The device has bridge elements (1) interconnected by hinges (2) which are located so that the bridge elements can be folded up in concertina fashion. The bridge elements are at least partially equipped with inflatable floats (4), and are at least partially anchored, whereby each element is connected to a weight (9) by a cable (8). At the other end the cable is attached to the bridging element by a pulley block arrangement.
申请公布号
DE19740812(A1)
申请公布日期
1999.03.18
申请号
DE19971040812
申请日期
1997.09.16
申请人
GRUENER, FRIEDRICH, DR.RER.NAT., 78253 EIGELTINGEN, DE
发明人
GRUENER, FRIEDRICH, DR.RER.NAT., 78253 EIGELTINGEN, DE