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:
Mar. 17, 1987
Filed:
Jan. 13, 1986
Arthur H Waldie, Organ, NM (US);
Marvis N Gillum, Las Cruces, NM (US);
James M Wilkes, Las Cruces, NM (US);
Abstract
Physical properties relating to permeability and porosity of a material in a conveying fluid medium are determined in a device designed to measure the pressure differential between a first stream of fluid applied directly to the material in the medium and a second stream applied to a referencing plenum containing only the medium. The system is sensitive to the component of flow resistant imparted by the material itself without measuring the pressure drop across the entire thickness of material. The invention finds particular application in determining the permeability of cotton at various stages of the ginning operation for the ultimate purpose of monitoring and controlling the moisture content.