Patent ID: 8267116

Claim:
An anti-backflow system for a compressor comprising: a hollow, cylindrical body; a flanged ring connected to an end of the cylindrical body, the flanged ring extending from the cylindrical body; a conical portion having a plurality of openings and being configured with a larger diameter end and a smaller diameter end, the smaller diameter end of the conical portion being adjacent to the end of the cylindrical body having the flanged ring, the larger diameter end of the conical portion being attached to the cylindrical body adjacent to an end of the cylindrical body opposite the flanged ring; a slide stem secured to the smaller diameter end of the conical portion and extending from the smaller diameter end of the conical portion toward the larger diameter end of the conical portion; a conical poppet being mounted on the slide stem, the conical poppet being movable between a first position to prevent fluid flow through the cylindrical body and a second position to permit fluid flow through the cylindrical body; a stop, the stop being configured to limit the conical poppet to movement between the first position and the second position; a strainer mechanism disposed adjacent the cylindrical body and being configured to trap dirt particles and debris to prevent the dirt particles and debris from passing through the cylindrical body; and wherein the conical poppet moves along the slide stem between the first position and second position using only fluid flow entering the cylindrical body and the conical poppet is moved into one of the first position or the second position in response to the direction of fluid entering the cylindrical body.