Measuring and testing – Sampler – sample handling – etc. – With heating or cooling
Patent
1983-05-23
1984-07-10
Swisher, S. Clement
Measuring and testing
Sampler, sample handling, etc.
With heating or cooling
7386373, 7386483, G01N 110
Patent
active
044585411
ABSTRACT:
An improved liquid sample injection valve having a metering rod for receiving a sample of a test liquid in a sample loading assembly and delivering that sample to a sample evaporating assembly that is connected to a gas chromatograph. In the sample loading assembly there is provided a sample chamber housing having an improved sealing and mounting arrangement that provides a high degree of thermal isolation between the sample loading and evaporating assemblies. A novel mounting arrangement for the metering rod allows the latter to be conveniently changed without disassembling the valve. The sample evaporating assembly is provided with a flow control element which minimizes deal volume and provides improved sample removal and evaporation characteristics.
REFERENCES:
patent: 3401565 (1968-09-01), Stoll et al.
patent: 3463012 (1969-08-01), McKinney et al.
patent: 3581573 (1971-06-01), Purcell et al.
patent: 3643511 (1972-02-01), Warncke et al.
patent: 4289029 (1981-09-01), Sampson et al.
patent: 4356733 (1982-11-01), Braunweiler
Deming Philip L.
Farren Carl A.
Beckman Instruments Inc.
Chapman, Jr. John E.
Harder P. R.
Jason E. C.
Steinmeyer R. J.
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