Measuring and testing – Gas analysis – Gas chromatography
Reexamination Certificate
2006-09-19
2008-08-12
Larkin, Daniel S (Department: 2856)
Measuring and testing
Gas analysis
Gas chromatography
C095S082000, C095S087000, C096S101000, C219S678000, C219S679000, C219S759000, C392S416000, C422S089000
Reexamination Certificate
active
07409850
ABSTRACT:
An improved gas chromatograph system includes a radiant source, an insert located to receive an output of the radiant source, and an analytic column wound on a concave surface of the insert so that successive coils of the wound analytic column are in direct contact with each other and exert an outward pressure on the concave surface of the insert such that the outward pressure minimizes a gap between the analytic column and the concave surface of the insert so as to minimize thermal gradients and maximize heat transfer to the analytic column.
REFERENCES:
patent: 5808178 (1998-09-01), Roundbehler et al.
patent: 5939614 (1999-08-01), Walters et al.
patent: 6316759 (2001-11-01), Gaisford et al.
Agilent Technologies , Inc
Larkin Daniel S
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