Modified siphons for improving metering precision

Details Modified siphons for improving metering precision Modified siphons for improving metering precision

2011-08-16

2011-08-16

Ludlow, Jan M (Department: 1773)

Chemical apparatus and process disinfecting, deodorizing, preser

Analyzer, structured indicator, or manipulative laboratory...

Means for analyzing liquid or solid sample

C436S045000, C436S180000

Reexamination Certificate

active

07998411

ABSTRACT:
The present invention provides centrifugal rotors for delivering a premeasured volume of liquid to a chamber in the rotor. In particular the rotors comprise siphons for delivering a premeasured volume of liquid between a first and a second chamber in the rotor. The siphons of the invention are designed such that the inlet of the siphon on the first chamber is radially outward of the siphon outlet on the second chamber. The first chamber is emptied to a level equivalent to the radial position of the siphon outlet.

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