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. 31, 2020
Filed:
May. 31, 2018
Hexcel Corporation, Dublin, CA (US);
Adam Dust, Salt Lake City, UT (US);
Robert Loesch, Midvale, UT (US);
Harini Dasarathy, Huntsville, AL (US);
Rebecca Forsgren, West Valley City, UT (US);
HEXCEL CORPORATION, Dublin, CA (US);
Abstract
The filament count of a carbon fiber tow is increased by spreading and commingling the carbon filaments of a first tow with the carbon filaments of a second tow. The carbon filaments of the first and second tows are spread apart using a gas stream. The spread tows are aligned with each other and brought into contact as they pass over a grating in the presence of the same or a different gas stream to form an entangled tow. The entangled tow is then formed into a combined tow. The modulus and denier of the carbon filaments in the first and second tows may be the same or they can be varied to provide combined tows with a wide range of filament counts and filament combinations.