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US 4,492,103 AGranted
Apparatus for manufacturing rupture disks
AssigneeBS&B Safety Systems, Inc.
InventorLeo J. Naumann
Life of this patent
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Abstract
An improved apparatus for manufacturing a rupture disk containing one or more scores or perforations from a sheet metal section comprising the steps of cutting the sheet metal section into a disk, forming a concave-convex dome in the disk by applying pressurized fluid to one side thereof, and then forming one or more scores or perforations in the concave-convex dome of the disk while continuing to apply pressurized fluid thereto.
Claims10
Apparatus for manufacturing scored or perforated rupture disks from sheet metal sections comprising:
- a base;
- a rupture disk forming die removably attached to said base;
- means for sealingly clamping a sheet metal section to said die and cutting said section into a disk movably positioned adjacent said die;
- means for applying pressurized fluid to a sheet metal disk whereby said disk is forced against and conformed to said die attached to said clamping and cutting means;
- means for selectively moving said clamping and cutting means into and out of clamping and cutting contact with a sheet metal section attached to said base and to said clamping and cutting means;
- a movable ram having a score or perforation forming blade attached thereto sealingly attached to said clamping and cutting means and positioned to move said blade into forceable contact with a sheet metal disk forced against and conformed to said die whereby scores or perforations are formed on or in said disk;
- and
- means for selectively moving said ram attached thereto and to said clamping and cutting means.
5 more elements
Dependencies are inferred from the claim text.