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US Patent 3990441 - Nebulizer heater
US Patent Issued on November 9, 1976
Estimated Patent Expiration Date:
November 9, 1993Estimated 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.
Estimated Patent Expiration Date:
November 9, 1993Estimated 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.AbstractA humidifying and tempering apparatus for use in an oxygen delivery system and comprising a vessel, a supply of water in the vessel, a nebulizer in the vessel above the water, a supply of oxygen under pressure connected with the nebulizer, an elongate water conducting tube connected with the nebulizer and extending downwardly into and through the water, an elongate resistance heater element concentric within and extending longitudinally of the tube to heat that water drawn through the tube by the nebulizer to be mixed with the oxygen in the upper portion of the vessel and an oxygen delivery line communicating with the vessel above the water and conducting tempered humidified oxygen to a location for use. | InventorsAssigneeApplicationNo. 584731 filed on 06/09/1975US Classes:128/200.18, Spray impinged against baffle in or adjacent flow conduit128/200.21, Gas stream aspirating medicament from reservoir128/203.16, Means for mixing respiratory gas with water vapor and another treating agent128/203.26, Means for heating treating agent, respiratory gas, or mixture thereof128/203.27, Electric128/204.17, Means for heating respiratory gas or respiration device392/406RemovableExaminersPrimary: Michell, Robert W.Assistant: Recla, Henry J. Attorney, Agent or FirmUS Patent References1150619, 1549016, 1554219, 3282266, 3311355, 3458948, 3695516 |
