公开(公告)号：EP1179151A2

公开(公告)日：2002-02-13

申请号：EP00909171.1

申请日：2000-02-15

申请人： Federhen, Bernd

发明人： Federhen, Bernd

IPC分类号： F16K1/00

CPC分类号： F16J15/46

摘要： The invention relates to an inflatable seal (20). An inner body (22) consisting of a dimensionally stable material is embedded in an outer part (24) consisting of an elastic material, at least one strip of material (25) of the outer part (24) adjacent to the inner body being configured with an outer sealing surface in the manner of a moveable membrane and being separated from the inner body (22). A gap (40) which can be impinged upon by a pressure medium is located between the undersurface (23) of the inner body and said strip of material (25).

公开(公告)号：EP1154943A1

公开(公告)日：2001-11-21

申请号：EP00909170.3

申请日：2000-02-15

申请人： Federhen, Bernd

发明人： Federhen, Bernd

IPC分类号： B65G53/12 ,  B65G53/46

CPC分类号： B65G53/12 ,  B65G53/46 ,  B65G53/4691

摘要： The invention relates to a device for inwardly transferring bulk material from a reservoir or a retaining area through a sluice area (24) into a pneumatic conveyor line (12). The sluice area (24) can be closed off from the reservoir or retaining area by means of an axially moveable closing body (64) and at least one sealing partner element which lies opposite said sealing body in its path of motion. The closing body (64) has at least one aeration opening (62), which opens into an air evacuation channel and can be sealed by a sealing body (56) when a lifting element (52) performs an upward closing movement. The downward opening path (X) of said sealing body is shorter than the downward path of the lifting element (52) with the sealing body (56). The closing body (64) extends from a from a narrow cross section which forms an inner sealing edge (63) to the sealing body (56) in a funnel shape. The narrow cross section is ring-shaped and forms a ring-shaped seat for the sealing body (56) in the closing position. One of the sealing partner elements is a flexible sealing surface which is transversally fixed at one end. The other is a sealing edge which the carries the free edge area of the sealing surface and increasingly deforms it in the path of movement. The sealing surface is preferably configured as a ring surrounding the closing body (64).

公开(公告)号：EP1179151B1

公开(公告)日：2003-04-02

申请号：EP00909171.1

申请日：2000-02-15

申请人： Federhen, Bernd

发明人： Federhen, Bernd

IPC分类号： F16K1/00

CPC分类号： F16J15/46

摘要： The invention relates to an inflatable seal (20). An inner body (22) consisting of a dimensionally stable material is embedded in an outer part (24) consisting of an elastic material, at least one strip of material (25) of the outer part (24) adjacent to the inner body being configured with an outer sealing surface in the manner of a moveable membrane and being separated from the inner body (22). A gap (40) which can be impinged upon by a pressure medium is located between the undersurface (23) of the inner body and said strip of material (25).

公开(公告)号：EP1154943B1

公开(公告)日：2003-08-06

申请号：EP00909170.3

申请日：2000-02-15

申请人： Federhen, Bernd

发明人： Federhen, Bernd

IPC分类号： B65G53/12 ,  B65G53/46

CPC分类号： B65G53/12 ,  B65G53/46 ,  B65G53/4691

摘要： The invention relates to a device for inwardly transferring bulk material from a reservoir or a retaining area through a sluice area (24) into a pneumatic conveyor line (12). The sluice area (24) can be closed off from the reservoir or retaining area by means of an axially moveable closing body (64) and at least one sealing partner element which lies opposite said sealing body in its path of motion. The closing body (64) has at least one aeration opening (62), which opens into an air evacuation channel and can be sealed by a sealing body (56) when a lifting element (52) performs an upward closing movement. The downward opening path (X) of said sealing body is shorter than the downward path of the lifting element (52) with the sealing body (56). The closing body (64) extends from a from a narrow cross section which forms an inner sealing edge (63) to the sealing body (56) in a funnel shape. The narrow cross section is ring-shaped and forms a ring-shaped seat for the sealing body (56) in the closing position. One of the sealing partner elements is a flexible sealing surface which is transversally fixed at one end. The other is a sealing edge which the carries the free edge area of the sealing surface and increasingly deforms it in the path of movement. The sealing surface is preferably configured as a ring surrounding the closing body (64).