{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11519769","patent":{"patent_number":"US-11519769","title":"Flow rate control system and flow rate measurement method","assignee":null,"inventors":[],"filing_date":"2019-07-16T00:00:00.000Z","publication_date":"2022-12-06T00:00:00.000Z","cpc_codes":["G05D"],"num_claims":8,"abstract":"A control unit 3 of a flow rate control system 1 comprises: a recording unit 31 for recording measured values of a pressure sensor P and a temperature sensor T, a storage unit 32 for storing volume data between a first valve V1 and a second valve V2 corresponding to the measured value of the pressure sensor P, and an arithmetic unit 33 for calculating a flow rate based on a first pressure value P1 and a first temperature value T1 measured after opening the first valve V1 and the second valve V2 to flow a gas and then closing the first valve V1 and the second valve V2 simultaneously in a state where the gas is flowing; a second pressure value P2 and a second temperature value T2 measured after opening the first valve V1 and the second valve V2 to flow a gas, closing the second valve V2 in a state where the gas is flowing, and then closing the first valve V1 after a predetermined time Δt has elapsed; and a volume value V between the first valve V1 and the second valve V2 which corresponds to the second pressure value P2. "},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Flow rate control system and flow rate measurement method","description":"A control unit 3 of a flow rate control system 1 comprises: a recording unit 31 for recording measured values of a pressure sensor P and a temperature sensor T, a storage unit 32 for storing volume da","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11519769","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-11519769","citation_suggestion":"Patentable. \"Flow rate control system and flow rate measurement method\" (US-11519769). https://patentable.app/patents/US-11519769","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11519769","json":"https://patentable.app/api/llm-context/US-11519769","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T05:12:53.296Z"}