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:
Jun. 15, 1993
Filed:
Mar. 13, 1992
Applicant:
Inventors:
Arjo Harjula, Espoo, FI;
Pekka Salmi, Vantaa, FI;
Assignee:
Kvaerner Masa-Yards Oy, Helsinki, FI;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B63B / ;
U.S. Cl.
CPC ...
114 40 ;
Abstract
An icebreaking ship has a hull including a forward part and an aft part and a screw arrangement in the aft part of the ship. The screw arrangement is designed for propulsion of the ship in the forward direction and is turnable substantially in a horizontal plane, whereby the screw arrangement serves for steering the ship. The screw arrangement and the form of the hull of the ship are dimensioned and designed for allowing the ship to move in the aft direction in heavy ice conditions.