Mixing device for materials with large density differences

Patent · Sat Jan 01 00:00:00 EST 1994

OSTI ID:869446

Gregg, David W ^[1]

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1. Moraga, CA

An auger-tube pump mixing device for mixing materials with large density differences while maintaining low stirring RPM and low power consumption. The mixing device minimizes the formation of vortexes and minimizes the incorporation of small bubbles in the liquid during mixing. By avoiding the creation of a vortex the device provides efficient stirring of full containers without spillage over the edge. Also, the device solves the problem of effective mixing in vessels where the liquid height is large compared to the diameter. Because of the gentle stirring or mixing by the device, it has application for biomedical uses where cell damage is to be avoided.

• Research Organization: Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
• DOE Contract Number: W-7405-ENG-48
• Assignee: United States of America as represented by United States (Washington, DC)
• Patent Number(s): US 5338115
• OSTI ID: 869446
• Country of Publication: United States
• Language: English

Related Subjects

mixing
device
materials
density
differences
auger-tube
pump
maintaining
stirring
rpm
power
consumption
minimizes
formation
vortexes
incorporation
bubbles
liquid
avoiding
creation
vortex
provides
efficient
containers
spillage
edge
solves
effective
vessels
height
compared
diameter
gentle
application
biomedical
cell
damage
avoided
device provides
power consumption
mixing device
provides efficient
density differences
cell damage
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