Apparatus & method for selectively activating plural electrical loads at predetermined relative times
US4409897A · kind A · utility
11Cited by
11References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 1, 1981 |
| Grant date | Oct 18, 1983 |
| Priority date | — |
| Expiry date | Oct 1, 2001 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG04F1/005
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Separate electrical timing and load activation devices are provided for each of plural electrical loads and each device is connected to receive reference timing signals from a central unit. Each of the separate timing and load activation devices measures a reference time interval accurately defined by the reference timing signals and subsequently activates its associated electrical load after a respectively corresponding predetermined time delay which is determined as a function of the locally measured reference time interval.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.