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. 02, 1987
Filed:
Feb. 19, 1986
Applicant:
Inventor:
Donald M Lee, Huntington, WV (US);
Assignee:
Ashland Oil, Inc., Ashland, KY (US);
Primary Examiner:
Int. Cl.
CPC ...
B01F / ;
U.S. Cl.
CPC ...
366155 ; 366 30 ; 366 76 ; 366165 ; 366290 ; 366292 ;
Abstract
Disclosed is a method and apparatus for avoiding the clumping of fibers having diameters and lengths in certain ranges during dry blending of such fibers into a dry matrix material. The process comprises distributing fibers in a vaporous medium, and transporting fluidized fibers to a mixing zone containing a dry matrix material. Concurrently with stirring and blending of the dry matrix material with fluidized fibers, the fluidized fibers having been separated at least partially from a fluidized vapor are gradually introduced into the mixing zone. This process avoids the phenomena of 'balling' that otherwise occurs with certain fibers.