Controlling the supply of electric current to a room
US3967545A · kind A · utility
8Cited by
5References
17Claims
0Family size
Inventor
Key dates
| Filing date | Feb 10, 1975 |
| Grant date | Jul 6, 1976 |
| Priority date | — |
| Expiry date | Feb 10, 1995 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05D23/275
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A method and installation in which electric current supplied to a room is controlled in dependence on the temperature of a pipe for supplying water to an outlet in the room. In a particular application, a steam exhaust fan mounted in a bathroom ceiling is turned on and off at particular predetermined temperatures of a pipe connected to supply hot water to a tap in the room. A general purpose adaptor for inserting electric circuit elements into series in an existing circuit is also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.