公开(公告)号：US5720380A

公开(公告)日：1998-02-24

申请号：US565142

申请日：1995-12-01

Applicant: James R. Graham II

Inventor： James R. Graham II

IPC: F16K17/16 ,  F16K17/40

CPC classification number: F16K17/1613

Abstract: A reverse buckling disk has an annular retaining flange for mounting in a flow passageway. The annular retaining flange is integrally formed with a central domed portion having a concave side and a convex side. The disk has a predetermined material thickness and domed height for establishing a rated pressure at which the central domed portion reverse buckles. A metal cutting element or knife is fixedly attached to at least a portion of the convex side of the central domed portion in surface-conforming relationship. The metal cutting element has a thickness greater than the thickness of the disk material and has at least one knife point thereon for cutting the disk as the central domed portion reverse buckles at the rated pressure.

Abstract translation: 反向弯曲盘具有用于安装在流动通道中的环形保持凸缘。 环形保持凸缘与具有凹面和凸面的中心圆顶部一体地形成。 盘具有预定的材料厚度和圆顶高度，用于建立中心圆顶部分反向弯曲的额定压力。 金属切割元件或刀以表面一致的关系固定地附接到中心圆顶部分的凸侧的至少一部分。 金属切割元件的厚度大于圆盘材料的厚度，并且在额定压力下，当中心圆顶部分反向弯曲时，在其上具有用于切割圆盘的至少一个刀尖。