Collector controller for chromatograph

Details Collector controller for chromatograph Collector controller for chromatograph

1980-11-03

1982-07-13

Hartary, Joseph W.

Recorders

Combined with external recorder operating means

Well logging

141 94, 73 611C, G01D 900

Patent

active

043397590

ABSTRACT:
An electro-mechanical controller for a fraction collector for a liquid chromatograph in which a conventional strip chart recorder pan holder guide rail is provided with a slider which is pulled along by a contact bar mounted on the pen holder or pushed by the pen holder depending on the direction of travel. The L-bar and pen holder are electrically interconnected to sense the travel of the pen holder and generate an output signal which triggers a timer, the output signal of which fires a one-shot integrated circuit the output signal of which in turn fires a free running timer and time delay circuit to permit time for the solution of the detected peak to travel from the detector to the fraction collector. The output signal from the free running timer and time delay triggers a one-shot IC the output signal of which is fed to an event marker and an integrated circuit inverter controlling the movement of the fraction collector device.

REFERENCES:
patent: 3765461 (1973-10-01), Keck
patent: 4064512 (1977-12-01), Durrum

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