Automated syringe sampler

Details Automated syringe sampler Automated syringe sampler

1980-01-11

1981-06-23

Swisher, S. Clement

Measuring and testing

Vibration

By mechanical waves

7368452, G01N 114

Patent

active

042742854

ABSTRACT:
The invention is housed within a housing 11 and positionable within a test fluid medium where pump 23 causes continuous test fluid flow therethrough via inlet filters 29 and conduit 27. A plurality of sampling devices 25 are disposed on rack 16 slidably received in housing 11 and are responsive to a remote signal received through antenna 32 to receiver 60 to activate circuitry elements. When activated the circuitry provides power individually, collectively or selectively to servo mechanisms 56 thereby moving actuator arm 52 and its attached jawed bracket 51 supporting evacuated tube 46 toward stationary needle 39. One open end of needle 39 extends through the sidewall of conduit 27 to the interior thereof and the other open end is maintained within protective sleeve 41 supported by bifurcated bracket 49. Septum 46 is punctured by the open end of needle 39 contained within protective sleeve 41 and a sample of the fluid test medium in conduit 27 flows through needle 39 and is transferred to tube 46. The signal to servo 56 is then reversed and actuator arm 52 moves tube 46 back to its original position permitting septum 45 to expand and seal the hole made by needle 39. Jawed bracket 51 is pivotally attached to actuator arm 52 as shown in FIGS. 3 and 4 to facilitate replacement of tubes 46.

REFERENCES:
patent: 3001403 (1961-09-01), Edwards
patent: 3696806 (1972-10-01), Sausse
patent: 3765402 (1973-10-01), Grabhorn
patent: 3884081 (1975-05-01), Griffith
patent: 4079729 (1978-03-01), Cornell

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