Abstract: Described is a new portable workstation dust collection attachment for collecting and removing, in combination with a suctioning filter apparatus such as a vacuum cleaner, dust and other airborne particulate matter produced during processing of a workpiece. The portable workstation dust collection attachment comprises a funnel-shaped dust intake structure having an upwardly opening rectangular suctioning aperture defined by the large end of the funnel and a pressure port defined by the small end of the funnel. Also included is an upwardly projecting protective plate whereby the dust is guided into the suctioning aperture. A supporting stand is further included.

Abstract: A legume rehydration control apparatus and method employ a buoyancy restraint device, a buoyancy detection device, and a plurality of latch devices. The buoyancy restraint device is adapted to evenly submerge and hold dried legumes in a vat of rehydration liquid at a level below the level of the liquid in the rehydration vat and to allow the liquid to rise past the restraint device and above the level of the legumes through a sufficient distance to provide an ample supply of liquid to accommodate the rehydration of the dried legumes. The buoyancy detection device is connected to the buoyancy restraint device and adapted to detect the change in buoyancy of the legumes by monitoring the upward and downward movement of the restraint device relative to the rehydration vat and thereby the change in the buoyancy of the legumes which underlie the restraint device.