{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-8539983","patent":{"patent_number":"US-8539983","title":"By-pass valve for heat exchanger","assignee":null,"inventors":[],"filing_date":"2011-01-28T00:00:00.000Z","publication_date":"2013-09-24T00:00:00.000Z","cpc_codes":["G05D"],"num_claims":11,"abstract":"A by-pass valve for a heat exchanger circuit. The by-pass valve includes a housing defining a serially communicating first bore, second bore and third bore substantially aligned along a central axis with a valve seat facing the first bore at a juncture between the first bore and second bore and a spring seat facing the second bore at a juncture between the second bore and third bore, the first bore, second bore and third bore forming at least a portion of a closable flow path between a first opening and a second opening in the housing. An actuator located in the housing has a reciprocating seal disposed for movement along the central axis for engaging the valve seat and closing a valve opening between the first bore and second bore. A coiled return spring is mounted in the housing for urging the reciprocating seal towards the first bore to open the valve opening, the return spring having a first end acting on the reciprocating seal and a second end engaging the spring seat. The second bore and third bore each have a different cross-sectional shape transverse to the central axis."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"By-pass valve for heat exchanger","description":"A by-pass valve for a heat exchanger circuit. The by-pass valve includes a housing defining a serially communicating first bore, second bore and third bore substantially aligned along a central axis w","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-8539983","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-8539983","citation_suggestion":"Patentable. \"By-pass valve for heat exchanger\" (US-8539983). https://patentable.app/patents/US-8539983","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-8539983","json":"https://patentable.app/api/llm-context/US-8539983","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T15:35:20.866Z"}