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. 04, 2015
Filed:
Mar. 17, 2014
Applicant:
Twin Disc, Inc., Racine, WI (US);
Inventors:
Philip Rolla, Bruzella, CH;
Marzio Porro, Como, IT;
Assignee:
Twin Disc, Inc., Racine, WI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F03B 3/12 (2006.01); B63H 1/28 (2006.01); F03B 13/26 (2006.01); B63H 1/18 (2006.01);
U.S. Cl.
CPC ...
B63H 1/28 (2013.01); F03B 13/264 (2013.01); B63H 2001/185 (2013.01); Y02E 10/28 (2013.01);
Abstract
A modifier may be used to prevent formation of a rooster tail when surface drive propellers are used with marine vessels. The modifier may be retractable by attaching it to the transom of the marine vessel or fixed-mounted by attaching it to the drive housing. The modifier changes the direction of the rooster tail so it flows substantially parallel to the surface of the water and hull of the marine vessel.