Drip counter apparatus
US5982289A · kind A · utility
10Cited by
11References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 25, 1998 |
| Grant date | Nov 9, 1999 |
| Priority date | — |
| Expiry date | Sep 25, 2018 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M5/1689
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
In apparatus for counting a succession of falling liquid drops having teardrop shape, with a downwardly convex down side, the combination that includes a beam provider for providing a beam of electromagnetic radiation to sidewardly pass into the drop at its convex lower side, to be refracted within the drop to pass out of the drop at its convex lower side, and a beam detector located to detect the refracted beam that has passed sidewardly out of the drop at its convex lower side.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.