Patent ID: 7451687

Claim:
A nutating pump for creating pressure or a vacuum, said nutating pump comprising: a housing; a center support positioned within said housing, said center support including a semi-spherical recess; a drive shaft adapted to be connected to an electric motor; an eccentric adapted to be connected to said drive shaft; a ball adapted to form a ball joint and to be positioned within said semi-spherical recess of said center support; said center support includes a plurality of prongs to assist in retaining the position of said ball; a nutating yoke positioned within said housing, said yoke having a semi-spherical recess adapted to accept said pivot ball; said nutating yoke adapted to be connected to said eccentric, such that rotation of said eccentric causes said yoke to move about said ball; a connecting rod connected to said yoke; a piston connected to said connecting rod; a cylinder adapted to accept said piston; and wherein movement of said yoke about said ball causes said piston to reciprocate within said cylinder.