Patent · US Expired

Luminometers with sample container displacement controlled by ramped abutment

US5086233A · kind A · utility

75Cited by
3References
12Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJan 22, 1991
Grant dateFeb 4, 1992
Priority date
Expiry dateJan 22, 2011

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG01N21/76
  • WIPO fieldMeasurement
  • WIPO sectorInstruments

Abstract

A luminometer comprises a body which is formed with a bore for receiving a sample container and a cavity communicating with the lower end of the bore. A control device having a part-circumferential ramp is rotatable within the cavity for displacing the sample container along the bore to and from a test position in which the sample container is exposed to a photo-multiplier device. The control device is rotated by a cap which is coupled to the control device and which covers the upper end of the bore in light-tight manner as the control device lowers the sample container to the test position.

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