The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 13, 1982
Filed:
Nov. 03, 1980
Kanji Nakatsu, Kingston, CA;
Queen's University at Kingston, Kingston, CA;
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.