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| Number | Title | Issue Date |
| 4173890 | By-pass flowmeter A by-pass flowmeter of coaxial design comprises a transparent outer tube and a rotameter coaxially disposed within the outer tube and laterally spaced therefrom to define an annular by-pass chamber. An inlet is at least partially disposed within one end o... | 11/13/1979 |
| 4100801 | Mass flow sensing system A mass flow sensor system for measuring the flow rate of a fluid in a sensing tube at diverse angular attitudes. Output signal distortion is minimized by neutralizing the effects of convection forces. The sensing tube is formed as a by-pass coupled to a f... | 07/18/1978 |
