Patent · US Expired

Liquid sampling apparatus with retention means

US4563332A · kind A · utility

14Cited by
5References
11Claims
0Family size

Assignee

Inventors

Key dates

Filing dateApr 27, 1983
Grant dateJan 7, 1986
Priority date
Expiry dateApr 27, 2003

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB01L3/021
  • WIPO fieldChemical engineering
  • WIPO sectorChemistry

Abstract

An apparatus for preparing a sample of liquid for examination and analysis. The apparatus includes a tube closed at one end and open at the other, and a pipette dimensioned for insertion into the tube. The pipette has a sealing surface which is slightly smaller in diameter than the inside diameter of the tube. Protruding from the sealing surface is a rib which is aligned along the longitudinal axes of the pipette and which engages a portion of the inside wall of the tube to maintain the pipette in the tube.

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