FIELD: electrical engineering.
SUBSTANCE: invention relates to a pressure relief device (versions) and a method for making same (versions). Pressure relief device includes an over-pressure relief area, having a plurality of co-linear spaced apart recesses located thereon. Gap segments are interspersed between the recesses to define a line of opening, having desired performance characteristics during opening of the over-pressure relief area.
EFFECT: invention provides increased stiffness and integrity of the over-pressure relief area and thereby allows for more careful control of the disc detachment characteristics upon opening, and also in certain embodiments, to expand the bursting pressure range for a disc made of a material of a certain thickness.
48 cl, 15 dwg
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