Mass flowmeter having non-adjustable flow splitter
Patent 5305638 Issued on April 26, 1994. Estimated Expiration Date: 
March 20, 2012. 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.
March 20, 2012. 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 ReferencesWide-range, adjustable flowmeter Flowmeter Flow dividing structure of mass flow controller Patent #: 5099881 InventorsAssigneeApplicationNo. 854498 filed on 03/20/1992US Classes:73/202, Proportional137/599.13Including flowmeterExaminersPrimary: Goldstein, HerbertAttorney, Agent or FirmInternational ClassG01F 005/00AbstractA split path mass flowmeter includes a housing having a longitudinally extending bore within which a flow splitter is positioned. The flow splitter includes a tapered portion having a taper corresponding generally to that of a tapered portion of the bore. The tapered portion of the flow splitter is nested within the tapered portion of the bore, the tapered portions of these elements thereby forming a self-holding retention section for non-adjustably retaining the flow splitter within the bore. The retention section may taper outwardly or inwardly in the direction of fluid flow. A calibration section may precede or follow the retention section or may be combined into the retention section. Further, a recovery section may be separately disposed downstream of the retention and calibration sections or may be combined along with the calibration function in the retention section. | |
