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. 22, 2021
Filed:
Jan. 23, 2019
Dennis M. Anderson, Carson City, NV (US);
Stephan R-k Fuelling, Reno, NV (US);
Dave B Straley, Incline Village, NV (US);
Willian Ehni, Carson City, NV (US);
Dennis M. Anderson, Carson City, NV (US);
Stephan R-K Fuelling, Reno, NV (US);
Dave B Straley, Incline Village, NV (US);
Willian Ehni, Carson City, NV (US);
ELECTRICAL DENSITY GAUGE, LLC, Carson City, NV (US);
Abstract
Test apparatus for testing porous material such as used in roadway base or building foundations may be deployed in the field at various test sites. The test apparatus includes electrodes that contact the porous material under test and a sensor unit that supplies electromagnetic signals to the porous material. Response signals reveal electrical parameters such as complex impedance which can be equated to material properties such as density and moisture content. Reference may be made to empirical correlations made in laboratory tests using the same test apparatus to enable the effects of the test apparatus on the measurement to be accounted for. The electrodes may include flexible coplanar electrodes that reduce air gaps when in contact with the porous material.