Chemical apparatus and process disinfecting – deodorizing – preser – Analyzer – structured indicator – or manipulative laboratory... – Means for analyzing liquid or solid sample
Reexamination Certificate
2011-08-02
2011-08-02
Levkovich, Natalia (Department: 1773)
Chemical apparatus and process disinfecting, deodorizing, preser
Analyzer, structured indicator, or manipulative laboratory...
Means for analyzing liquid or solid sample
C422S050000, C422S105000
Reexamination Certificate
active
07988916
ABSTRACT:
An apparatus and method for measuring a range of small volumes of fluids to a high degree of precision, said apparatus including: a) a single reaction chamber (20); b) a piston (30) operable within said chamber to selectively and precisely vary the internal volume of said chamber; c) a first inlet (41) to said chamber in communication with one or more fluid sources of which a portion of a first fluid of said one or more fluids is adapted to be drawn into said chamber; d) at least one further inlet (43) including a second inlet to said chamber in communication with one or more fluid sources of which a portion of a second fluid of said one or more fluids is adapted to be drawn into said chamber; and e) a sealable outlet (45), wherein said piston is adapted to progressive draw said portion of a second fluid into said chamber until either accurare metering of a volume of said first or second portion of fluid is achived or a reaction involving said first and second portions in said chamber (such as a titration reaction) is completed.
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Levkovich Natalia
TraskBritt
LandOfFree
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