Electrical apparatus including solenoid device and energization control circuit therefor
US4742988A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 23, 1986 |
| Grant date | May 10, 1988 |
| Priority date | — |
| Expiry date | Jan 23, 2006 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F7/1607
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electrical apparatus is disclosed which comprises a combination of a solenoid device such as a solenoid valve, a relay or a plunger driving solenoid device and an energization control circuit which energizes the solenoid device. One end of an electrical cable is connected to the solenoid valve while the other end of the cable is connected to a connector. The electrical cable prevents the transmission of oscillations which the solenoid valve experiences to the connector. The energization control circuit is housed within the connector. The energization control circuit responds to a changing of a given switch from its on to its off condition, by energizing the electrical coil only during a given time interval. When the time interval has passed, it interrupts the energization of the electrical coil, and the energization control circuit itself is substantially disconnected from the power source.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.