{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9791389","patent":{"patent_number":"US-9791389","title":"Pre-stressed gamma densitometer window and method of fabrication","assignee":null,"inventors":[],"filing_date":"2016-09-23T00:00:00.000Z","publication_date":"2017-10-17T00:00:00.000Z","cpc_codes":["G01N","G01N","G01N","G01N"],"num_claims":20,"abstract":"A gamma densitometer window is provided along with a method of fabrication thereof. The window comprises a plate of non-metallic, preferably gamma transparent, material having a first face and a second face opposing one another and having an outer edge defined therebetween. The window further comprises a metallic frame member fitted around the outer edge of the plate and adapted to pre-load the plate with a compressive stress that is sufficiently high such that the sum of the compressive stress, tensile stress and shear stress components generated in the plate under high-pressure conditions is always compressive. The method of fabrication shrink fitting the metallic frame member around the outer edge of the plate at a shrink-fit temperature such that the metallic frame member applies a compressive stress to the plate at any temperature below the shrink-fit temperature."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Pre-stressed gamma densitometer window and method of fabrication","description":"A gamma densitometer window is provided along with a method of fabrication thereof. The window comprises a plate of non-metallic, preferably gamma transparent, material having a first face and a secon","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9791389","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-9791389","citation_suggestion":"Patentable. \"Pre-stressed gamma densitometer window and method of fabrication\" (US-9791389). https://patentable.app/patents/US-9791389","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9791389","json":"https://patentable.app/api/llm-context/US-9791389","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T05:17:15.653Z"}