公开(公告)号：US4085765A

公开(公告)日：1978-04-25

申请号：US682545

申请日：1976-05-03

Applicant: Kris L. Nelson

Inventor： Kris L. Nelson

IPC: F16K17/16 ,  F16K17/40

CPC classification number: F16K17/1613 ,  Y10T137/1737 ,  Y10T137/1759 ,  Y10T137/1963

Abstract: A one-shot pressure relief device which can be hermetically sealed comprising a housing with a port fitting for connecting to a pressure zone to be monitored, the fitting having a passage which leads into a central cavity within the housing from the top side. The cavity is divided and sealed into two portions by a thin metallic membrane fixedly mounted adjacent a snap-acting pressure disc member with a central aperture. A hollow puncture member is positioned in the bottom of the housing in axial registry with the center aperture of the snap-acting pressure disc so that upon an over pressure condition in the monitored zone, the disc will snap over center at a predetermined condition allowing the membrane to move likewise piercing itself on the puncture member thereby venting and relieving the over pressure condition.

Abstract translation: 一种可以气密密封的一次性压力释放装置，包括具有用于连接到待监测的压力区的端口配件的壳体，该配件具有从顶侧进入壳体内的中心腔的通道。 通过与具有中心孔的弹性作用压力盘构件相邻地固定地安装的薄金属膜将空腔分成两部分并密封。 空心穿刺构件定位在壳体的底部中，与按压作用压力盘的中心孔轴向对准，使得在被监视区域中的过压状态下，盘将以预定的状态在中心处卡扣，从而允许 膜移动同样穿刺在穿刺构件上，从而排气和缓解过压状态。