Rensselaer Polytechnic Institute

Other

Mpi Corporation

Stratasys, Inc.

Basf Fuel Cell Gmbh

Daniel F Walczyk

Raymond H Puffer, Jr

Bruce Phipps

Rory Mackean

Jason Chalfant

J Samuel Batchelder

Oemer Uensal

S Scott Crump

Lakshmi Krishnan

Mark Walter Steiner

Raymond Puffer

Aren Yale Paster

Mathias Weber

Gunter Christ

Aidan Zimmerman

Jaron Kuppers

Christian Dörr

Jake Pyzza

Tequila Harris

Stephen Bornhoft

Keith F Hendrck

Amy E Kerdok

Casey Hoffman

Michael Righi

Todd Snelson

Suvranu De

The present invention relates to a new method for the production of electrochemical cells, in particular individual cells for fuel cells and stacks, in which the individual components of a membrane electrode assembly are compressed and bonded by use of ultrasonic waves and the absence of any further additional heating. The method according to the invention allows faster cycles during the lamination of the membrane electrode assemblies.

Method for the production of an electrochemical cell

A tooth cleaning device for the disabled eliminates the need for the user to rotate her/his wrist while brushing teeth, and provides approximately the same profile as a standard manual toothbrush. The device is capable of effectively brushing all three sides of all upper or lower teeth simultaneously, and utilizes a commercially available battery powered toothbrush power source to provide the power necessary for effective teeth cleaning action. An open top U-shaped track has a number of distinct operatively connected brush bristle mounting heads reciprocal and retained within the track, with a number of bristles extending up from each of the heads. A device, such as an opening in a central head, a linkage, and a battery powered oscillating shaft, provide back and forth arcuate reciprocal movement of the heads within the track to provide tooth cleaning by the bristles.

Tooth cleaning mechanism

An additive manufacturing system for printing a chocolate confection, the system comprising a platen, a recirculation loop configured to circulate a flow of a chocolate material, and further configured to maintain a temper of the chocolate material; and a print head the print head being configured to receive at least a portion of the chocolate material from the recirculation loop, and further configured to extrude and deposit the chocolate material onto the platen to print at least a portion of the chocolate confection based on the commands from a controller.

Additive manufacturing system and method for printing customized chocolate confections

Method and apparatus for consolidating and curing a composite part places and registers a composite laminate layer of thermoset polymer matrix and reinforcing fibers onto the temperature-controlled curing surface of a heated curing mold and provides a base mold with base surface covered by a rubber mask having a mask surface. Three-dimensional surfaces of the curing, base and mask surfaces complement each other so with the curing and base molds adjacent, a pressure space is formed between the base and curing surfaces that contains the compressed rubber mask, a bleeder layer for removing excess air and polymer matrix, and the composite laminate, the pressure space having a perimeter. The base and curing molds are pressed together with a particular force, thereby creating a uniform hydrostatic pressure at the rubber mask and composite laminate interface by virtue of the mold and mask three-dimensional surfaces and rubber mask thickness distribution, to squeeze the composite laminate during consolidation and curing of the part. A vacuum is also applied to the perimeter of the composite laminate during consolidation.

Consolidating and curing of thermoset composite parts by pressing between a heated rigid mold and customized rubber-faced mold

A method for producing a proton-conducting, polyazole-containing membrane, in which

Process for producing a proton-conducting, polyazole-containing membrane

A mechanical load bearing indicator producing signals to a user when the user applies more than selected amounts of load between an extremity of the use and a surface. The indicator has a base plate adapted to establish a frame of reference with the surface, a load plate mounted for movement toward and away from the base plate and adapted to receive loads from the user's extremity, and at least two snap domes mechanically engaged between the base plate and the load plate for generating two signals when more than two different respective loads are applied to the load plate by the extremity. The domes are either in series between the plates or are together in a dual dome containing both, or are one or more stacks of domes which individually collapse under incremental loads which are added together to form the selected lower and higher loads.

Device for mechanical weight bearing indication with load range capability

A knife for heating the wax on the surface of a wax runner. The knife as a surface which is recessed in the center of the surface to permit melted wax to flow up into the recessed area and not flow away from the knife. Alternately, conformal heating surface which melts only that portion of the wax runner to which the pattern gate is affixed. Additionally an electrical circuit is provided which includes a heater and a temperature controller to limit the temperature at which wax is melted.

Heated blades for wax melting

A wax runner is provided having risers along the edge of the surface which is melted to attach the wax gates of wax patterns to the wax runner. The risers prevent the flow of molten wax over the edge of the wax runner. In addition to the risers or separately, at least one locator extends from both ends of the wax runners, the locators are aligned with one another and assure a constant distance between the ends of the wax runner and the wax pattern being affixed to it. The locators further provide a fixed reference point.

Wax runners for casting

A mechanical weight bearing indicator produces a tactile signal which is felt by the wearer's foot. The signal is generated when the user exerts more than a predetermined amount of weight on the indicator, giving the user, who may be an orthopedic patient, immediate feedback concerning the amount of force applied. The indicator automatically resets and has no power source, but is purely mechanical. In one version of the invention, a domed metal disk is used as part of the indicator which snaps from a stable position to an unstable position in the way the bottom of an oil can operates, to produce the tactile signal and also for producing a sound as an audible signal. In another version of the invention, a piston and cylinder are used with the piston moving under the influence of a threshold of pressure exerted by the deformation of a compressible cavity member on which the user steps. The threshold pressure in the compressible cavity member is reached when a one-way, force-actuated release valve is activated.

Mechanical weight bearing indicator for the foot

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Brunswick, NY, United States of America

Daniel F Walczyk