The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 29, 2000
Filed:
Jul. 06, 1998
Applicant:
Inventors:
Hans Georg Conrads, Barleben, DE;
Volkhard Klupsch, Erfurt, DE;
Assignee:
PROMECON Prozess- und Messtechnik Conrads GmbH, Barleben, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N / ;
U.S. Cl.
CPC ...
73 6141 ;
Abstract
A method of determining the quantity of particulate matter suspended in a carrier gas in a pipe by measuring the frequency shift over a substantially linear range of an attenuation curve below the cut-off frequency for wave propagation, the curve being derived from measuring the attenuation of an electric field established in a conductive pipe substantially free of wave propagation.