公开(公告)号：US3837567A

公开(公告)日：1974-09-24

申请号：US34955273

申请日：1973-04-09

申请人： ALFA LAVAL AB

发明人： NILSON C ,  OLSSON S

IPC分类号： B04B7/02 ,  E05B65/00 ,  F16P3/08 ,  B04B7/06

CPC分类号： F16P3/08

摘要： The frame and cover have supporting surfaces engageable by a hose in an expanded condition thereof to lock the cover in its closed position. Control means are provided for maintaining the hose filled with fluid to hold it in its expanded position, such means being operable to discharge fluid from the hose so that it contracts to a condition in which said supporting surfaces permit movement of the cover to an open position.

摘要翻译： 框架和盖具有在其扩展状态下由软管接合的支撑表面，以将盖锁定在其关闭位置。 提供控制装置用于保持充满流体的软管以将其保持在其膨胀位置，这种装置可操作以从软管排出流体，使得其收缩到所述支撑表面允许盖移动到打开位置的状态 。