Back-flow prevention valve for cavity wall filling inlet
摘要
A cavity wall is injection-filled with a fluid e.g. heat insulation mass through a hole (2) which is fitted with a back-flow prevention valve. The valve passage has a number of axial guide surfaces (4) for a rubber piston (1), the movement of which is limited by raised sections (5) on the guide surfaces.
申请公布号
DE19803586(A1)
申请公布日期
1999.08.05
申请号
DE19981003586
申请日期
1998.01.30
申请人
DESOI GMBH, 36148 KALBACH, DE
发明人
DESOI, SIEGFRIED, 36148 KALBACH, DE;DESOI, MARTIN, 36148 KALBACH, DE