Thermal release plug for a fabricated pressure vessel
AssigneeSharon Manufacturing Company
InventorsSharon J. Hudson, Jr., Karl T. Petersen
Life of this patent
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Abstract
A thermal release plug for a pressure vessel having a plug well formed in the wall of the vessel. The well contains a circular metal plug member and a low temperature fusible sealant. The well is generally frusto-conical in shape with standoff means to contact the plug at at least three points and thus provide narrow circumferentially disposed arcuate gaps between the plug and the well wall between points of contact. The sealant is fused to the well surface in a furnace under copper brazing conditions.
Claims7
A safety vent structure for a pressure vessel fabricated of sheet metal casing sections brazed together, said structure comprising:
- an inwardly converging generally frusto-conical well formed in the wall of one of said sections, a vent opening in the bottom of said well, a plug member in said well, said plug member having a circular periphery, said well having radially disposed plug standoff means for supporting said plug member at spaced locations around said periphery in contact therewith such that peripheral portions intermediate said locations are spaced from the adjacent inner surface of said well, and a low temperature fusible sealant bridging the space between said plug member periphery and said inner well surface.
Dependencies are inferred from the claim text.