Patent · US Expired

Liquid extraction apparatus

US5517867A · kind A · utility

23Cited by
22References
4Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJul 15, 1994
Grant dateMay 21, 1996
Priority date
Expiry dateJul 15, 2014

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG01N2035/1086
  • WIPO fieldMeasurement
  • WIPO sectorInstruments

Abstract

An apparatus is provided for identifying each of a predetermined plurality of liquid containers, some of which are stoppered and others of which are open-mouthed and for extracting liquid therefrom. The apparatus comprises an upper arm and a lower arm and a sensor responsive to relative motion therebetween, relative motion between the arms causing a container identity signal representative to be generated. A single needle is used to penetrate stoppers when present and extract liquid from the container.

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