Electric water heater with improved heating element
US6137955A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 4, 1998 |
| Grant date | Oct 24, 2000 |
| Priority date | — |
| Expiry date | Jun 4, 2018 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF24H15/414
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A water heater heating element including a base member adapted to extend through and sealingly engage a wall of a water heater tank, the base member having a recess; a thermistor positioned in the recess; members connected to the thermistor and extending outwardly of the base member to transmit temperature information; a sheathing sealed to and extending outwardly from the base member; a heating coil positioned within the sheathing; cold pins connected to opposed ends of the heating coil and to the base member, the cold pins being sufficiently long that heat generated by the heating coil is not detected by the thermistor; and members connected to the cold pins and extending outwardly of the base member to transmit power to the heating coil.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.