Flowmeter
Patent 5044199 Issued on September 3, 1991. Estimated Expiration Date: 
November 13, 2009. 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 13, 2009. 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 3381531 3688576 3769835 3792609 3851526 Adjustable laminar flow bypass Variable molecular separator Method and apparatus for splitting a liquid-vapor mixture Patent #: 4662391 InventorsAssigneeApplicationNo. 437053 filed on 11/13/1989US Classes:73/202, Proportional137/561ANon-valved flow dividersExaminersPrimary: Noland, TomAttorney, Agent or FirmForeign Patent References
International ClassG01F 005/00AbstractA flowmeter has an elongated housing with a fluid inlet, a fluid outlet and an axial passage therebetween. The fluid passage contains a flow splitter section and is connected to a flow sensor assembly. The flow splitter section is formed by a surface defining a longitudinal fluid path and a flow splitter secured in the fluid path, so as to form an annular gap between the surface of the fluid path and the flow splitter. The surface of the fluid path defines a tapered calibration bore. The flow splitter has a tapered calibration section comprising the upstream portion of the flow splitter and at least one tapered expansion section comprising the downstream portion of the flow splitter. The taper of the calibration section is substantially parallel to the taper of the calibration bore, and the taper of the expansion section diverges away from the taper of the calibration bore.Other References
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