Sanitary seal design and vent using such seal
    2.
    发明授权
    Sanitary seal design and vent using such seal 有权
    卫生密封设计和排气口使用这种密封

    公开(公告)号:US06306191B1

    公开(公告)日:2001-10-23

    申请号:US09438451

    申请日:1999-11-12

    IPC分类号: B01D4600

    摘要: A seal, a vent for a filter housing and a system for using them. The seal is designed a first outer seal having a closed outer periphery that divides and isolates a first inner area from the outside environment and a second inner seal formed along a portion of the inner surface of the first outer seal and forming a second inner area within the first inner area and which is isolated from both the first inner area and the outside environment. The seal is incorporated into a vent for a filter housing having opening is contained within a vent area and the opening is offset from the center of the vent area. The opening establishes a fluid pathway from the interior to the exterior of the filter device. The inner seal surrounds the vent opening. The outer seal also surrounds the vent opening at one of its ends and surrounds the entire periphery of the vent area so as to isolate the vent area from the area outside of the vent area. A vent cap is secured at its outer periphery to the outer periphery of the vent area. The cap has an exhaust port which when in alignment with the vent allows fluid to flow out of the housing interior. The exhaust port is offset from the center of the cap and is designed to align with the offset opening of the vent. The cap is either moved in a linear or rotational motion and the vent opening and the cap opening are always contained within the area defined by the outer seal so as to form a sanitary seal. Also disclosed in a sanitary recovery system utilizing the seal and vent of the present invention.

    摘要翻译: 密封件,用于过滤器壳体的通风口和使用它们的系统。密封件被设计为具有封闭的外周边的第一外部密封件,该外部密封件将第一内部区域与外部环境分隔并隔离,并且沿着部分形成第二内部密封件 并且在第一内部区域内形成第二内部区域并且与第一内部区域和外部环境两者隔离。密封件被结合到用于具有开口的过滤器壳体的通风口中 在通气区域内,开口偏离通气区域的中心。 该开口形成从过滤装置的内部到外部的流体路径。 内部密封件围绕通风口。 外部密封件在其一端处围绕通气口,并且围绕通气区域的整个周边,从而将通气区域与通气区域外部区域隔离。 通气盖在其外周边固定到通气区域的外周。 盖具有排气口,当与排气口对准时允许流体流出壳体内部。 排气口从盖的中心偏移并被设计成与通气口的偏移开口对准。 盖子或者以线性或旋转运动移动,并且通风口和盖开口总是包含在由外部密封件限定的区域内,以便形成卫生密封件。还在使用密封件和通风口的卫生回收系统中公开 的本发明。