FIELD: instrument engineering.
SUBSTANCE: invention relates generally to discontinuous discs having laser line made of rupture comprising one or more structures for controlling rupture of disc. Rupture disk (10) comprises line of opening (16) formed in at least one face thereof. Line of opening (16) is formed by laser machining of disc's face and includes at least one disc opening control feature (20). Disc opening control feature (20) may be opening-initiation feature, configured to assist with initial rupture of disc (10). Alternatively, opening control feature (20) may be anti-fragmentation feature configured to dissipate energy, acting upon disc (10), so as to prevent separation of petal formed upon opening of disc.
EFFECT: preventing separation of petal formed when disc is ruptured.
37 cl, 29 dwg
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