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. 27, 2001
Filed:
Feb. 17, 1999
Applicant:
Inventor:
Eiichi Ishigaki, Kagawa-ken, JP;
Assignee:
Ishigaki Company Limited, , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B63H 1/100 ;
U.S. Cl.
CPC ...
B63H 1/100 ;
Abstract
Water jet ejection nozzles (,) different in ejection bore diameter or controllable of ejection bore diameter are arranged in a vertically spacing manner and fluid paths connected to the ejection nozzles are provided with open-close valves (,) to be individually controlled, or a water jet ejection nozzle (,) having a controllable ejection bore diameter is vertically driven, for water jet propulsion to be in accordance with a varied draft position of a vessel.