US 6,206,240 B1 · Liquid chemical dispensing system with pressurization

Abstract

The present invention is a system for handling high purity liquid and a method for the same. The system has a container with a mouth. The container is configured to hold liquid. A cap is coupled with the mouth of the container. A connector is coupled with the cap. The connector has a connector head and a probe extending from the connector head. The probe is insertable through the cap and through the mouth into the container. The probe has a flow passage. The system also has a pressurization source that communicates with the container. Pressure delivered from the source acts upon the container forcing liquid out of the container through the flow passage in the probe. There is also a pressurization port communicating with the connector, the cap, and the pressurization source. Pressure from the pressurization source is delivered to the container when the cap and the connector are properly mated. Pressure from the pressurization source is not delivered to the container when the cap and the connector are not mated.

Claims18

Dependent claims

A method of handling high purity liquids, the method comprising:

providing an outer container having a mouth that communicates with an interior of the container;
positioning an inner container within the outer container such that a space is defined between the outer and inner containers, and such that the inner container communicates through the mouth;
filling the inner container with a liquid;
attaching a cap over the mouth;
coupling a connector to the cap, wherein the connector includes a probe defining a liquid passage terminating within the interior of the inner container;
coupling a reservoir to the connector;
and
pressurizing the space between the inner and outer containers thereby dispensing liquid from the container through the probe and into the reservoir.

5 more elements

A high purity liquid handling system comprising:

a container having a mouth and configured to hold liquid;
a cap for coupling with the mouth;
a connector for coupling with the cap, the connector further comprising:
a connector head;
and
a probe extending from the connector head and insertable through the cap and through the mouth into the container, the probe having a flow passage therein;
a reservoir coupled to the connector and communicating with the flow passage of the probe, the reservoir configured to contain liquid;
and
a pressurization source communicating with the container such that pressure delivered from the source acts upon the container forcing liquid out of the container through the flow passage in the probe into the reservoir.

6 more elements

Dependencies are inferred from the claim text.

Liquid chemical dispensing system with pressurization

Life of this patent

Liquid chemical dispensing system with pressurization

Life of this patent

Abstract

Claims18