{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9812270","patent":{"patent_number":"US-9812270","title":"Interlock circuit and image forming apparatus","assignee":null,"inventors":[],"filing_date":"2015-11-23T00:00:00.000Z","publication_date":"2017-11-07T00:00:00.000Z","cpc_codes":["G05B","G05B"],"num_claims":5,"abstract":"An interlock switch is turned on to close a power supply line when a cover is closed, and turned off to open the power supply line when the cover is opened. A time constant circuit is connected to a node side of the interlock switch in the power supply line. A switch control unit determines that a user is intentionally turning on and off the interlock switch and turns off a switch Q1 when a smoothed voltage obtained by smoothing a voltage difference between voltage dividing nodes becomes larger than a threshold value."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Interlock circuit and image forming apparatus","description":"An interlock switch is turned on to close a power supply line when a cover is closed, and turned off to open the power supply line when the cover is opened. A time constant circuit is connected to a n","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9812270","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-9812270","citation_suggestion":"Patentable. \"Interlock circuit and image forming apparatus\" (US-9812270). https://patentable.app/patents/US-9812270","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9812270","json":"https://patentable.app/api/llm-context/US-9812270","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T06:43:15.080Z"}