发明名称 SEMIRIGID FOLDABLE BOAT
摘要 A lightweight foldable boat comprised of substantially flat elongated flexible elements positioned so as to form side and bottom panels, said panels being spatially secured to each other at their extremities and adjacent edges by a foldable material impervious to liquids and the like thereby defining an elongated open faced vessel. A removable expansion member, which is slightly larger in width and depth then the width and depth of the formed vessel prior to the expansion of the latter, is positioned in the midsection of the vessel in tensional engagement with the side and bottom panels thereof, thereby outwardly bowing the same. A removable locking member is inserted to engage the expansion member so as to maintain the latter in tensional engagement with the side and bottom panels, said locking member being engaged with the side panels to prohibit movement of the locking member in a plane normal to said locking member, accordingly preventing subsequent displacement of the expansion member thereby maintaining the side and bottom panels in a substantially rigid outwardly bowed position.
申请公布号 US3648309(A) 申请公布日期 1972.03.14
申请号 USD3648309 申请日期 1970.09.21
申请人 MILAN NOVAKOVICH 发明人 MILAN NOVAKOVICH
分类号 B63B7/00;(IPC1-7):B63B7/06 主分类号 B63B7/00
代理机构 代理人
主权项
地址