Oklahoma Safety Equipment Company, Inc.

John W Reynolds

Jerry W Kays

Alan T Wilson

Bobby H Burton

A rupture disk provides an improved scoring configuration that allows low pressure burst disks of very small diameter such as, for example, 0.25 inches in diameter, wherein the score of the rupture disk is generally circular in shape which terminates at end portions that define a hinge therebetween.

Rupture disk construction

A composite rupture disk includes a slit-slot, tension loaded disk having a plurality of circumferentially spaced radial slits (e.g. six in number) that terminate before reaching the disk center, thereby defining an uncut disk central portion which can be sized to at least partially influence the disk burst pressure. A radial strap, spot welded at each end attaches respectively at its end to the disk central portion and to the disk periphery, thereby preventing a downstream flow of the central portion upon rupture.

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Bixby, OK, United States of America

John W Reynolds