Mast with top boom
Patent 6116177 Issued on September 12, 2000. Estimated Expiration Date: 
May 28, 2018. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
May 28, 2018. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 2364578 2944505 3195494 3827386 High efficiency aerodynamic sail system for boats, and method for sailing Sailing system Sailing vessel Sailboat mast Sail rig Sail rigging with fairing InventorApplicationNo. 085912 filed on 05/28/1998US Classes:114/91, Swinging114/97, Gaffs, booms, etc.114/102.16Including means to orient sailExaminersPrimary: Basinger, Sherman D.Attorney, Agent or FirmForeign Patent References
International ClassesB63B 015/00B63B 009/04 98 AbstractAn improved mast assembly for use on a sailing vessel having both an upper boom and a lower boom that allows a user to control the upper section of the sail independently or in conjunction with the lower section of the sail. The mast of the assembly is positioned away from the sail thereby utilizing a wire leading edge resulting in decreased wind turbulence, increased efficiency of the sail and greater sailing control over the rig and the entire vessel.Field of SearchMasts and mastingSwinging Having specific mast mounting means With specific means acted upon by wind to provide sailpower SAIL OR CONTROL MEANS THEREFOR Including means to orient sail Having gearing Having rope or line (e.g., sheet, etc.) And traveler And winch (e.g., capstan, driven pulley, windlass, etc.) And sheave or pulley Specific sail structure or arrangement Gaffs, booms, etc. | |
