Apparatus for administration of a gas to a human and the exhausting thereof
Patent 4151843 Issued on May 1, 1979. Estimated Expiration Date: 
November 14, 1997. 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 14, 1997. 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 ReferencesInventorsApplicationNo. 05/851471 filed on 11/14/1977US Classes:128/205.25, Face mask covering a breathing passage128/204.24, Fluidic control device utilizing Coanda effect or jet impingement to alter fluid flow128/205.13, Respiratory gas supplied from expandable bag, bellows, or squeeze bulb128/207.18, Respiratory gas supply means enters nasal passage128/910ANESTHESIA GAS SCAVENGING SYSTEMExaminersPrimary: Recla, Henry J.Attorney, Agent or FirmInternational ClassesA61M 16/20 (20060101)A61M 16/06 (20060101) A61M 16/00 (20060101) AbstractAn apparatus for administration of a gas to a human and the exhausting thereof including a gas flow control connected to one end of a gas administering device which has on the other end protrusions for sealing engagement with nostrils of the nose. A gas supply conduit is connected to the gas flow control and a gas exhaust conduit is connected to the gas flow control, the gas flow control causes an intake of gas through the supply conduit and said gas administering device and out said protrusions thereon upon inhalation of a user of the apparatus. The gas flow control causes the exhausting of exhaust gas from said gas administering device through said gas flow control and out said gas exhaust conduit to a gas collector upon expiration of the user of the apparatus.The gas flow control causes the flow of fresh gas through a supply conduit to be blocked during user expiration. | |
