Patent ID: 6979185

Claim:
An improved bi-rotational gear pump generally comprising a generally circular or annular gear housing defining a central cavity; adapted and sized to receive a pair of intermeshing gears carried axially by drive means, rotating in a “cw” or “ccw” direction and thereby pumping liquid through said pump depending upon the rotation of said drive means, a pair of generally circular cover members situated concentrically in flush abutment, on either side of said gear housing, a pair of generally circular end-cap members in concentric flush abutment on either side of said cover members; said cover members and said end cap members each being machined so as to define together a plurality of interconnected, internal passageways, an inlet means for fluid leading to said pair of intermeshing gears, and two outlet means for pumped fluid and means for directing said fluid to one or other of said outlet means depending on the direction of rotation of said intermeshing gears.