Human waste collection system, for zero-gravity conditions, that automatically closes a used waste bag segment and provides an unused waste bag segment from operation of a seat and flush actuator

A human waste collection system, for zero-gravity conditions, the collection system comprising:

• a basin having a lower end that defines a lower plane and configured for being positioned against a floor and an upper end that is spaced apart from the lower end and displaced further from the plane than the lower end;
• a seat positioned at the upper end of the basin, the seat having a lid pivotally connected to the seat;
• a bag cassette disposed under the seat;
• and
• a compression ring that is movable within the basin to automatically pull an unused bag segment from the bag cassette, and push down used bags;
• the basin includes an upper portion that includes the upper end, a lower portion that includes the lower end, and a neck between the upper and lower portions of the basin;
• the compression ring is movable within the upper portion, between the upper end and the neck to urge the unused bag segment from the bag cassette;
• the upper and lower portions of the basin are frustoconical and narrow toward the neck;
• and
• the compression ring compresses around the unused bag segment as the compression ring moves from the upper end to the neck, to thereby move the used bag downwardly.