Process for maintaining liquid supply
US4782451A · kind A · utility
56Cited by
7References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 8, 1987 |
| Grant date | Nov 1, 1988 |
| Priority date | — |
| Expiry date | Sep 8, 2007 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF17C2250/0434
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method for ensuring that sufficient liquid is maintained in a liquid reservoir which is distant from a liquid supply station, comprising periodically determining the amount of liquid in the reservoir and sending the periodic determinations to a signal receiver for determination of the actual usage rate of liquid from the reservoir, sending a signal from the receiver to a remote supply station if certain defined mathematical operations indicate that liquid resupply is needed, and sending liquid from the remote supply station to the liquid reservoir.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.