Measuring and testing – Sampler – sample handling – etc. – Conduit or passageway section capture chamber
Reexamination Certificate
2007-01-26
2010-11-02
Noland, Thomas P (Department: 2856)
Measuring and testing
Sampler, sample handling, etc.
Conduit or passageway section capture chamber
C073S061560, C073S061550, C137S625160
Reexamination Certificate
active
07823468
ABSTRACT:
A sample injector includes a rotary valve element with a straight passageway through it, which element may be rotated to connect a port communicating with a source of solvent with a port communicating with an inlet to a column. Another passageway connects two adjacent ports. The valve element may be rotated to one position in which it provides a straight path for sample to be injected, a second position in which it provides a path that connects a source of purge gas to the chromatographic system and a third position in which it provides a path that connects solvent to the column for preconditioning.
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Carney Vincent L.
Noland Thomas P
Teledyne Isco, Inc.
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