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:
Sep. 27, 1983
Filed:
Mar. 15, 1982
Wolfgang Wuhrer, Ravensburg, DE;
Escher Wyss GmbH, Ravensburg, DE;
Abstract
Essentially one-half of the circumference of the propeller of the marine vessel is arranged in a tunnel having a flow-favorable cross-sectional configuration which follows the flow lines of the water. At the starting region of the tunnel there is arranged a pivotable control plate which can be moved out of a retracted position where it lies in the surface of the tunnel into an extended position removed or remote from the aforesaid retracted position, in order to detach the flow of the water from the surface of the tunnel during rapid vessel travel. The propeller which is driven at a high rotational speed accordingly operates as a partially or semi-immersed propeller. The vessel floor and the control plate are interconnected by an elastically deformable cover plate which is secured to the vessel floor and the control plate in a bending or flexurally resistant fashion. This cover plate, both in the retracted as well as in the extended position of the control plate, affords a particularly flow-favorable covering of the gap or space formed between the vessel floor and the control plate. The front edge of the control plate is connected with the vessel hull by means of bearing or pillow blocks movable in the direction of travel of the vessel. The bearing blocks possess arm members which are increasingly elastically deformable in the direction of the retracted position of the control plate.