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. 19, 2002
Filed:
Feb. 23, 2000
Sherif Safwat, Davis, CA (US);
Valentin G. Perevoshchikov, Kaliningrad, RU;
OTTR Ultra-Low-Drag, Ltd., Cayman Islands, US;
Abstract
Mesh bars ( ) of a trawl ( ) include at least a portion having a corkscrew-shaped pitch which exhibits a hydrofoil-like effect. Such mesh bars ( ) are preferably formed from a material having a substantially incompressible cross-sectional shape. By appropriately selecting the lay and leading edge of mesh bars ( ), movement of the trawl ( ) through the water entrained environment creates a pressure differential and lift across that portion of mesh bars ( ) which exhibit the hydrofoil-like effect. The lift thus created increases performance characteristics of the trawl ( ) including increased trawl volume, improved trawl shape, and reduced vibration, noise, and drag. Obtaining the greatest improvement of trawls ( ) requires controlling a pitch range for twisted product strands (e.g. twisted ropes) ( ), and for straps ( ) forming mesh bars ( ). For straps ( ), control of a width to thickness ratio also significantly affects performance of the trawl ( ).
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile