{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-10473622","patent":{"patent_number":"US-10473622","title":"Method and apparatus for flaw inspection of friction-weld part of stem in engine valve","assignee":null,"inventors":[],"filing_date":"2018-02-03T00:00:00.000Z","publication_date":"2019-11-12T00:00:00.000Z","cpc_codes":["G01N","G01N","G01N","G01N","G01N","G01N","G01N","G01N"],"num_claims":5,"abstract":"Provided is a method for flaw inspection of a stem joint of a valve including: an internal flaw inspection step including causing a flaw detection probe to be disposed so as to face upward in water in a tank in an ultrasonic inspection chamber, holding a valve in such fashion as to cause the tip to face the flaw detection probe, and inspecting for a flaw at the interior of the stem joint; and a surface flaw inspection step including causing a flaw detection probe to be disposed horizontally in an eddy-current inspection chamber, holding a valve in such fashion as to cause the side face of a stem of the valve to be close to and facing the flaw detection probe, inspecting for a flaw on the surface of the stem joint while the flaw detection probe and the valve are made to engage in mutual rotation. The valves are transferred from a valve loading position to the ultrasonic inspection chamber, from the ultrasonic inspection chamber to the eddy-current inspection chamber, and from the eddy-current inspection chamber to a valve unloading position in substantially simultaneous, continuous, synchronous, and/or coordinated fashion."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Method and apparatus for flaw inspection of friction-weld part of stem in engine valve","description":"Provided is a method for flaw inspection of a stem joint of a valve including: an internal flaw inspection step including causing a flaw detection probe to be disposed so as to face upward in water in","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-10473622","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-10473622","citation_suggestion":"Patentable. \"Method and apparatus for flaw inspection of friction-weld part of stem in engine valve\" (US-10473622). https://patentable.app/patents/US-10473622","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-10473622","json":"https://patentable.app/api/llm-context/US-10473622","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T10:39:42.785Z"}