Microprocessor controllable automatic sampler

Details Microprocessor controllable automatic sampler Microprocessor controllable automatic sampler

1981-12-01

1984-02-07

Swisher, S. Clement

Measuring and testing

Sampler, sample handling, etc.

Capture device

7386425, 422 64, 422 67, G01N 3506

Patent

active

044295847

ABSTRACT:
An apparatus for automatically establishing fluid communication between a probe and a plurality of containers presented in the sequence to a sampling position includes a container supported rack movable into and out of the sampling position. A probe holder supports the probe for movement into and out of the sampling position. A drive unit connects to the rack and probe holder for effecting and controlling the movements thereof. The drive unit includes a first pressure fluid operated motor actuable for moving the probe into and out of the sampling position for communication with a container thereat and a second pressure fluid operated motor actuable for causing the rack to move a desired one of the containers into the sampling position, the first and second pressure fluid operated motors being actuable independently of each other from a common source of pressure fluid. The apparatus is connectible to provide sequential samples for an analysis system, such as a high pressure liquid chromatography system. In a preferred embodiment the sampler apparatus includes an onboard microprocessor circuit programmable to control sequencing of the pressure fluid motors and timing of the chromatography system. This is in addition to an external computer for processing information resulting from analysis of the samples provided by the sampler apparatus.

REFERENCES:
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patent: 4253846 (1981-03-01), Smythe et al.
patent: 4259291 (1981-03-01), Smythe
patent: 4294126 (1981-10-01), Tomoff

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