Patent · US Expired

Process and device for the measurement of a physical quantity of an extruded element

US4416541A · kind A · utility

8Cited by
8References
6Claims
0Family size

Assignee

Inventor

Key dates

Filing dateApr 30, 1981
Grant dateNov 22, 1983
Priority date—
Expiry dateApr 30, 2001

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB29C2948/92952
  • WIPO fieldMeasurement
  • WIPO sectorInstruments

Abstract

For the measurement of a dimension of an object in a liquid, windows are provided in a vessel containing the liquid and the object, and parts of an optical measuring apparatus for the determination of the dimension of the object are arranged in the region of the window. This measuring arrangement can be fitted on to an existing installation without substantial expense. An open vessel, into which the object must be inserted, thus remains freely accessible. Since the window is constantly in contact with the liquid, no optical interruptions can occur which would falsify the measurement.

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