Non-leaking non-dripping liquid jet pump

Details Non-leaking non-dripping liquid jet pump Non-leaking non-dripping liquid jet pump

2005-09-06

2005-09-06

Kaufman, Joseph A. (Department: 3754)

Dispensing

With discharge assistant

With movable nozzle interconnected therewith

C222S149000, C222S322000

Reexamination Certificate

active

06938803

ABSTRACT:
A liquid jetting pump of the present invention is constructed such that an intra container liquid is sucked into a cylinder3through a suction valve9by moving a vertically movable member4up and down, and the intra cylinder liquid is jetted out of a nozzle29through a discharge valve31from a stem28.A plurality of ribs10are protruded in a peripheral direction from a lower edge part within the cylinder. Engagement recessed portions11are formed in inner parts of the upper surfaces of the ribs. A lower edge of a coil spring38for biasing the vertically movable member4is secured to each of the engagement recessed portions11,thereby permitting a flow of liquid on both sides of the lower edge of the spring internally externally.

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