Model 725DA valve provides dispensing of medium- to high-viscosity fluids such as epoxies, lubricants, RTVs, solder masks, and brazing pastes. A piston stroke adjustment provides adjustable fluid-flow and snuff-back control. The valves can be used for tens of millions of cycles with minimal maintenance, and have no seals to wear out and leak. Instead an inert polyethylene diaphragm isolates the valve's actuator from its wetted components.
EFD Dispense Valve Systems, 977 Waterman Ave., East Providence, RI 02914, FAX (401) 431-0237.
One way to keep a Formula One racing team moving at breakneck speed in the pit and at the test facility is to bring CAD drawings of the racing vehicleís parts down to the test facility and even out to the track.
Most of us would just as soon step on a cockroach rather than study it, but thatís just what researchers at UC Berkeley did in the pursuit of building small, nimble robots suitable for disaster-recovery and search-and-rescue missions.
Design engineers need to prepare for a future in which their electronic products will use not just one or two, but possibly many user interfaces that involve touch, vision, gestures, and even eye movements.
Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies.
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