Patent · US Expired

Short sample detection

US4130394A · kind A · utility

101Cited by
5References
20Claims
0Family size

Assignee

Inventor

Key dates

Filing dateOct 3, 1977
Grant dateDec 19, 1978
Priority date—
Expiry dateOct 3, 1997

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10T436/25625
  • WIPO fieldMeasurement
  • WIPO sectorInstruments

Abstract

A dilutor/dispenser system wherein a marker, e.g., an air bubble, is introduced at the probe inlet prior to each aspiration cycle, so as to be displaced along the probe system during such cycle. The location of the marker is detected at the end of the aspiration cycle, to indicate whether an appropriate liquid volume has been aspirated. The aspirated liquid, along with the marker and a predetermined volume of diluent, is subsequently dispensed. An alarm may be activated, if an improper volume has been aspirated.

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