Automotive backlight heater and timing control means
US4347444A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 7, 1980 |
| Grant date | Aug 31, 1982 |
| Priority date | — |
| Expiry date | Feb 7, 2000 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H50/021
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electrical switching and timing assembly is shown having a manually actuatable switch selectively closable and openable, an associated electrical circuit has an input end and an output end, the input end is intended for connection to a source of electrical potential while the output end is intended for connection to an electrical load, the associated circuit has a timing circuit effective for opening the associated circuit within a preselected span of time after the associated circuit has been closed by the manually actuatable switch, the manually actuatable switch being effective for opening the associated circuit even before the expiration of the preselected span of time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.