Breath activated medication spray
Patent 4648393 Issued on March 10, 1987. Estimated Expiration Date: 
November 2, 2004. 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.
November 2, 2004. 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 3566387 3584621 3636949 3812854 Metering system for stimulating bronchial spasm Inhalator Patent #: 4334531 InventorsAssigneeApplicationNo. 06/667544 filed on 11/02/1984US Classes:128/200.23Pre-pressurized container holding medicamentExaminersPrimary: Recla, Henry J.Attorney, Agent or FirmInternational ClassesA61M 15/00 (20060101)A61M 16/00 (20060101) AbstractAn inhalation device for dispensing a medicament from a metered dosage cartridge that includes a hand-held housing having a mouthpiece and a passageway for ambient air, a triggering mechanism mounted in the housing, a biasing device for moving the cartridge to operative relationship with the passageway upon activation by the triggering mechanism, and a battery-powered circuit in the housing including a switch associated with the passageway and a solenoid operated mechanism secured to the housing for activating the trigger mechanism, with the switch acting to close the circuit and so activate the solenoid so as to activate the trigger mechanism and the biasing device so that the cartridge positions an activated outlet pin into the passageway. The switch is activated by the pressure of the passage of air drawn through the passageway by the inhaling action of the patient. | |
