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:
Apr. 18, 1978
Filed:
Sep. 30, 1976
Applicant:
Inventor:
Willem J Naarding, Stad Delden, NL;
Assignee:
Hergeth KG Maschinenfabrik und Apparatebau, Dulmen, DT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N / ;
U.S. Cl.
CPC ...
73159 ;
Abstract
Method and apparatus for quantitatively and qualitatively determining the dust content of fibrous material, in which a representative sample of the fibrous material is opened to obtain individual fibers and release the dust contained therein. The individual fibers and fine dust are separated by a combination of gravity separation and air flow. Coarse dust is separated and collected incidental to the opening process. The dust quantity and quality are determined on a weight basis.