Patent · US Expired

Optimum fixed angle centrifuge rotor

US5024646A · kind A · utility

5Cited by
8References
20Claims
0Family size

Assignee

Inventors

Key dates

Filing dateOct 6, 1989
Grant dateJun 18, 1991
Priority date
Expiry dateOct 6, 2009

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB04B5/0414
  • WIPO fieldChemical engineering
  • WIPO sectorChemistry

Abstract

A centrifuge rotor and method for gradient density separation which supports a generally cylindrical volume of sample solution with its axis inclined to the spin axis at an angle which is optimized for maximum separation efficiency while reducing contamination by undesirable centrifugates upon reorientation of the desirable centrifugates. The optimum angle is determined based on the relationship .theta.=Tan.sup.-1 (D/15L).sup.0.5 where D and L are respectively the diameter and length of the cylindrical volume of the sample solution and .theta. is the angle of inclination.

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