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1. 发明公开

EP1400690A2 Non-return valves for vacuum pumps 审中-公开
标题翻译： RückschlagventilfürVakuumpumpen
公开(公告)号：EP1400690A2
公开(公告)日：2004-03-24
申请号：EP03255709.2
申请日：2003-09-12
申请人： The BOC Group plc
发明人： Savidge, Derek , North, Philip , Turner, Neil
IPC分类号： F04B39/10 , F16K15/04
CPC分类号： F04B39/1006 , F16K15/048 , F16K25/005
摘要： A vacuum pump non-return valve comprises a valve body (12) that defines a through-passage having an inlet side (14i) and an outlet side (14e). A valve seat (16) is disposed intermediate said inlet and outlet sides of the through-passage. The valve seat (16) is defined by an insert made of an elastomeric material. The non-return valve has a ball (18) arranged to seat against the valve seat to prevent the passage of gaseous fluids from the outlet side (14e) to the inlet side (14i). The ball is displaceable, in use, from valve seat by pressurised gaseous fluid in the inlet side of the through-passage to permit passage of gaseous fluid from the inlet side to the outlet side of the through-passage.
摘要翻译：真空泵止回阀包括限定具有入口侧（14i）和出口侧（14e）的通道的阀体（12）。阀座（16）设置在贯通通道的入口侧和出口侧之间。阀座（16）由弹性材料制成的插入件限定。止回阀具有布置成抵靠阀座抵靠的球体（18），以防止气体流体从出口侧（14e）通向入口侧（14i）。球在使用中通过加压气态流体在通道的入口侧从阀座移位，以允许气态流体从通道的入口侧流出到出口侧。

2. 发明公开

EP1096183A2 Seal assemblies 审中-公开
标题翻译：密封组件
公开(公告)号：EP1096183A2
公开(公告)日：2001-05-02
申请号：EP00309305.1
申请日：2000-10-23
申请人： The BOC Group plc
发明人： North, Philip , Ormrod, Stephen Ellis , Bailey, Christopher Mark
IPC分类号： F16J15/12
CPC分类号： F16L23/18 , F16J15/104 , F16J15/125
摘要： A seal assembly comprising a main O-ring seal element (2) for engaging in a fluid tight manner opposed surfaces (10,12) of two objects to be sealingly connected together and a barrier element (4) positioned to protect all or a substantial portion of the surface of the main O-ring seal element (2) against contact by the fluid when passing through the seal assembly from one object to the other object.
摘要翻译：一种密封组件，包括用于以流体密封方式接合待密封地连接在一起的两个物体的相对表面（10,12）的主O形密封环元件（2）和定位成保护所有或大量的屏障元件（4）当主O形密封圈元件（2）的表面的一部分在通过密封组件从一个物体到另一个物体时防止流体接触。

3. 发明公开

EP1096183A3 Seal assemblies 审中-公开
公开(公告)号：EP1096183A3
公开(公告)日：2003-01-15
申请号：EP00309305.1
申请日：2000-10-23
申请人： The BOC Group plc
发明人： North, Philip , Ormrod, Stephen Ellis , Bailey, Christopher Mark
IPC分类号： F16J15/12 , F16L23/18 , F16J15/10
CPC分类号： F16L23/18 , F16J15/104 , F16J15/125
摘要： A seal assembly comprising a main O-ring seal element (2) for engaging in a fluid tight manner opposed surfaces (10,12) of two objects to be sealingly connected together and a barrier element (4) positioned to protect all or a substantial portion of the surface of the main O-ring seal element (2) against contact by the fluid when passing through the seal assembly from one object to the other object.

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