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:
Dec. 14, 1993
Filed:
Jan. 30, 1992
Stig Bystedt, Uddevalla, SE;
Orvar Toreskog, Alingsas, SE;
Stena Rederi Aktiebolag, Gothenburg, SE;
Abstract
A hull intended for multi-hull vessels for goods and passenger transport at speeds of, e.g., 30-50 knots is characterized in that the vertical distance from the base line of the hull to the center-of-gravity point of the volume of the underwater body of the hull, up to a water line corresponding to a normal hull draft, is over 55% of the hull draft defined between the base line (BL) and the water line (T) in the case of the stern half of the hull extending between the stern and midships. The hull is also characterized in that the vertical position of the center-of-gravity point of the volume of the forward half of the hull, located beneath the water line and extending between the midships and the forward part of the hull, is less than 55% of the draft, and in that the distance between the base line (BL) and the center-of-gravity point of the frame area beneath the water line (T) at a position corresponding to 75% of the total length of the underwater body of the hull, calculated from the stern, is less than 55% of the draft.