Pumps – Motor driven – Adjustable motor and pump rotor unit or relatively...
Reissue Patent
2004-09-23
2008-10-14
Kramer, Devon (Department: 3746)
Pumps
Motor driven
Adjustable motor and pump rotor unit or relatively...
C222S251000, C222S388000
Reissue Patent
active
RE040539
ABSTRACT:
In a fluid pump and cartridge assembly, a cartridge includes a material inlet port, a material outlet port, and a feed screw. The feed screw delivers fluid to be dispensed from the fluid inlet to the outlet port. The fluid inlet is preferably elongated in a direction along a longitudinal axis of the feed screw to enhance consistency in material flow through the cartridge. The feed screw is preferably driven by a closed-loop servo motor to achieve high-performance dispensing resolution. The assembly is preferably compatible with fixed-z and floating-z cartridges.
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DL Technology LLC
Dwivedi Vikansha
Kramer Devon
Mills & Onello LLP
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