Method for flow control monitoring
US4601700A · kind A · utility
12Cited by
2References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 21, 1984 |
| Grant date | Jul 22, 1986 |
| Priority date | — |
| Expiry date | May 21, 2004 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M5/16809
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A flow status monitoring method is disclosed for a gravity flow metering system employing a metering chamber separated by a movable diaphragm into two compartments, each with a valved inlet and valved outlet. The system alternately opens pairs of valves on opposite sides of the diaphragm at preselected time intervals to deliver a fixed increment of fluid. Each preselected interval is divided into a series of discrete sub-intervals, and flow monitoring information is generated by displaying a a discrete indicator representative of the sub-interval in which movement of the diaphragm across the chamber is completed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.