US 8,911,692 B2 · Liquid analyzer device and related method

Abstract

An agitator (1) is for a liquid analysis system (3, 50). It has a chamber (5) for reception of a sample liquid. A passageway (6) from the bottom of the chamber (5) ends in an agitator chamber (7). A side wall of the agitator chamber (7) is formed by a diaphragm (8). The diaphragm (8) is connected to an electric motor (9) with an eccentric drive for reciprocating movement of the diaphragm (8). A gas inlet (10) in the opposite side of the body (2) is connected by a passageway (11) to the agitator chamber (7). The agitation chamber has a domed internal face opposed to the diaphragm, by which about 10% of the agitation chamber (7) volume is displaced by the inward movement of the diaphragm (8). Also, advantageously, there is a uniform application of displacement force within the agitation chamber (7) by virtue of the domed internal surface.

Claims12

Dependent claims

An agitator for a liquid analysis system, the agitator comprising:

a liquid sample chamber for containing a liquid,
an agitation chamber linked by a liquid passageway to the liquid sample chamber,
a gas inlet linked by a gas passageway to the agitation chamber,
a reciprocating member mounted for contact with liquid and gas in the agitation chamber, wherein,
the agitator further comprises a drive means connected to the reciprocating member, wherein the drive means displaces the reciprocating member to mix incoming gas from the gas inlet and liquid from the liquid sample chamber in the agitation chamber and to push the mixture back to the liquid sample chamber, via the liquid passageway, and
the capacity of the liquid sample chamber is in the range of 1 ml to 25 l.

3 more elements

Dependencies are inferred from the claim text.

Liquid analyzer device and related method

Life of this patent

Liquid analyzer device and related method

Life of this patent

Abstract

Claims12