Portable level sensor
US9642737B2 · kind B2 · utility
30Cited by
10References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 20, 2013 |
| Grant date | May 9, 2017 |
| Priority date | — |
| Expiry date | Dec 20, 2033 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2090/063
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A portable level sensor for a flexible bag for collecting a fluid and/or a solid, and a system and method for sensing the content level of a flexible bag using the portable level sensor. The sensor comprises a flexible resistor element with an electrical resistance that changes in dependence upon its degree of flexing, means for attaching the resistor element to an outside surface of the flexible bag and means for periodically polling the electrical resistance of the resistor element and transmitting to a receiver a signal which varies in dependence on the said electrical resistance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.