Electrical fluid heater
US3983359A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 10, 1974 |
| Grant date | Sep 28, 1976 |
| Priority date | — |
| Expiry date | Sep 10, 1994 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05D23/24
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
An electric fluid heater includes a metallic container defining a heating chamber provided with a pair electrodes for passing electric current through the fluid for heating the fluid. The container has a fluid input port, a fluid output port and a safety port all communicating with the heating chamber. The ports have a reduced aperture portion of a substantial length to increase the resistance of the current leakage path from the electrodes to external ground connections. All surfaces of the metallic container including the fluid contacting surfaces of the heating chamber and ports are covered by an electrically insulative coating. An external pressure relief valve is connected to the safety port.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.