters of the present invention can be used in a process to selectively separate components of a hydrocarbon stream to produce an improved permeate (or “filtrate”) product stream with a lower CCR content and improved processing capabilities. The functionalized filters of the present invention are particularly beneficial in filtration processes for upgrading heavy hydrocarbon feedstreams, such as whole crudes, topped crudes, synthetic crude blends, shale oils, oils derived from bitumens, oils derived from tar sands, atmospheric resids, vacuum resids, or other heavy hydrocarbon streams. | 11-29-2012 |
20140186246 | REVERSIBLE CO2 FIXATION VIA SELF-ASSEMBLED SILOXANES - Methods are provided for synthesizing novel types of self-assembled siloxanes, such as polysiloxanes, with a sufficiently high density of amine functional groups to be useful for CO | 07-03-2014 |
Patent application number | Description | Published |
20090084604 | COMPRESSIBLE OBJECTS HAVING PARTIAL FOAM INTERIORS COMBINED WITH A DRILLING FLUID TO FORM A VARIABLE DENSITY DRILLING MUD - A compressible object is described that may be utilized in drilling mud and with a drilling system to manage the density of the drilling mud. The compressible object includes a shell that encloses an interior region. The interior region of the shell is at least partially filled with a foam. The internal pressure of the compressible object may be greater than about 200 psi (pounds per square inch) at atmospheric pressure, greater than 500 psi at atmospheric pressure, greater than 1500 psi at atmospheric pressure or more preferably greater than 2000 psi at atmospheric pressure. | 04-02-2009 |
20090090558 | Compressible Objects Having A Predetermined Internal Pressure Combined With A Drilling Fluid To Form A Variable Density Drilling Mud - A compressible object is described that may be utilized in drilling mud and with a drilling system to manage the density of the drilling mud. The compressible object includes a shell that encloses an interior region. Also, the compressible object has an internal pressure (i) greater than about 200 pounds per square inch at atmospheric pressure and (ii) selected for a predetermined external pressure, wherein external pressures that exceed the internal pressure reduce the volume of the compressible object and wherein the shell being designed to reduce localized strains of the compressible object during expansion and compression of the compressible object. | 04-09-2009 |
20090090559 | COMPRESSIBLE OBJECTS COMBINED WITH A DRILLING FLUID TO FORM A VARIABLE DENSITY DRILLING MUD - A compressible object is described that may be utilized in drilling mud and with a drilling system to manage the density of the drilling mud. The compressible object includes a shell that encloses an interior region. The shell experiences less strain when the external pressure is about equal to the internal pressure than when the external pressure is above or below a predetermined compression interval of the compressible object includes a shell that encloses an interior region. | 04-09-2009 |
20090091053 | METHOD FOR FABRICATING COMPRESSIBLE OBJECTS FOR A VARIABLE DENSITY DRILLING MUD - Methods for fabricating compressible object are described. These compressible objects may be utilized in drilling mud and with a drilling system to manage the density of the drilling mud. The method includes selecting an architecture for a compressible object; selecting a wall material for the compressible object; and fabricating the compressible object, wherein the compressible object has a shell that encloses an interior region, and has an internal pressure (i) greater than about 200 pounds per square inch at atmospheric pressure and (ii) selected for a predetermined external pressure, wherein external pressures that exceed the internal pressure reduce the volume of the compressible object. | 04-09-2009 |
Patent application number | Description | Published |
20080253440 | Methods and Apparatus For Mixing Compressed Digital Bit Streams - Methods, apparatus and articles of manufacture for mixing compressed digital bit streams are disclosed. An example method disclosed herein comprises acquiring a frame associated with a first compressed digital bit stream, unpacking the frame to obtain a plurality of original transform coefficient sets, and modifying the plurality of original transform coefficient sets to mix a second digital bit stream with the first compressed digital bit stream. | 10-16-2008 |
20080318672 | METHODS AND APPARATUS TO METER VIDEO GAME PLAY - Methods and apparatus to meter video game play are described. An example apparatus to meter video game play includes a tag to be attached to a video game controller, the tag having a sensor to detect a user interaction with the video game controller. The apparatus also includes a meter to receive information reflecting the user interaction. | 12-25-2008 |
