Aerosol delivery article
Patent 5388574 Issued on February 14, 1995. Estimated Expiration Date: 
July 29, 2013. 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.
July 29, 2013. 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 ReferencesInventorApplicationNo. 099015 filed on 07/29/1993US Classes:128/203.17, Electrically heated means producing water vapor128/200.16, Ultrasonic128/203.26Means for heating treating agent, respiratory gas, or mixture thereofExaminersPrimary: Burr, Edgar S.Assistant: Raciti, Eric P. International ClassesA61M 015/00203.16 203.17 203.26 AbstractAn aerosol delivery article provides delivery of aerosol particles of relatively small size without the necessity of exposing the material which is aerosolized to a significant degree of heat or high temperatures. An aerosol forming material is a multi-component material comprising an active ingredient and another ingredient having a relatively low vaporization temperature, and preferably that aerosol forming material is in the form of an emulsion. The aerosol forming material is nebulized so as to provide first stage multi-component aerosol particles of fairly large size. The first stage aerosol particles then are subjected to heat so as to vaporize the other ingredient of that aerosol and cause further dispersion of that first stage aerosol. As such, a second stage aerosol composed of fine particles of active ingredient is provided. The heat used to cause the further dispersion of the first stage aerosol is less than that sufficient to cause vaporization, thermal decomposition or undesirable chemical alteration of the active ingredient.Other References
Field of SearchLIQUID MEDICAMENT ATOMIZER OR SPRAYERWith tongue depressor Ultrasonic Rotating Spray impinged against baffle in or adjacent flow conduit Means for selectively dispensing different fluids Gas stream aspirating medicament from reservoir Gas flow induced by expansion chamber device (e.g., piston/cylinder ram, squeeze bulb, etc.) Pre-pressurized container holding medicament | |
