{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9739412","patent":{"patent_number":"US-9739412","title":"Method of extending life expectancy of high-temperature piping and life expectancy extension structure of high-temperature piping","assignee":null,"inventors":[],"filing_date":"2015-01-15T00:00:00.000Z","publication_date":"2017-08-22T00:00:00.000Z","cpc_codes":["G01N","G01N"],"num_claims":10,"abstract":"A method of extending a life expectancy of a high-temperature piping, includes removing a heat insulation material which covers the piping having a high creep rupture risk, and lowering an outer surface temperature of piping, wherein a width of an exposed portion obtained is twice or more a distance from a peeled-off end portion of the exposed portion to a portion where a compressive stress is asymptotical to 0 after a change in stress between a tensile stress and the compressive stress occurring in the piping due to the removal of the heat insulation material is made from the tensile stress to the compressive stress, and the distance is calculated based on the following formulae, βx=5,here, ν is a Poisson's ratio, a is an average radius of the piping, and h is a plate thickness of the piping."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Method of extending life expectancy of high-temperature piping and life expectancy extension structure of high-temperature piping","description":"A method of extending a life expectancy of a high-temperature piping, includes removing a heat insulation material which covers the piping having a high creep rupture risk, and lowering an outer surfa","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9739412","license":"CC-BY-4.0-like","license_terms":"AI-generated analysis on this page (summary, layman_explanation, technical_analysis, business_analysis, faqs) may be reused with attribution and a visible link back to the canonical URL above. Patent abstracts, claims, and bibliographic data are USPTO public domain.","required_link":"https://patentable.app/patents/US-9739412","citation_suggestion":"Patentable. \"Method of extending life expectancy of high-temperature piping and life expectancy extension structure of high-temperature piping\" (US-9739412). https://patentable.app/patents/US-9739412","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9739412","json":"https://patentable.app/api/llm-context/US-9739412","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T11:45:13.408Z"}