A single-piston, multimode fluid displacement pump comprising an elongated chamber, a piston reciprocally mounted within the chamber, a driving mechanism axially aligned with the chamber and piston for accurately positioning the piston within the chamber so as to define a measured fluid displacement
A single-piston, multimode fluid displacement pump comprising an elongated chamber, a piston reciprocally mounted within the chamber, a driving mechanism axially aligned with the chamber and piston for accurately positioning the piston within the chamber so as to define a measured fluid displacement, and ports for aspirating and dispensing fluid.
대표청구항▼
A fluid displacement pump, comprising: (a) a housing, having a top wall, bottom wall, and side wall, the bottom wall and side wall each having an inner surface, the top wall, bottom wall, and side wall enclosing an interior therebetween, (b) means in the inner surface of the side wall for carrying a
A fluid displacement pump, comprising: (a) a housing, having a top wall, bottom wall, and side wall, the bottom wall and side wall each having an inner surface, the top wall, bottom wall, and side wall enclosing an interior therebetween, (b) means in the inner surface of the side wall for carrying a seal therein, (c) an elongated chamber, formed by the inner surface of the bottom wall, inner surface of the side wall, and the seal, having a piston reciprocally mounted therein, the piston sliding through the seal, (d) means for accurately positioning the piston within the chamber so as to measure a fluid displacement, wherein the positioning means further comprises a stepper motor and a lead screw, and (e) two ports for aspirating and dispensing fluid from the chamber wherein the positioning means is substantially axially aligned with the piston and chamber.
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