Patent · US Expired

Method of dispensing a liquid reagent

US5741554A · kind A · utility

138Cited by
9References
8Claims
0Family size

Assignee

Inventor

Key dates

Filing dateJul 26, 1996
Grant dateApr 21, 1998
Priority date
Expiry dateJul 26, 2016

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG01N2035/1041
  • WIPO fieldMeasurement
  • WIPO sectorInstruments

Abstract

A method for dispensing precise quantities of reagents is disclosed including the steps of providing positive displacement syringe pump in series with a dispenser, such as a solenoid valve dispenser. The pump is controlled by a stepper motor or the like to provide an incremental quantity or continuous flow of reagent to the dispenser. The dispenser is operated in accordance with predetermined parameters to dispense droplets of reagent onto a target substrate at the metered flow rate.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.