专利名称：Dual-Temperature, Sealed-System Critical
Temperature Indicator
发明人：Albert J. Moses,Michael E. Drummond申请号：US12506248申请日：20090720
公开号：US20110011330A1公开日：20110120
专利附图：
摘要：An inexpensive, disposable apparatus that visually indicates whether an objecthas been exposed to either one or both of two predetermined critical temperatures suchas a critical high T or a critical low T temperature. The apparatus includes a housing
having a reservoir portion, and a capillary tube portion with a first, proximal end in fluidconnection with the reservoir portion and an open, second, distal end. A first fluid iscontained within the reservoir portion and a portion of the proximal capillary tubeportion. A second fluid is contained within the capillary portion intermediate the first fluidand the distal end. A barrier is located intermediate the first fluid and the second fluid.The barrier prevents the first and second fluids from intermixing until the apparatus isexposed to T and then allows at least a portion of the second fluid to mix with the firstfluid when the apparatus is exposed to T and irreversibly changes an observablecharacteristic of the second fluid. An indicator material is fixed proximate to and in fluidcommunication with the distal end of the capillary tube portion. The indicator materialhas an observable characteristic that irreversibly changes at T when contacted with thesecond fluid. An outer sheath encapsulates the indicator and the distal open end of thecapillary tube portion to prevent the fluids and barrier from evaporating from thehousing.
申请人：Albert J. Moses,Michael E. Drummond
地址：West Chester PA US,Broomall PA US
国籍：US,US
更多信息请下载全文后查看
因篇幅问题不能全部显示，请点此查看更多更全内容