Control circuit for controlling decorative light string
US6091204A · kind A · utility
Inventor
Key dates
| Filing date | Nov 25, 1998 |
| Grant date | Jul 18, 2000 |
| Priority date | — |
| Expiry date | Nov 25, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B39/09
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A control circuit for controlling a decorative light string by using a number of three-wire flashing control lamps is disclosed. In the circuit, a common contact of latter switching type three-wire flashing control lamp is connected to a normal open contact of former three-wire flashing control lamp. A normal closed contact of each three-wire flashing control lamps is connected with a light string including a plurality of regular lamps electrically connected in series. A two-wire flashing control lamp is further connected between the normal open contact of one of the switching type three-wire flashing control lamp and the light string connected thereto.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.