Smoking articles utilizing electrical energy
Patent 4947874 Issued on August 14, 1990. Estimated Expiration Date: 
September 8, 2008. 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.
September 8, 2008. 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 1771366 1968509 2057353 2104266 2974669 3200819 3889690 3918464 Synthetic smoking product Water pipe InventorsAssigneeApplicationNo. 242086 filed on 09/08/1988US Classes:131/329, TOBACCO USERS' APPLIANCE128/202.21, Smoking device simulator128/203.26, Means for heating treating agent, respiratory gas, or mixture thereof128/203.27, Electric128/204.21, Electric control means131/194, Heat exchanging and/or insulating131/273Smoking simulatorExaminersPrimary: Millin, V.Foreign Patent References
International ClassesA24D 001/00A24F 001/00 A24F 047/00 A61M 016/00 AbstractSmoking articles employ an electrical resistance heating element and an electrical power source to provide a tobacco-flavored smoke or aerosol and other sensations of smoking. The smoking articles advantageously comprise a disposable portion and a reusable controller. The disposable portion, which may be a cigarette, normally includes (i) an air permeable resistance heating element having a surface area greater than 1 m2 /g, which usually carries an aerosol forming material, and (ii) a charge or roll of tobacco. The reusable controller normally includes a puff-actuated current actuation means, a time-based current regulating means to control the temperature of the heating element, and a battery power supply.Other References
Field of SearchTOBACCO USERS' APPLIANCEHeat exchanging and/or insulating Smoking simulator Smoking device simulator Means for quickly connecting or disconnecting apparatus components Means for mixing treating agent with respiratory gas Means for supplying anesthetic under patient's control Particulate treating agent carried by breathed gas Electric control means Electrically heated means producing water vapor Means for heating treating agent, respiratory gas, or mixture thereof Electric Treating agent evaporated from extended surface absorbent (e.g., sponge, fibrous wick, screen, etc.) | |
