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:
Jun. 07, 2005
Filed:
Oct. 11, 2001
Wayne Stephen Holmes, Auckland, NZ;
Stephen Geoffrey Riley, Rotorua, NZ;
Wayne Stephen Holmes, Auckland, NZ;
Stephen Geoffrey Riley, Rotorua, NZ;
New Zealand Forest Research Institute Limited, Rotorua, NZ;
Industrial Research Institute Limited, Auckland, NZ;
Abstract
A generator () directs microwave signals to a waveguide () having a linear array of slots (), and the signals are received by measuring device (). The local permittivity or moisture content of material adjacent the waveguide (), such as a stack of timber, may be determined at each slot () via regression analysis. The total permittivity or moisture may be determined by averaging measurements obtained for both transmission directions of the waveguide (). The apparatus may be used for controlling drying parameters, such as drying time, for the material.