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| Number | Title | Issue Date |
| 8061195 | Flow control assembly A flow control device for automatically controlling the flow of a fluid at a predetermined rate that is capable of taking measurements of the pressure of the fluid within the device while the device is functioning and that is capable of real-time adjustment of the f... | 11/22/2011 |
| 6457354 | Gas flow sensor Gas flow sensor 10 generally comprises housing 20 defining internal cavity 40, diaphragm assembly 50 separating internal cavity 40 into first chamber 42 in communication with gas inlet 44 and second chamber 46 in communication with gas outlet 49 and havin... | 10/01/2002 |
| 5408886 | Positive displacement piston flow meter with internal valve A piston flow meter for measuring gas flow through the flow meter comprising a hollow precision bore flowtube in a vertical orientation, with a movable piston containing a valve assembly for movement in concert with the piston between opposite ends of the... | 04/25/1995 |
| 5400650 | Apparatus for counting cycles of fluid flow There is provided a counting apparatus which is designed to be located in any position in series with a fluid flow line. The apparatus has a first magnet in an air chamber of the body of the counter. As the fluid passes through the air chamber, the first ... | 03/28/1995 |
| 5209114 | Reciprocating piston flow meter A reciprocating piston flow meter for measuring gas flow through the flow meter comprising a hollow precision bore flowtube in a vertical orientation, with a movable piston containing a valve assembly for movement in concert with the piston between one po... | 05/11/1993 |
