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:
Apr. 27, 2021
Filed:
Apr. 27, 2018
Applicant:
Skf Marine Gmbh, Hamburg, DE;
Inventors:
Holger Spardel, Hamburg, DE;
Frank Albrecht, Stadtoldendorf, DE;
Ulrich Albrecht, Stadtoldendorf, DE;
Kai Danneberg, Hamburg, DE;
Uwe Leitloff, Wennigsen, DE;
Assignee:
SKF MARINE GMBH, Hamburg, DE;
Primary Examiner:
Int. Cl.
CPC ...
B63H 5/16 (2006.01);
U.S. Cl.
CPC ...
B63H 5/16 (2013.01);
Abstract
A cover device for at least partially closing an underwater opening in a hull of a watercraft includes a variable-volume hollow-chamber lip assembly including at least two hollow-chamber lips and one buoyancy body. The at least one hollow-chamber lip is volume-variable by supplying a fluid to or removing a fluid from an interior thereof, and the at least one hollow-chamber lip assembly is shiftable between an expanded state and a contracted state by supplying or removing the fluid.