Electromagnetic plunger drop timer
US4270086A · kind A · utility
0Cited by
4References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 15, 1979 |
| Grant date | May 26, 1981 |
| Priority date | — |
| Expiry date | May 15, 1999 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG04F10/04
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The time of travel of an electromagnetic rapping device plunger is measured between two predetermined points so that the height of lift of the plunger and the terminal velocity can be determined.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.