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:
Mar. 14, 2017
Filed:
May. 12, 2010
Gunnar Johnsen, Ulsteinvik, NO;
Gunnar Johnsen, Ulsteinvik, NO;
Rolls-Royce Marine AS, Ulsteinsvik, NO;
Abstract
The present invention relates to a rim driven propeller unit for a vessel, where a number of permanent magnets () are arranged round the propeller unit's rotatable rotor housing (), comprising a number of propeller blades (), and a number of permanent magnets round the propeller unit's external, stationary casing () housing the rotatable rotor housing, where the permanent magnets round parts of the rotatable rotor housing and the external, stationary casing's circumference are provided located above one another with like polarity, while other parts of the rotatable rotor housing and the external, stationary casing are provided located facing one another with opposite polarity, whereby the rotor housing and the stationary casing are repelled by and attracted to one another respectively, thereby being prevented from coming into contact with one another.