Interlock switch for appliances
US5780792A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 21, 1996 |
| Grant date | Jul 14, 1998 |
| Priority date | — |
| Expiry date | Jun 21, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H9/226
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electrical appliance includes an appliance base, a cover, power lines carrying electrical power to the appliance base, an interlock switch, and a fastener. The interlock switch has a switch case and a switch within the switch case. The switch case is affixed to the appliance base, the switch is in one of the power lines, and the switch has an open position and a closed position. The fastener is arranged to fasten the cover to the appliance base so that the fastener holds the switch in its closed position when the cover is fastened by the fastener to the appliance base and allows the switch to move to its open position when the cover is not fastened by the fastener to the appliance base.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.