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:
Apr. 16, 2002
Filed:
Oct. 10, 2000
Applicant:
Inventors:
Charles H. Beauchamp, Jamestown, RI (US);
Christopher F. Hillenbrand, Portsmouth, RI (US);
Assignee:
The United States of America as represented by the Secretary of the Navy, Washington, DC (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B63H 2/546 ; B63H 2/122 ;
U.S. Cl.
CPC ...
B63H 2/546 ; B63H 2/122 ;
Abstract
A method and system is provided that improves the maneuverability of a marine vehicle having a lateral tunnel thruster. When the marine vehicle moves at a forward speed through water, a water flow having a fluid velocity moves through the thruster. The thruster's propeller is turned at a substantially constant rate of rotation and the fluid velocity in the tunnel is measured. The pitch angle of the propeller is adjusted based on the measured fluid velocity.