Abstract: A medical device having an expandable fluid-tight bladder formed integral within a wrap (or sheath) that can be securely fastened onto a human foot. The foot wrap positions and holds the bladder under the arch of the foot so as to compress the sole area when the bladder is inflated. The foot wrap is soft, lightweight, flexible and suitable for extended wear with minimum discomfort. It can be readily used with a pneumatic or hydraulic pressure applicator or cyclic pump to promote blood circulation in the legs of bedridden patients.

Abstract: Systems and techniques for remediation of soil, vapor and groundwater contaminated with hydrocarbons. The system is ideally suited for easy integration into a mobile remediation unit that uses a liquid ring vacuum pump to extract a contaminated mixture from a sub-surface formation and direct it into a separator, which also serves to shield the high-flow vacuum pump from nongaseous phases of the contaminated matter that would otherwise reduce its efficiency. Cooling systems are employed to render the unit more independent and self-contained, and an automatic vent and low-shear pump-down cycle is used to transfer liquid phases to fractionation subsystems with minimal emulsification.