发明名称 |
DEVICE FOR SHUTTING OFF PIPELINES FOR THE TRANSPORT OF BULK PRODUCTS |
摘要 |
<p>The device comprises a housing with a circular passage orifice, a pivoting closing element in the form of a spherical dome and a circular gasket surrounding the said orifice and mounted on an annular support axially displacable towards the closing element under the action of a pneumatic fluid, the said annular support possessing for this purpose a passive annular surface exposed to the pressure in the said housing, the active surface of the support being larger than its passive surface.</p> |
申请公布号 |
GB2230841(B) |
申请公布日期 |
1993.02.03 |
申请号 |
GB19900002911 |
申请日期 |
1990.02.09 |
申请人 |
* PAUL WURTH S.A. |
发明人 |
PIERRE * MAILLIET ,;HENRI * RADOUX;LEON * ULVELING;JEANNOT * LOUTSCH;EMILE * LONARDI |
分类号 |
F16K5/06;B65G53/46;F16K5/20 |
主分类号 |
F16K5/06 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|