Vapor sensing instrument for ultra trace chemical detection
October 16, 2021. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesApparatus for failure prediction of earth structures Ring opening polymerization of 3,4-dimethylene cyclobutene and derivatives thereof Method of measuring the strength of concrete for slip form process High energy polymers formed by ring opening metathesis polymerization Fiber optic detector for immuno-testing Detection device for high explosives Electroluminescent polymers, processes for their use, and electroluminescent devices containing these polymers Calixarene-based transition metal complexes and photonic devices comprising the same Derivatized polythiophenes and devices comprising same Conjugated polymer exciplexes and applications thereof Inventors
AssigneeApplicationNo. 978491 filed on 10/16/2001US Classes:422/91, With photometric detector422/82.08, Fluorescence436/106, NITROGEN CONTAINING436/172With fluorescence or luminescenceExaminersPrimary: Snay, JeffreyAttorney, Agent or FirmInternational ClassG01N 021/64AbstractA detector for detecting vapors emitted from energetic compounds includes a housing, a pump and a sensing assembly. The housing has an inlet, an outlet and an enclosed sensing volume there between. The pump communicates with the housing for moving a carrier gas sequentially through the enclosed sensing volume at a predetermined flow rate. The sensing assembly senses the vapors of the energetic compound delivered by the carrier gas as the carrier gas passes through the housing. The sensing assembly includes a sensing unit constructed of an amplifying fluorescent polymer, a source of excitation, a light detector, and a convertor assembly. |
| ||||||||||||||
