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:
May. 08, 2001
Filed:
May. 19, 1997
Jeffrey W. Strong, Jupiter, FL (US);
John R. Newton, Boca Raton, FL (US);
Tides Marine, Inc., Deerfield Beach, FL (US);
Abstract
A rudder for a sailboat or other vessel formed by a lightweight core having the combined shape of the blade and the stock of the rudder, and a fiber-reinforced resin skin enveloping the core and conforming thereto to create a monocoque structure in which the skin bears the major portion of the torsional and bending stresses to which the rudder is subjected when in use. The pre-cast foam-plastic core of the rudder is formed by a blade section and a stock section having a root received in a slot in the blade section, the stock section being wrapped with a layer of reinforcing fibers before being combined with the blade section. To produce the rudder, the pre-cast core is placed in the cavity of a mold lined with reinforcing fibers which wrap the core inserted therein. Then injected into the closed mold is a flowable resin which impregnates the fibers wrapping the core whereby when the resin cures, these fibers are bonded to and reinforce the resultant resin skin enveloping the rudder core to create a monocoque rudder structure of exceptional strength.