Door insulator with safety plug
US6658204B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 16, 2002 |
| Grant date | Dec 2, 2003 |
| Priority date | — |
| Expiry date | Apr 16, 2022 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF24H9/2021
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A water heater that includes a tank, an electrical component, and an electrical circuit. The tank defines a water chamber and includes an outer surface. The electrical component is coupled to the outer surface of the tank and extends from the outer surface of the tank. The electrical circuit electrically connects the electrical component and provides electricity to the electrical component when the electrical circuit is closed and does not provide electricity to the electrical component when the electrical circuit is open. A door assembly is movable between an open position and a closed position, and the door assembly includes a connecting device mounted to the door assembly. The connecting device closes the electrical circuit when the door assembly is in the closed position and opens the electrical circuit when the door assembly is in the open position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.