Control member for a valve and method for determining fluid flow rate through a valve
Patent 6357463 Issued on March 19, 2002. Estimated Expiration Date: 
June 21, 2020. 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.
June 21, 2020. 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 ReferencesElectrohydraulic control system Electrical measured value processing for a control valve Direct-operated servo valve, fluid pressure servo mechanism and control method for the direct-operated servo valve 5522416 InventorsApplicationNo. 598053 filed on 06/21/2000US Classes:137/12, By fluid pressure137/487.5Electrically actuated valveExaminersPrimary: Michalsky, Gerald A.Attorney, Agent or FirmInternational ClassG05D 007/06Foreign Application Priority Data1998-08-07 AUAbstractThe present invention has been developed primarily for a flow diverting valve used in controlling the pressure and flow rate, and measuring the flow rate, of a breathable gas supplied to the airways of a patient by a breathable gas supply apparatus during, for example, nasal Continuous Positive Airway Pressure (CPAP) treatment of Obstructive Sleep Apnea (OSA) and ventilatory assistance treatments such as non-invasive positive pressure ventilation (NIPPV). | |
