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:
Aug. 27, 1991
Filed:
Jul. 18, 1990
Applicant:
Inventors:
Shridhar Iyer, East Lansing, MI (US);
Lawrence T Drzal, Okemos, MI (US);
Assignee:
Board of Trustees operating Michigan State University, East Lansing, MI (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
D01D / ;
U.S. Cl.
CPC ...
28283 ; 28220 ; 28282 ; 19 6 / ; 19-046 ; 427185 ; 427 57 ;
Abstract
A method and system for spreading a tow of fibers (12) using the acoustic energy from a speaker (16a) or other vibrating device for a gaseous medium over which the tow passes as the fibers zig-zag between rods (16d) is described. The spread two of fibers are produced at high speed with uniform spacing and are used to make composites with plastics.