Patent · US Expired

Ultrasonic flowmeter

US4173889A · kind A · utility

11Cited by
3References
2Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMar 20, 1978
Grant dateNov 13, 1979
Priority date—
Expiry dateMar 20, 1998

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB60G2401/176
  • WIPO fieldMeasurement
  • WIPO sectorInstruments

Abstract

An ultrasonic flowmeter for measuring the rate of flow of a fluid, comprising a conduit and two acoustic probes placed on a line inclined with respect to the axis of said conduit. The active end of the probes are bathing in an annular chamber formed by a sleeve extending the inner wall of the conduit in the measuring zone and a swell in the inner wall of the conduit, and in which the fluid may penetrate.

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