Method and apparatus for metering liquid

Claim 1

A METERING DEVICE WITH MEANS FOR INDUCING CONTROLLED RATE OF FEEDING THEREFROM, COMPRISING: (A) A CONTAINER ENCLOSING SOLUTION DESIRED TO BE METERED, SAID CONTAINER CAPABLE OF BEING PUNCTURED; (B) A PROBE FOR INSERTION WITHIN SAID CONTAINER, SAID PROBE CONSISTING OF A CYLINDRICAL BODY PORTION AND AN END PORTION TAPERING INWARDLY THEREOF TO DEFINE A TIP, SAID CYLINDRICAL AND TAPERING PORTIONS CONTAINING AN AXIAL PASSAGEWAY EXTENDING THROUGHOUT THE ENTIRE LENGTH OF SAID PROBE AND TERMINATING IN A FIRST OPENING AT SAID TIP, TOGETHER WITH SECONDARY PASSAGE MEANS LOCATED WITHIN SAID CYLINDRICAL PORTION IN COMMUNICATION WITH SAID AXIAL PASSAGEWAY AND TERMINATING IN AT LEAST ONE SECOND OPENING ALONG THE OUTSIDE OF SAID CYLINDRICAL PORTION; (C) A CAPILLARY TUBE HAVING A RECEIVING END AND A DISCHARGE END WITH OPENING, SAID RECEIVING END ATTACHED TO SAID CYLINDRICAL PORTION OF SAID PROBE AND IN COMMUNICATION WITH SAID AXIAL PASSAGEWAY CONTAINED THEREIN; (D) FIRST REMOVABLE SEALING MEANS ATTACHED TO SAID PROBE SO AS TO BLOCK SAID FIRST OPENING OF SAID AXIAL PASSAGEWAY AT SAID TIP AS WELL AS SAID SECOND OPENING OF SAID CYLINDRICAL PORTION; (E) SECOND MOVABLE SEALING MEANS ATTACHED TO SAID DISCHARGE END OF SAID CAPILLARY TUBE SO AS TO BLOCK SAID OPENING OF SAID DISCHARGE END; AND (F) A LIQUID OTHER THAN SAID SOLUTION CONTAINED WITHIN SAID CAPILLARY TUBE, SUCH THAT AFTER SAID FIRST SEALING MEANS IS REMOVED AND SAID PROBE IS INSERTED WITHIN SAID CONTAINER AND SAID SECOND SEALING MEANS IS REMOVED, THE DOWNWARD PASSAGE OF SAID LIQUID THROUGH SAID CAPILLARY TUBE INDUCES SUBSEQUENT PASSAGE OF SOLUTION FROM SAID CONTAINER DOWNWARDLY THROUGH SAID CAPILLARY TUBE TO INTENDED POINT OF USE.