Abstract: This invention relates generally to filtration cassettes, and, more particularly to methods of fabricating cross-flow filtration cassettes. Cassettes of the invention are characterized, in part, by a series of sealing channels which selectively seal the filtrate and retentate ports to prevent undesired flow. The sealing channels have formed barriers on either side thereof which create side-walls for precisely controlling the flow of the sealant during the cassette formation. Filtration cassettes of the present invention can be manufactured from conventional membrane and flow screen components and can utilize both injection molding and vacuum assisted resin transfer molding fabrication processes.

Abstract: The present invention provides membrane cassettes and stacks thereof which are suitable for a use in a variety of electrochemical applications. The invention further provides membrane cassettes which comprise one or more external manifolds which deliver reagents and/or coolant to one or more reactant or coolant flow fields of the membrane cassettes. In certain preferred embodiments, the invention provides cassettes and stacks which are suitable for use in fuel cell applications.

Abstract: A surgical device includes a return electrode, an active electrode, and an insulating region adjacent to the active electrode. A rasping surface is provided by either the active electrode or the insulating region. Another surgical device includes an adapter configured to couple to a generator and to convert monopolar output from the generator into bipolar output. A method of applying electricity to tissue includes bringing a surgical device into close proximity with tissue and applying electricity to the tissue using the surgical device.

Abstract: This invention relates generally to filtration cassettes, and, more particularly to methods of fabricating cross-flow filtration cassettes. Cassettes of the invention are characterized, in part, by an internal porting (e.g., manifolding) feature which eliminates the need for a separate step to seal individual components prior to assembly of the filtration cassette. Filtration cassettes of the present invention can be manufactured from conventional membrane and flow screen components and can utilize both injection molding and vacuum assisted resin transfer molding fabrication processes.

Abstract: The present invention provides membrane cassettes and stacks thereof which are suitable for a use in a variety of electrochemical and ion exchange applications. The present invention also provides methods of manufacturing the membrane cassettes and stacks of the invention. In certain preferred embodiments, the invention provides cassettes and stacks which are suitable for use in fuel cell applications.

Abstract: A front squeeze trigger discharge assembly for use with a fire extinguisher having a pressurized extinguishing medium therein includes a housing defining a flow chamber. The housing has a front portion and a rear portion configured to rest in the hand of a user, and a pivotable trigger handle mounted to the housing and positioned at the front portion thereof. The pivotable trigger handle is configured for gripping by a user's fingers. The handle includes a pivot for rotating the handle relative to the housing between a first position and a second position toward the housing for discharging the extinguishing medium from the extinguisher. The handle includes a discharge nozzle positioned on the front of the housing and a discharge valve assembly operably connected to said trigger handle for providing a flow path between the container and the discharge nozzle. The trigger handle is pivotable from the first position to the discharge position inward of the housing by gripping the handle and pulling thereon, i.e.