Patent · US Expired

Apparatus for short-duration tests for determining the flowability of powders

US4181023A · kind A · utility

20Cited by
5References
7Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJun 12, 1978
Grant dateJan 1, 1980
Priority date
Expiry dateJun 12, 1998

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG01N11/14
  • WIPO fieldMeasurement
  • WIPO sectorInstruments

Abstract

For the short-duration determination of the flowability of rubber powder after storage, the rubber powder is poured into a cylindrical container in which is immersed a resistance element. This element displays an analogue value via a torque measuring device when there is relative rotation between the container and the resistance element.

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