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:
May. 24, 2005
Filed:
Jun. 12, 2003
Rainer Herrmann, Hamburg, DE;
Manfred Tews, Hamburg, DE;
Udo Schlemm, Hamburg, DE;
TEWS Elektronik, Hamburg, DE;
Abstract
A device for testing the quality of rope-like materials in the form of yarns, rollings, fiber bands and the like employs a microwave resonator and devices for determining the displacement of the resonant frequency and the widening of the resonance curve due to the rope-like material present in the microwave resonator. Mechanical devices are provided for transporting the rope-like materials through the measuring volume of the microwave resonator. The microwave field is homogeneous in the measuring volume and the measuring device is a microwave generator constructed for measuring the mass per length and the moisture of the rope-like materials. Sensitivity of the device is improved by using metallic elements to concentrate the electromagnetic field in the measuring volume.