Patent · US Active

Apparatus and method for detection and segregation of faulty cigarettes

US7793664B2 · kind B2 · utility

0Cited by

5References

21Claims

0Family size

Assignee

TEWS ELECTRONIK DIPL. ING. MANFRED TEWS · DE

Inventors

Rainer Herrmann · Hamburg, DE
Udo Schlemm · Hamburg, DE
Hendrik Richter · Hamburg, DE

Key dates

Filing date	Jun 28, 2006
Grant date	Sep 14, 2010
Priority date	—
Expiry date	Mar 11, 2029

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S131/908
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

Apparatus and method for detection and segregation of faulty cigarettes in a production/packaging installation for cigarettes having an apparatus by means of which faulty cigarettes are segregated from the conveyed sequence of cigarettes, wherein the apparatus and method use a generator and evaluation circuits for radio-frequency electromagnetic fields and use a sensor past whose end surface the ends of the cigarettes are passed and which applies the radio-frequency electromagnetic fields to the end surface of the sensor, whose size corresponds approximately to the size of the end surface of the cigarettes, with the changes in the electromagnetic fields as a cigarette passes being evaluated.

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