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:
Nov. 04, 1980
Filed:
May. 08, 1978
Applicant:
Inventors:
Hisataro Tachibana, Akashi, JP;
Hiromi Ono, Akashi, JP;
Assignee:
Kawasaki Jukogyo Kabushiki Kaisha, Kobe, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B63H / ;
U.S. Cl.
CPC ...
440 43 ; 60221 ; 114121 ;
Abstract
Water-jet propulsion unit for vessels which includes a water duct having an inlet and outlet portions and an impeller disposed in the water duct. The outlet portion has a variable outlet nozzle which can discharge water downwardly when desired to produce a lift force for lifting the stern of the vessel. The arrangement provides an improved rolling stability under a stationary condition and is also effective to decrease a drag force under the 'hump' condition.