{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9804010","patent":{"patent_number":"US-9804010","title":"Method of, and apparatus for, regulating the mass flow rate of a gas","assignee":null,"inventors":[],"filing_date":"2013-05-23T00:00:00.000Z","publication_date":"2017-10-31T00:00:00.000Z","cpc_codes":["G05D","G05D"],"num_claims":17,"abstract":"There is provided a method of automatically controlling the mass flow rate of a gas through an orifice through which, in use, choked flow is arranged to occur. The method uses an electronic valve located downstream of a gas source, a piezoelectric oscillator in contact with the gas upstream of the orifice and downstream of the electronic valve and a temperature sensor. The method comprises: a) driving the piezoelectric crystal oscillator at a resonant frequency b) measuring the resonant frequency of the piezoelectric oscillator c) measuring the temperature of the gas; and d) controlling the electronic valve in response to the resonant frequency of the piezoelectric oscillator and the temperature of the gas in order to regulate the mass flow rate of gas through said orifice."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Method of, and apparatus for, regulating the mass flow rate of a gas","description":"There is provided a method of automatically controlling the mass flow rate of a gas through an orifice through which, in use, choked flow is arranged to occur. The method uses an electronic valve loca","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9804010","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-9804010","citation_suggestion":"Patentable. \"Method of, and apparatus for, regulating the mass flow rate of a gas\" (US-9804010). https://patentable.app/patents/US-9804010","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9804010","json":"https://patentable.app/api/llm-context/US-9804010","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T15:30:57.670Z"}