{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11307179","patent":{"patent_number":"US-11307179","title":"Liquid feeding device and fluid chromatograph","assignee":null,"inventors":[],"filing_date":"2017-10-23T00:00:00.000Z","publication_date":"2022-04-19T00:00:00.000Z","cpc_codes":["G01N","G01N","G01N","G01N"],"num_claims":6,"abstract":"The liquid feeding device includes a discharge speed calculation part configured to calculate a discharge speed v of the plunger pump so that a converted value LATM under an atmospheric pressure of a flow rate LPRE of the mobile phase discharged to the discharge channel from the pump part becomes a set flow rate LSET using a volume V of the mobile phase in the pump chamber of the closing pump immediately before the precompression process is started, a volume ΔV reduced due to the precompression process of the mobile phase in the pump chamber of the closing pump, and a feeding pressure P; and a discharge operation controller configured to control a discharge speed of the plunger pump to a discharge speed v calculated by the discharge speed calculation part."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Liquid feeding device and fluid chromatograph","description":"The liquid feeding device includes a discharge speed calculation part configured to calculate a discharge speed v of the plunger pump so that a converted value LATM under an atmospheric pressure of a ","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11307179","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-11307179","citation_suggestion":"Patentable. \"Liquid feeding device and fluid chromatograph\" (US-11307179). https://patentable.app/patents/US-11307179","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11307179","json":"https://patentable.app/api/llm-context/US-11307179","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T12:44:07.659Z"}