Abstract: The present invention provides a rotary feeder system having a rotor housing with an intake opening and means for discharging material spaced apart side walls. A rotor is positioned with its radially extending blades disposed within the rotor housing and its two ends of its shaft each extending through an aperture in one of the side walls. The shaft bearing and interconnection to the rotating means are each disposed outwards of the rotor housing and the apertures are sealed about the rotor shaft by a sealing assembly comprising a washer, a seal having a first and second ring wherein the second ring extends inward beyond the inner circumference of the first, said ring merging into a flange pressing upon said washer, and a retaining plate which bears against the second ring, tightening it against the washer. The washer and second ring of the seal are preferably formed of tetrafluoro-ethylene resin, and all joints between components within the rotor housing are welded to fill any crevices.

Abstract: A vacuum cleaner and refuse and debris collection and disposal device and system utilizing a vacuum cleaning unit, with intake for both wet and dry materials, utilizing a motor-driven blower to create a vacuum in a sealed vacuum chamber and a separate internal debris collection container which is removable without disturbing the sealing properties of the vacuum chamber. The container is alternatively emptyable or disposable, thereby providing minimal interruption in the operation of the vacuum cleaner unit, no relocation of the unit when dumping is necessary and the use of replaceable, or disposable internal collection containers subject to wear and tear without disturbing the sealing properties of the vacuum chamber.