公开(公告)号：US4530299A

公开(公告)日：1985-07-23

申请号：US629568

申请日：1984-07-10

申请人： Alan Ross

发明人： Alan Ross

IPC分类号： B63B35/79 ,  B63B35/00

CPC分类号： B63B35/7966 ,  B63B35/792 ,  B63B35/7959

摘要： A wind propelled surfboard which has a catamaran hull wherein each hull can be folded to a collapsed position. Also, the mast and boom are capable of being folded when into a collapsed position when not in use.

摘要翻译： 具有双体船体的风力推进冲浪板，其中每个船体可以折叠到折叠位置。 此外，桅杆和吊臂在不使用时能够折叠成折叠位置。

公开(公告)号：US07212147B2

公开(公告)日：2007-05-01

申请号：US10895174

申请日：2004-07-19

申请人： Al Messano

发明人： Al Messano

IPC分类号： H01Q17/00 ,  G01S13/00

CPC分类号： H01Q17/00

摘要： A method for reducing radar cross section of an object that has conductive portions and that is expected to be scanned by radar, which includes providing the object with a multiple layer radar cross section reducing structure that reduces or entraps or dissipates radar waves therein so that the size or configuration of the object cannot be correctly detected by radar scanning. The invention also relates to the radar cross section reducing structure alone or associated with an object such as a vehicle that transports personnel or equipment. The structure can be provided on an object that previously has no stealth capability or it can be applied to an object that already has stealth capability for increasing its capability to prevent correct detection by radar scanning.

摘要翻译： 一种用于减少具有导电部分并且预期由雷达扫描的物体的雷达横截面的方法，其包括向对象提供减少或截留或消散其中的雷达波的多层雷达截面减小结构， 雷达扫描无法正确检测物体的大小或配置。 本发明还涉及单独或与诸如运输人员或设备的车辆的物体相关联的雷达横截面减小结构。 该结构可以提供在先前没有隐身能力的物体上，或者它可以应用于已经具有秘密能力的物体，以增加其防止雷达扫描的正确检测的能力。

公开(公告)号：US3678878A

公开(公告)日：1972-07-25

申请号：US3678878D

申请日：1970-02-24

申请人： ROBERT ALAN ROSS CLUNIS

发明人： ROSS-CLUNIS ROBERT ALAN

IPC分类号： B63H25/04 ,  B63H25/08

CPC分类号： B63H25/04

摘要： A self-steering arrangement for sailboats comprising a counterbalanced vane pivoted on a horizontal axis and coupled by cables to the trim tab of an auxiliary rudder. The vane is pivotable about a second horizontal axis orthogonal to the first to accommodate variations in wind force. The vane is also pivotable about a vertical axis relative to its mounting to permit it to be aligned with the apparent wind direction relative to the course desired for the boat. The entire arrangement is so mounted that the rudder portion may be withdrawn out of the water to permit conventional maneuvering, and is readily mountable and demountable on a boat without disturbing the normal operation thereof.

摘要翻译： 一种用于帆船的自行转向装置，其包括在水平轴线上枢转并且通过电缆耦合到辅助方向舵的装饰片的平衡叶片。 叶片可围绕与第一水平轴正交的第二水平轴线枢转，以适应风力的变化。 叶片也可相对于其安装件围绕垂直轴线枢转，以允许其相对于船舶所需的路线与明显的风向对准。 整个布置被安装成使得方向舵部分可以从水中取出以允许常规操纵，并且可以容易地安装和拆卸在船上而不干扰其正常操作。