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:
Feb. 08, 1994
Filed:
Nov. 13, 1991
Applicant:
Inventor:
Hiromi Kinoshita, Shimonoseki, JP;
Assignee:
Nichimo Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A01K / ;
U.S. Cl.
CPC ...
43-97 ; 43 4313 ;
Abstract
A towable Otter Board having upstream facing flap portions is disclosed for use in trawl fishing applications. The flap portions are used to divert fluid flow from the concave lower board surface to the upper convex board surface which serves to shift a vortex formed proximate the upper board surface further downstream to a position closer to the trailing edge of the board which provides considerable improvement over the prior art by decreasing drag and increasing lift. A single wing and bi-plane version of the board is disclosed.