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US 2009/0014467 A1Published application
Liquid dispensing system with enhanced mixing
AssigneeMillipore Corporation
InventorsBrett M. Belongia, Robert C. Saunders
Life of this patent
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AssigneeMillipore Corporation
InventorsBrett M. Belongia, Robert C. Saunders
Estimating the term…
A dispense apparatus and system for dispensing suspensions or emulsions. The system ensures uniformity of distribution of the dispersed phase within the continuous-phase liquid by moving the fluid through the dispense cartridge, such as with a continuous or pulsating flow. In one embodiment, peristaltic pumps are positioned upstream and downstream of the dispense cartridge, in fluid communication with and forming a single loop with a fluid source. Circulation between the fluid source and the dispense cartridge is maintained. In a second embodiment, a pump circulates fluid into and out of the dispense cartridge and is also in fluid communication with a fluid source such as with a pinch valve to allow proper filling of the dispense cartridge from the fluid source. In a third embodiment, a reversing pump is placed between the dispense cartridge and fluid source to continually or continuously pump fluid into and out of the dispense cartridge.
A fluid dispensing apparatus for dispensing a predetermined volume of fluid, comprising a reservoir having an inlet and an outlet;
A fluid dispensing apparatus for dispensing a predetermined volume of fluid, comprising a reservoir in fluid communication with a fluid source, and a reversing pump in fluid communication with said fluid source and said reservoir for alternately pumping fluid into said reservoir from said fluid source and out of said reservoir to said fluid source.
A method of minimizing in a reservoir the separation of a two-phase fluid, comprising providing a supply source of said fluid, circulating said fluid in said reservoir by pumping a portion thereof out of said reservoir and back into said reservoir, and regulating the amount of said fluid in said supply source communicating with said reservoir.
A method of minimizing in a reservoir the separation of a two-phase fluid, comprising providing a supply source of said fluid in fluid communication with said reservoir, pumping said fluid from said source to said reservoir with a reversing pump operating in a first direction, and pumping said fluid from said reservoir to said source with said reversing pump operating in a second direction.
Dependencies are inferred from the claim text.