Patent · US Expired

Solvent extraction apparatus

US5961787A · kind A · utility

5Cited by
11References
14Claims
0Family size

Assignee

Inventors

Key dates

Filing dateDec 16, 1997
Grant dateOct 5, 1999
Priority date
Expiry dateDec 16, 2017

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10S203/11
  • WIPO fieldMeasurement
  • WIPO sectorInstruments

Abstract

A solvent extraction apparatus which includes a heating plate, a vessel for containing a solvent, an extraction thimble to obtain a sample to be extracted from said vessel and a cooler for condensing evaporated solvent vapors. The cooler is connected to the vessel for containing the solvent, preferably by an adaptor. A lifting rod is provided which passes through the cooler which, at its lower portion, is provided with a drip rim on which the extraction thimble is detachably fixed. The thimble can be moved vertically by the lifting rod and the flow of solvent into and out of the cooler can be regulated by the lifting rod.

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