Method of metering a fluid using a multi-mode differential fluid displacement pump
AssigneeDRD Diluter Corporation
InventorsHumayun Qureshi, Stanley M. Liffmann, John D. Czaban
Life of this patent
Estimating the term…
Abstract
A measured amount of a first fluid is metered into a measured amount of a second fluid by a method where a fluid is confined within a first chamber and a plunger of predetermined volume is mechanically moved into the chamber to displace a first measured amount of fluid after which a second plunger is mechanically moved into a defined volume of the chamber to displace a second volume of fluid therefrom different from the first volume whereupon the first and second volumes can be mixed in predetermined proportions.
Claims8
A method of metering a measured amount of a first fluid into a measured amount of a second fluid comprising,
- confining a fluid within a first chamber of defined volume,
- mechanically moving a first displacement solid into said defined chamber volume to displace a first measured amount of said confined fluid therefrom,
- mechanically moving a second displacement solid into said defined chamber volume to displace a second volume of said confined fluid therefrom different from said first volume whereupon said first and second volumes can be mixed in predetermined proportion.
Dependencies are inferred from the claim text.