ARMING TANDEM AND LOCKING COLLAR FOR PERFORATING GUN SYSTEMS
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United States of America Patent
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Issued Date -
May 2, 2024
app pub date -
Oct 24, 2023
filing date -
Oct 31, 2022
priority date (Note) -
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status (Latency Note)
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Abstract
An arming tandem for a perforating gun is provided. The arming tandem includes an internal arming pin that is biased in a retracted position. Detonating the last perforating gun in a gun string forces the arming pin in the immediately adjacent tandem into contact with a grounding plate in the next perforating gun, thereby arming the next perforating gun. The arming pin is biased in the retracted position by a helical compression spring that is contained within a counterbored opening in the arming tandem. An adjacent bulkhead includes a grounding plate that surrounds a contact pin. The grounding plate provides a flat surface for contacting the arming pin and creating a secure connection to ground.
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