Remote status indicator for holding tanks containing no moving parts
US5589823A · kind A · utility
13Cited by
14References
20Claims
0Family size
Inventor
Key dates
| Filing date | Dec 29, 1994 |
| Grant date | Dec 31, 1996 |
| Priority date | — |
| Expiry date | Dec 29, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01F23/247
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A transistor and integrated circuit-free remotely indicating status device for holding tanks for recreational vehicles and pleasure boats contains no moving parts, is resistant to corrosion, and is inexpensively and simply manufactured and installed. In one embodiment, common LED indicating devices may be alternatively toggled between water tank and waste tank sensor circuits.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.