Patent · US Expired

Watercraft

US6516739B2 · kind B2 · utility

4Cited by

10References

9Claims

0Family size

Assignee

Voith Schiffstechnik GmbH & Co. KG · DE

Inventors

Jens-Erik Bartels · Heidenheim, DE
Harald Gross · Neuschönborn, DE
Dirk Jurgens · Heidenheim, DE

Key dates

Filing date	Apr 12, 2001
Grant date	Feb 11, 2003
Priority date	—
Expiry date	Apr 12, 2021

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB63H5/08
WIPO fieldTransport
WIPO sectorMechanical engineering

Abstract

A tugboat with a forwardly-facing rudder and roller at the stern, and a propulsion drive disposed at either the bow or the stem that generates a high transverse force for towing large ships on a desired course. The roller is disposed in an off-flow region aft of the rudder.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.