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. 16, 1985
Filed:
Sep. 28, 1982
Richard T Weaver, Pinellas Park, FL (US);
Gregory A Weaver, Oldsmar, FL (US);
Other;
Abstract
A rudder blade means of the type designed to reduce the drag produced by rudder blades of conventional design. The novel design, having utility in any vessel that travels through a fluid medium and incorporates a substantially vertically aligned chamber formed internally of the rudder body. The chamber has a narrow, slot-like portion that is in open communication with the trailing edge of the rudder body, and an enlarged, bore-like portion remote from said trailing edge but in open communication with the innermost portion of said slot-like portion. In applications where the rudder body is mounted to a sea-going vessel, and wherein such rudder body has a submerged portion and an un-submerged portion, water enters the chamber, in a counterswirling pattern, through the slot-like portion, and is driven upwardly, by water pressure, through the bore-like portion and is expelled above the water line through the uppermost region of said slot-like portion of such chamber.