Gas leak repair method and gas leak repair structure

A cost-effective gas leak repair method using common components like modified nuts and sealing materials creates a systematic seal in gas-filled devices, addressing the challenges of specialized part reliance and enabling on-site adoption.

JP7873706B2Active Publication Date: 2026-06-12HOKKAIDO ELECTRIC POWER COMPANY INC
View PDF 3 Cites 0 Cited by

Patent Information

Application Number
JP2024118428
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Filing Date
2024-07-24
Publication Date
2026-06-12
Estimated Expiration
2044-07-24

AI Technical Summary

Technical Problem

Existing gas leak repair methods in gas-filled devices like gas circuit breakers are costly and difficult to implement due to the use of specialized parts, making widespread adoption on-site challenging.

Method used

A method using readily available components such as modified tall nuts, O-ring bolts, twine, and sealing materials to create a systematic seal around the gas leak point, guiding gas flow through a secured path and applying a deformable final seal layer to accommodate thermal expansion.

Benefits of technology

Enables effective gas leak repair using common materials, reducing costs and allowing on-site implementation without specialized tools, while maintaining a secure seal even under pressure.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure 0007873706000001
    Figure 0007873706000001
  • Figure 0007873706000002
    Figure 0007873706000002
  • Figure 0007873706000003
    Figure 0007873706000003
Patent Text Reader

Abstract

To provide a gas leak repair method and structure capable of repairing a gas leak using easily available parts even when gas is sealed inside a device. [Solution] The gas leak repair method includes the steps of wrapping a cord 3 around the boundary between the equipment body 11 and the closing flange 12, positioning a high nut 4 with a portion of the cord 3 housed inside so that it contacts the boundary, sealing the boundary and a portion of the high nut 4 with a sealant 6, and positioning a bolt 5 with an O-ring inside the high nut 4 to seal the high nut 4.
Need to check novelty before this filing date? Find Prior Art

Citation Information

Patent Citations

  • Gas leak repair method for gas insulated electric device

    JP2012253962A

  • Gas leak stop method for gas filling apparatus

    JP2015173552A

  • Gas leakage repair method and gas leakage repair tool

    JP2018066392A