Electric igniter actuator with network voltage clocking to pass only a portion of the wave trains to the igniter
US5416300A · kind A · utility
9Cited by
16References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 25, 1994 |
| Grant date | May 16, 1995 |
| Priority date | — |
| Expiry date | Feb 25, 2014 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M5/257
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
An automatic furnace comprises an actuator for an electric igniter. The electric igniter has a distinctly lower standard voltage, e.g., 120 V, than the network voltage, e.g., 230 V and is operated by the network voltage. The network voltage is fed into the power regulator before the igniter. The power regulator clocks the network voltage with an adjustable keying ratio, so that only part of the full wave trains of the network voltage becomes active at the electric igniter. In an advantageous embodiment, the keying ratio is variegated by the actual level of the network voltage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.