Patent ID: 8337580

Claim:
A debris separator comprising: a first chamber that separates debris from debris-borne airflow and a second chamber that collects the debris; wherein the first chamber comprises a shroud, an input port having an inlet and adapted to connect to a debris source, an output port whereat a reduction in pressure is caused with respect to a pressure at said input port, and a barrier; whereby debris-borne airflow is caused to enter the first chamber through the input port by the reduction in pressure facilitated at the output port; said shroud having an upper portion and an outward sloping sidewall having a similarly sloping inner surface; said input port passing through the shroud and configured to direct the debris-borne airflow through the inlet tangential to the inner surface and parallel to the barrier; said output port passing through the upper portion and functioning to evacuate cleaned airflow from the first chamber; said barrier situated below and adjacent the inlet and having an upper surface and a peripheral opening adjacent the inner surface and functioning to reduce turbulence in the second chamber; whereby the sloping inner surface imparts force vectors having a y-component on the incoming debris thereby separating it from the airflow and directing it through the peripheral opening into the second chamber.