Static electrification assisted dielectrokinesis detection of plastics and other materials
April 28, 2017. 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 References 3771152 Dual line electret transducer Electromechanical transducers Device for measuring the relative position of two objects Continuous sense and locate device Devices designed to measure locally the electric charges carried by dielectrics Capacitive sensor and metal detector with a display for quantitatively displaying signals resulting from concealed objects Apparatus and method for detecting movement of an object Planar interdigitated dielectric sensor Induced electric field sensor InventorAssigneeApplicationNo. 846207 filed on 04/28/1997US Classes:340/573.1, Human or animal324/71.1, DETERMINING NONELECTRIC PROPERTIES BY MEASURING ELECTRIC PROPERTIES324/72, TESTING POTENTIAL IN SPECIFIC ENVIRONMENT (E.G., LIGHTNING STROKE)324/452, A MATERIAL PROPERTY USING ELECTROSTATIC PHENOMENON324/457, ELECTROSTATIC FIELD340/561, Disturbance of electric field340/562, Capacitance340/568.1Article placement or removal (e.g., anti-theft)ExaminersPrimary: Tong, NinaAttorney, Agent or FirmForeign Patent References
International ClassG08B 023/00AbstractA dielectrokinesis detector includes a chamber housing an exact dielectric replicate reference material that is subjected to external static electrification. The reference material is mechanically constrained, enabling the detection of the polarization energy dynamics of constrained dielectrophoretic force indicating the presence of any target with dielectric properties identical to the properties of the reference material. An antenna assembly increases the proximity distance (range) of detection. The static electrification source for the reference material increases the longevity of the detection ability to provide continuous detection capability, and an external electronic circuit source of electrical energy via an electrical current surge gives a quantifiable manifestation of the detection. In accordance with the principals of dielectrophoresis, the detector can detect the presence of a specific material irrespective of the presence or absence of any type of intervening, visual obstructing material structures, barriers or electromagnetic interference (EMI) signals.Other References
Field of SearchDisturbance of electric fieldCapacitance Responsive to intruder energy Electromagnetic energy With bridge Fence Vibration Human or animal DETERMINING NONELECTRIC PROPERTIES BY MEASURING ELECTRIC PROPERTIES TESTING POTENTIAL IN SPECIFIC ENVIRONMENT (E.G., LIGHTNING STROKE) A MATERIAL PROPERTY USING ELECTROSTATIC PHENOMENON ELECTROSTATIC FIELD | |
