Delay composition for detonators
AssigneeCXA Ltd./CXA Ltee
InventorsAlan L. Davitt, Kenneth A. Yuill
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Abstract
A novel pyrotechnic delay composition is provided for use in both non-electric and electric blasting caps which is characterized by uniform burn rate and low toxicity. The composition, comprising an admixture of stannic oxide and silicon, has no carcinogenic properties.
Claims5
A pyrotechnic delay composition adapted for non-electric and electric millisecond delay detonators comprising from 55% to 80% by weight of particulate stannic oxide and from 20% to 45% by weight of particulate silicon.
An improved delay blasting detonator having a delay composition interposed between an ignition element and a primer/detonation element, said delay composition comprising 55% to 80% by weight of particulate stannic oxide and from 20% to 45% of particulate silicon.
Dependencies are inferred from the claim text.