Inventors:
Joseph K. Barbarits - Cheektowaga NY
Leonard T. Kujawa - West Seneca NY
Assignee:
Carleton Technologies, Inc. - East Aurora NY
International Classification:
B65D 9034
Abstract:
An improved pressure relief device (40) for a pressure vessel (42) includes a thin-walled cylindrical tube (41) mounted on the pressure vessel such that the interiors of the vessel and tube continuoulsy communicate with one another. A flat (50) is ground, or otherwise machined, on the tube outer surface to form a weakened wall portion (54) of reduced wall thickness. The vessel is first filled with pressurized fluid through the tube. Thereafter, the remote marginal end portion of the tube is crimped together, and the remote end (44) thereof brazed (53) to hermetically seal the same. The weakened portion is so dimensioned and configured that, should the pressure differential across the tube wall exceed the burst pressure of the tube, the tube will rupture predictably along a longitudinally-extending line (55) in the outer surface of the weakened portion.