Sep 23, 2025

US12422237 - Addressable ignition stage for enabling a detonator/ignitor

The present invention is directed toward an addressable ignition stage which produces an output sufficient to detonate a secondary explosive, generally. The present invention comprises addressability and ignition functions that may be used together or separately to incorporate a high-power resistor with a thermally conductive substrate allowing for operation at high temperatures for ignition. The ignition stage is amendable to high volume production, exhibits a high degree of reliability, robustness and operational dependability for use alone or configurable into existing technology.

Inventors: Ryan Parasram
Filing date: 2021-10-29

The invention relates to an addressable ignition stage designed to detonate primary or secondary explosives by utilizing a high-power resistor and a thermally conductive substrate for reliable operation at elevated temperatures. This ignition stage is adaptable for high-volume production and can be integrated into existing technologies, ensuring robustness and operational dependability.

Claim 1

An addressable ignition stage device configured to actuate a primary or secondary explosive following voltage breakdown in a detonator/ignitor comprising: voltage accepting terminals; one or more conductors; one or more rectifier diodes; said one or more rectifier diodes directing activating polarity of applied voltage; one to a plurality of voltage standoff devices; said voltage standoff device or devices having a standoff voltage, threshold voltage, or trigger current; said voltage standoff device or devices comprising a thyristor voltage standoff device or devices configured to allow current flow to an ignition element only upon reaching voltage breakdown by exceeding said standoff voltage, threshold voltage, or trigger current; and said ignition element firing upon receiving current step from voltage breakdown. voltage accepting terminals; one or more conductors; one or more rectifier diodes; said one or more rectifier diodes directing activating polarity of applied voltage; said one or more rectifier diodes directing activating polarity of applied voltage; one to a plurality of voltage standoff devices; said voltage standoff device or devices having a standoff voltage, threshold voltage, or trigger current; said voltage standoff device or devices comprising a thyristor voltage standoff device or devices configured to allow current flow to an ignition element only upon reaching voltage breakdown by exceeding said standoff voltage, threshold voltage, or trigger current; and said ignition element firing upon receiving current step from voltage breakdown. said voltage standoff device or devices having a standoff voltage, threshold voltage, or trigger current; said voltage standoff device or devices comprising a thyristor voltage standoff device or devices configured to allow current flow to an ignition element only upon reaching voltage breakdown by exceeding said standoff voltage, threshold voltage, or trigger current; and said ignition element firing upon receiving current step from voltage breakdown.

Google Patents

https://patents.google.com/patent/US12422237

USPTO PDF

https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/12422237