Patent · US Expired

Machine for measuring sizes of particles and for determining color differences in a substance

US6058770A · kind A · utility

7Cited by
4References
14Claims
0Family size

Assignee

Inventor

Key dates

Filing dateOct 13, 1998
Grant dateMay 9, 2000
Priority date
Expiry dateOct 13, 2018

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG01B21/08
  • WIPO fieldMeasurement
  • WIPO sectorInstruments

Abstract

A machine is described for performing a draw-down operation in which a carriage for supporting a scraper is mounted on the base so as to travel along it, an electric motor is coupled to the carriage for moving it and a scraper is pivotally mounted on said carriage with a means for pushing the scraper against the top of the base with a selectable force.

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