Patent · US Expired

Antenna device for injecting or extracting microwaves into/from tubular hollow bodies, and device for measuring mass flow by using antenna devices of this type

US7712381B2 · kind B2 · utility

13Cited by

6References

24Claims

0Family size

Assignee

Schenck Process LLC · US

Inventors

Bernd Allenberg · Karlsruhe, DE
Andreas Penirschke · Herborn, DE
Rolf Jakoby · Rosbach, DE

Key dates

Filing date	Nov 25, 2005
Grant date	May 11, 2010
Priority date	—
Expiry date	Apr 3, 2026

Classification

Technology area (CPC H)Electricity
CPC primaryH01Q1/38
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

An antenna arrangement for coupling high frequency electromagnetic waves into or out of a pipe-shaped hollow body includes two patch antenna elements that are located opposite one another and integrated in the pipe inner wall (5) of the hollow body (1), and have curved surfaces fitted to the curved longitudinal pipe inner wall of the hollow body (1). An apparatus for mass flow measurement includes at least two of such antenna arrangements axially spaced apart from one another in a conveyor pipe section.

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