University of Texas System

Applied Cardiovascular Solutions, LLC

Other

Sandia Corporation

Dtm Corporation

Bp Corporation North America Inc.

Specialty Metals Processing Consortium

Foti, David Anthony

Beaman, Joseph Jefferson

Fish, Scott

Winters, Warren Jefferson

Joseph Jefferson Beaman, Jr

Harris L Marcus

Joel W Barlow

Carl Robert Deckard

David L Bourell

David K Melgaard

Krishnendu Roy

F Javier Otero

Andrew Zimbroff

Richard H Crawford

Rodney L Williamson

Richard J Lagow

Goonhee Lee

Suman Das

Timothy Fuesting

Lawrence E Brown

James F Darrah

Warren Jeffrey Winters

Deborah A Hagen

Neal K Vail

Gregory J Shelmidine

Desiderio Kovar

Christopher L Hysinger

David A Foti

David G Evans

Lee A Bertram

Kris W Grube

Joseph C McGrath

Frost R Prioleau

James R Tobin

Balasubramanian Badrinarayan

Scott Fish

Douglas W Freitag

Warren Jefferson Winters

David Anthony Foti

Provided herein are methods, compositions, and devices for occluding cavities or passageways in a patient, in particular cavities or passageways in the cardiovascular system of a patient, such as the LAA of a patient's heart. The methods, compositions, and devices can be used to percutaneously occlude the LAA, decreasing the risk of thromboembolic events associated with AF.

Methods, compositions, and devices for the occlusion of cavities and passageways

A well monitoring system particularly useful in detecting kicks in the well includes a well, a well system, and a computing apparatus. The well defines a wellbore and the well system includes at least one sensor measuring at least one well condition. The computing apparatus hosts a well monitoring software component that performs a method to detect a kick in a well. The method includes: storing a set of real-time data from a measurement of a well condition by the sensor, the measurements being correlative to an unplanned fluid influx into the well; modeling the operation of the well with a physics-based, state space model of the well system to obtain an estimate of the well condition; and applying the real-time data set and the estimate to a probabilistic estimator to yield a probability of an occurrence of a kick and a confidence measure for the probability.

Method and apparatus for early detection of kicks

Compositions and devices for the occlusion of cavities and passageways

Various implementations include systems and methods for simultaneously applying an electric field and localized energy from an energy source to ceramic particles on a layer by layer basis to form a ceramic workpiece using additive manufacturing. The workpiece may be freely removed from the unsintered ceramic particles. In some implementations, the workpiece is partially densified when removed from the unsintered ceramic particles, but it may be heated until fully densified. According to some implementations, these systems and methods remove or reduce the need for binders and reduce manufacturing time.

Systems and methods for additive manufacturing of ceramics

A Vacuum Arc Remelting controller apparatus wherein process control is accomplished primarily through control of pool power. Pool power being defined as the total energy flux into a top ingot surface of the VAR ingot. The controller apparatus of the present invention comprises a controller computer that transmits commands to the host furnace through an ethernet connection.

Apparatus to control the total energy flux into the top ingot surface during vacuum arc remelting processes

An apparatus for and method of controlling a remelting furnace comprising adjusting current supplied to an electrode based upon a predetermined pool power reference value and adjusting the electrode drive speed based upon the predetermined pool power reference value.

Pool power control in remelting systems

An apparatus and method for controlling an electroslag remelting furnace comprising adjusting electrode drive speed by an amount proportional to a difference between a metric of electrode immersion and a set point, monitoring impedance or voltage, and calculating the metric of electrode immersion depth based upon a predetermined characterization of electrode immersion depth as a function of impedance or voltage.

Electrode immersion depth determination and control in electroslag remelting furnace

A method of fabricating a fully dense, three dimensional object by direct laser sintering is disclosed. In a chamber with a partial pressure atmosphere, a beam of directed energy melts metallic powder in order to form a solid layer cross section. Another layer of powder is deposited and melted, along with a portion of the previous layer. The energy beam typically is in the form of a laser, scanning along a path resembling a parametric curve or another, arbitrary piecewise parametric curve. In another embodiment, the previous layer is not remelted, thus creating an oxide film that acts as a clean stop to prevent unwanted downward growth.

Direct selective laser sintering of metals

A process for making bone implants from calcium phosphate powders is disclosed. This process involves selectively fusing layers of calcium powders that have been coated or mixed with polymer binders. The calcium powder mixture may be formed into layers and the polymer fused with a laser. Complex three-dimensional geometrical shapes can be automatically replicated or modified using this approach.

Artificial bone implants

The present invention relates to a method an apparatus for fabricating a component by a direct laser process. One form of the present invention contemplates a gas turbine engine blade having an abrasive tip formed directly thereon.

Method and apparatus for making components by direct laser processing

An apparatus and method of controlling a remelting process by providing measured process variable values to a process controller; estimating process variable values using a process model of a remelting process; and outputting estimated process variable values from the process controller. Feedback and feedforward control devices receive the estimated process variable values and adjust inputs to the remelting process. Electrode weight, electrode mass, electrode gap, process current, process voltage, electrode position, electrode temperature, electrode thermal boundary layer thickness, electrode velocity, electrode acceleration, slag temperature, melting efficiency, cooling water temperature, cooling water flow rate, crucible temperature profile, slag skin temperature, and/or drip short events are employed, as are parameters representing physical constraints of electroslag remelting or vacuum arc remelting, as applicable.

Dynamic control of remelting processes

Growing community of inventors

Austin, TX, United States of America

Joseph Jefferson Beaman, Jr