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公开(公告)号：WO2018071125A1
公开(公告)日：2018-04-19
申请号：PCT/US2017/051463
申请日：2017-09-14
Applicant: CONSTRUCTION FORMS, INC.
Inventor： MCMICHAEL, Brett
CPC classification number: F16K7/07 , E04G21/0418 , E04G2021/049 , F16K7/075 , Y10T137/3631
Abstract: A concrete flow leakage-preventing shut-off valve includes an outer flexible casing configured to be disposed around a concrete delivery hose. A flexible inflatable bladder is disposed within the casing and defines a gas chamber therein. A gas intake/exhaust device extends through the casing and into the gas chamber such that pressurized gas introduced and exhausted from the gas chamber enables movement of the bladder to define closed and open concrete flow conditions of concrete relative to an outlet end of the hose. A clamping arrangement secures opposite ends of the casing and the bladder in radially and axially spaced apart relationship, and is configured to maintain a surrounding relationship of the casing and bladder with respect to the hose.
Abstract translation: 防混凝流防漏切断阀包括构造成围绕混凝土输送软管布置的外柔性外壳。 柔性可充气气囊布置在壳体内并在其中限定气体室。 进气/排气装置延伸穿过壳体并进入气室，使得从气室引入和排出的加压气体使得气囊运动，从而限定混凝土相对于软管出口端的封闭和开放的混凝土流动状态。 夹紧装置以径向和轴向间隔的关系固定壳体和气囊的相对端，并且构造成保持壳体和气囊相对于软管的周围关系。
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公开(公告)号：EP3523491A1
公开(公告)日：2019-08-14
申请号：EP17778392.5
申请日：2017-09-14
Applicant: Construction Forms Inc.
Inventor： MCMICHAEL, Brett
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