The Johns Hopkins University

University of North Texas

Paul J Biermann

Jack C Roberts

Rengaswamy Srinivasan

Craig B Leese

Richard Francis Reidy

Amy A Corvelli

Jeffrey P Maranchi

Arthur S Francomacaro

Lance M Baird

Gary E Peck

Ryan J Forrest

John A Ecker

Ryan M Deacon

Neil Samuel Rothman

Bliss G Carkhuff

Steven M Griffiths

Konstantinos Gerasopoulos

Russell P Cain

Jason J Benkoski

Charles W Kerechanin, Ii

Steven M Storck

Xiomara Calderon-Colon

Gregory Chirikjian

Woodrow Seamone

Matthew G Bevan

Jay Martin

Joshua D Davis

Frederick C Jurgens

Justin S Morrison

William R Setzler

Michael D M Kutzer

Robert Matteson

Michael Kleinberger

Melanie L Morris

Articles and insulating systems include a wicking layer, an incompressible insulation layer, and a water scavenging system comprising a superhydrophobic layer in operative communication with one or more water collecting components.

Incompressible moisture-scavenging article

Systems and methods for conformal additive manufacturing are disclosed. In particular, systems and methods are disclosed utilizing variable offset curves and/or a manipulated solution to Laplace's equation to generate layers between an initial boundary and a desired boundary.

Systems and methods for conformal additive manufacturing

Functionalized metallic feedstock and three-dimensional articles formed therefrom via an additive manufacturing process are provided. The functionalized metallic feedstock includes a plurality of discrete metallic substrates including a first metallic substrate having a first surface area, in which at least a portion of the first surface area comprises a functionalizing agent selected to render the first metallic substrate resistant to corrosion.

Empowering additive manufacturing metals and alloys against localized three-dimensional corrosion

A thin film electrode is fabricated from a non-metallic, non-conductive porous support structure having pores with micrometer-range diameters. The support may include a polymer film. A first surface of the support is metalized, and the pores are partially metallized to create metal tubes having a thickness within a range of 50 to 150 nanometers, in contact with the metal layer. An active material is disposed within metalized portions of the pores. An electrolyte is disposed within non-metalized portions of the pores. Active materials may be selected to create an anode and a cathode. Non-metalized surfaces of the anode and cathode may be contacted to one another to form a battery cell, with the non-metalized electrolyte-containing portions of the anode facing the electrolyte-containing portions of the cathode pores. A battery cell may be fabricated as, for example, a nickel-zinc battery cell.

Method of fabricating thin film electrodes including metal tubes filled with active material

A prosthetic interface includes an orientation assembly, a mounting plate and a load bearing assembly. The orientation assembly includes an anterior frame portion and a posterior frame portion. The anterior frame portion extends over an anterior portion of a torso of a wearer of the prosthetic interface. The posterior frame portion extends over a posterior portion of the torso. The mounting plate is disposed at an intersection of the posterior frame portion and the anterior frame portion. The mounting plate forms a structure to which a prosthetic limb is attachable. The load bearing assembly includes breathable fabric forming a load distribution matrix to distribute a load on the mounting plate over portions of the torso with which the fabric is in contact.

Breathable microframe prosthetic interface

A method of making an antifouling article includes providing a mold having a mold cavity and a mold surface for defining an article. The method also includes applying a mold release material to the mold surface. The method further includes coating the mold surface with a plurality of metallic powder particles comprising an antifouling agent. Still further, the method includes filling the mold with a curable polymeric material. Yet further, the method includes curing the polymeric material and forming an article having a surface defined by the mold surface, the surface of the article having the plurality of metallic powder particles disposed thereon and comprising an antifouling coating.

Methods for applying a powder metal layer to polymer articles as an antifouling coating

Thin-film electrodes and battery cells, and methods of fabrication. A thin film electrode may be fabricated from a non-metallic, non-conductive porous support structure having pores with micrometer-range diameters. The support may include a polymer film. A first surface of the support is metalized, and the pores are partially metallized to create metal tubes having a thickness within a range of 50 to 150 nanometers, in contact with the metal layer. An active material is disposed within metalized portions of the pores. An electrolyte is disposed within non-metalized portions of the pores. Active materials may be selected to create an anode and a cathode. Non-metalized surfaces of the anode and cathode may be contacted to one another to form a battery cell, with the non-metalized electrolyte-containing portions of the anode facing the electrolyte-containing portions of the cathode pores. A battery cell may be fabricated as, for example, a nickel-zinc battery cell.

Thin film electrodes including metal tubes filled with active material and battery cells, and methods of fabrication

An impact resistant device is provided comprising a support matrix and a plurality of energy absorbing elements operatively connected to the support matrix, each element comprising at least one ceramic material and at least one strain rate sensitive material. The impact resistant device can be worn as body armor to protect the wearer from high velocity projectiles.

Impact resistant flexible body device

An impact resistant device is provided comprising a flexible support matrix and a plurality of energy absorbing elements operatively connected to the support matrix, each element comprising at least one ceramic material and at least one strain rate sensitive material. The impact resistant device can be worn as body armor to protect the wearer from high velocity projectiles.

A structure that includes a plurality of cells of a cured resinous material. Each cell is joined to at least one other cell.

Structure including a plurality of cells of cured resinous material, method of forming the structure and apparatus for forming the structure

A method of covertly detecting and reporting a distress condition in a control cabin of a vehicle, the cabin having designated areas expected to be occupied by respective operators under normal operating conditions of the vehicle. The method comprises (a) attaching to each operator a transponder tag configured to wirelessly transmit a response signal, unique to the operator to which it is attached, responsive to an interrogator signal; (b) wirelessly transmitting interrogator signals into the designated areas; (c) attempting to detect response signals, if any, from the transponder tags; and (d) if all of the response signals are concurrently not detected, then wirelessly transmitting a distress signal from the vehicle.

Method and apparatus for covertly detecting and reporting a distress condition in a vehicle control cabin

An instrumented torso model that simulates anatomical features and measures the effects on a body caused by various types of impacts. Simulated bone having material properties similar to that of healthy human bone is surrounded by simulated tissue. At least one sensor array is attached to either or both of the simulated bone and the simulated tissue for measuring the effects of the impacts.

Instrumented torso model

An orthopedic implant comprising a thermoplastic polymer or a composite comprising, in one embodiment, polyetheretherketone reinforced with 10% by volume of glass fibers, with an elastic modulus approximating the elastic modulus of bone. A porous coating is formed on the implant surface by creating a roughness thereon, by coating the surface with hydroxyapatite or by embedding a biocompatible material such as titanium in the surface. A two piece embodiment of the implant is joined and locked together, after the opposite ends of each piece are inserted in the medullary canal, using an interlocking mechanism comprising a fluted protrusion on one piece and a corresponding fluted cavity in the other piece with the fluted portions being complementarily tapered.

Polymeric composite orthopedic implant

A bone substitute that drills and cuts like bone for use in training and testing comprising an inner core of a foamable polymer or other soft material and an outer shell of a polymer such as an epoxy resin with a particulate filler such as aluminum oxide or silicon carbide added thereto together with, in some cases, titanium oxide to form a slurry for casting or molding around the inner core. Also provided is a method for making the bone substitute.

Growing community of inventors

Columbia, MD, United States of America

Paul J Biermann