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:
May. 14, 2019
Filed:
Sep. 29, 2017
David B. Coakley, Alexandria, VA (US);
David B. Coakley, Alexandria, VA (US);
The United States of America as represented by the Secretary of the Navy, Washington, DC (US);
Abstract
The invention is a chevron ribbon fairing that reduces hydrodynamic drag on marine cables towed by a vessel. The fairing is the shape of a 'V,' with an angle between the legs of the 'V' chosen on the basis of the predicted cable angle relative to the flow. The chevron angle is twice the cable angle. The tip of chevron ribbon fairing is woven into the outer armor strands of the steel cable or molded to a jacketed cable. When the cable is at shallow angles to the fluid flow, the fairing aligns with the flow, a presents a reduced cross sectional area to the fluid flow behind the towed cable. The chevron design allows the ribbon to naturally align with the fluid flow even as the ribbon rotates about its axis. This ensures a reduction in tangential drag regardless of the level of cable tension.