20100078902 | Protective Guards for Mounting an Identification Tag on a Shopping Carrier - A housing for mounting an identification tag to a shopping carrier is disclosed. An example housing includes a base for mounting the housing to the shopping carrier and a guard cover for protecting the identification tag. The guard cover includes a plurality of sidewalls extending from the base plate and a top wall extending between the sidewalls, the sidewalls and the top wall bounding an interior having an opening. The identification tag is mounted at least partially inside the interior of the guard cover. | 04-01-2010 |
20100198380 | METHODS AND APPARATUS FOR IDENTIFYING A DIGITAL AUDIO SIGNAL - Methods and apparatus for identifying a digital audio signal are described. An example apparatus for identifying a digital audio signal includes an input to receive the digital audio signal, which includes data from a broadcast or a stored digital program signal. The example apparatus also includes a detector to receive the digital audio signal from the input and determine whether the received digital audio signal is uncompressed as received at the input; a decoder to receive the digital audio signal from the detector when the digital audio signal is compressed as received at the input and identify any first program-identifying code in an auxiliary field of the compressed digital audio signal; and a code reader to receive the digital audio signal from the detector when the digital audio signal is uncompressed as received at the input and receive the digital audio signal from a decompressor when the digital audio signal is compressed as received at the input. Additionally, the code reader is to identify any second program-identifying code in a decompressed or uncompressed portion of the digital audio signal when the first program-identifying code is not identified in the auxiliary field or when the digital audio signal is uncompressed as received at the input. | 08-05-2010 |
20110264455 | METHODS, APPARATUS AND ARTICLES OF MANUFACTURE TO PERFORM AUDIO WATERMARK DECODING - Example methods, apparatus and articles of manufacture to perform audio watermark decoding are disclosed. A disclosed example method includes receiving an audio signal including an audience measurement code embedded therein using a first plurality of frequency components, sampling the audio signal, transforming the sampled audio signal into a first frequency domain representation, determining whether the code is detectable in the first plurality of frequency components of the first frequency domain representation, and when the code is not detected in the first plurality of frequency components, examining a second plurality of frequency components of a second frequency domain representation to determine whether the code is detected, the second plurality of frequency components being offset from the first plurality of frequency components by a first offset, the first offset corresponding to a sampling frequency mismatch. | 10-27-2011 |
20130194507 | METHODS AND APPARATUS FOR MIXING COMPRESSED DIGITAL BIT STREAMS - Methods, apparatus and articles of manufacture for mixing compressed digital bit streams are disclosed. An example method disclosed herein comprises acquiring a frame associated with a first compressed digital bit stream, unpacking the frame to obtain a plurality of original transform coefficient sets, and modifying the plurality of original transform coefficient sets to mix a second digital bit stream with the first compressed digital bit stream. | 08-01-2013 |
20130217499 | METHODS AND APPARATUS TO METER VIDEO GAME PLAY - Methods and apparatus to meter video game play are disclosed. An example method includes detecting media identifying information corresponding to media presented in an environment including a video game system capable of executing a plurality of video games; identifying which of the plurality of video games is being played via a video game controller based on the media identifying information, wherein the video game controller is coupled to a sensor to detect motion data related to movement of the video game controller and to transmit the motion data without affecting operation of the video game system; and combining, via a processor, the media identifying information with the motion data received from the sensor. | 08-22-2013 |
20140114669 | METHODS, APPARATUS AND ARTICLES OF MANUFACTURE TO PERFORM AUDIO WATERMARK DECODING - Example methods, apparatus and articles of manufacture to perform audio watermark decoding are disclosed. A disclosed example method includes receiving an audio signal including an audience measurement code embedded therein using a first plurality of frequency components, sampling the audio signal, transforming the sampled audio signal into a first frequency domain representation, determining whether the code is detectable in the first plurality of frequency components of the first frequency domain representation, and when the code is not detected in the first plurality of frequency components, examining a second plurality of frequency components of a second frequency domain representation to determine whether the code is detected, the second plurality of frequency components being offset from the first plurality of frequency components by a first offset, the first offset corresponding to a sampling frequency mismatch. | 04-24-2014 |