{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9612109","patent":{"patent_number":"US-9612109","title":"Inner diameter measuring device","assignee":null,"inventors":[],"filing_date":"2013-02-07T00:00:00.000Z","publication_date":"2017-04-04T00:00:00.000Z","cpc_codes":["G01N"],"num_claims":5,"abstract":"An inner diameter measuring device for measuring a shape of an inner surface of a cylindrical member, comprising an image pickup unit (2) disposed on a base end side of a frame unit (10) and for picking up an image of a forward end side, a cone mirror unit (30) provided on a forward end side of the frame unit and having a cone mirror (29) with a conical reflection surface at a forward end, and a laser beam emitting unit (14) for emitting a laser beam (17) toward a forward end of the cone mirror, wherein the cone mirror unit can be replaced by another cone mirror unit having a cone mirror with a different vertical angle to suit measuring condition."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Inner diameter measuring device","description":"An inner diameter measuring device for measuring a shape of an inner surface of a cylindrical member, comprising an image pickup unit (2) disposed on a base end side of a frame unit (10) and for picki","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9612109","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-9612109","citation_suggestion":"Patentable. \"Inner diameter measuring device\" (US-9612109). https://patentable.app/patents/US-9612109","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9612109","json":"https://patentable.app/api/llm-context/US-9612109","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T08:48:29.228Z"}