Mine Safety Appliances Company

Westinghouse Electric Corporation

Protective Products Enterprises, Inc.

James A Hendrickson

Roland Zeder

Thomas M Salapow

David C Demyan

Michael F Becker

Anthony J Brewer

Eric Richard Colburn

Jeffrey T Dederer

Jacob Loverich

Layton A Wise

Jeremy Frank

Donald T Hackworth

David Marschik

Eric R Colburn

Roy D Marangoni

Paul A Zeller

David J Pickrell

Lawrence J Long

Vincent M Colaizzi

Glenn C Davis

James G Tomlinson

Matthew J Palamara

Terry G Giles

Eric J Beck

Peter A Frank

A device includes a substrate and a transducer attached to the substrate, wherein the substrate includes a surface to which the transducer is attached and at least one edge member extending along at least a portion of the outside edge of the surface. The surface can be a generally planar surface. The edge member is stiffer than the surface. In several embodiments, the transducer is adapted to vibrate. The transducer can, for example, be selected from the group consisting of a piezoelectric transducer, an electrostrictive transducer and a magnetostrictive transducer. Preferably, the transducer is attached to the surface of the substrate by a metallic bonding agent and, more particularly, by welding.

Devices and systems including transducers

A breathing system includes a container to store a gas under pressure, wherein the gas includes air or oxygen. The container includes an outlet through which the gas exits the container. The breathing system further includes a generator system including a generator in operative connection with the container outlet such that energy is supplied to the generator by the pressurized gas. The generator converts the energy supplied by the pressurized gas to electrical energy. The system further includes a fluid path in connection with the generator through which pressurized gas passes after providing energy to the generator and a respiration facepiece in fluid connection with the fluid path.

Devices, systems and methods for generating electricity from gases stored in containers under pressure

A thermal imaging camera having improved durability and ergonomic features including generally a seamless housing encompassing a thermal imaging core, a first handle, and a battery compartment. The housing is preferably positioned at a first end of the first handle and the battery compartment is positioned at the opposite end of the first handle. By positioning the first handle intermediate between the housing and the battery compartment, the center of gravity of the thermal imaging camera coincides generally with the handle when the thermal imaging camera is in use, that is when batteries are present within the battery compartment. The camera can also include a second handle positioned between the housing and the battery compartment, the second handle is preferably oriented generally parallel to and spaced apart from the first handle to facilitate passing of the thermal imaging camera between users. The camera also has improved water resistance, shock-resistance and other operational features.

Thermal imaging camera

A suspension for a protective helmet having a headband section that encompasses at least a part of a user's head and a crown support section connected to the headband section. The headband section and the crown support section of the suspension are fabricated from an integral piece of material. The suspension system may also have a headband comprising a section of elastic material. Alternatively, the headband may comprise a forward band having a first section to contact the forehead of the user and a second section adapted to be positioned between the user's head and the crown support section of the suspension during use thereof.

Suspension for protective headgear

A superconducting magnetic energy (SMES) system having an axially sectioned multilayered solenoid coil immersed in a liquid helium bath contained in annular helium vessel includes as an interface between each section of the inner and outer layers of the coil and the helium vessel a finger plate assembly comprising a plurality of electrically nonconductive finger plates clamped at one end with spacers between adjacent finger plates to hanger plates welded to the helium vessel walls. The other ends of the finger plates are interleafed with the turns of the coil and clamped together with the coil turns by clamping assemblies which clamp the turns in adjacent layers of the coil. Loading bars between the layers transmit the radial loads generated by the magnetic and thermal forces acting on the coil to the finger plates. The radial loads pass through the finger plates to the helium vessel side walls and then through radial struts outside the helium vessel to the walls of a trench in which the SMES system is installed. Axial loads on the coil produced by the Lorentz force and differential thermal expansion and contraction of the coil relative to the helium vessel are absorbed in bending of the finger plates.

Superconducting magnetic energy storage system with low friction coil

A high power density semiconductor module of reduced size and weight wherein a fusion element assembly for meeting electrical power processing requirements is nested in a hollow casing for both electrically insulating and operatively cooling by a single fluid medium. A pair of electrically conductive terminals penetrates the casing at opposite ends to make an electrical path through the fusion element assembly which resides within the casing as a stack in which each semiconductor fusion element is interleaved with plural heat sink elements undergoing a uniform compressive loading parameter. The stack is electrically insulated and cooled through transverse grooves in the fusion element assembly, which in one embodiment for space based utilization, is by way of finned heat sink or backing plate elements for passaging a dual function cryogen fluid such as supercritical liquid hydrogen. A terrestrial aviation or marine based utilization, provides that an ester base cooling oil having good dielectric properties may be instead used.

High power density solid-state, insulating coolant module

Growing community of inventors

Freedom, PA, United States of America

James A Hendrickson