Control unit and electrical switch construction therefor and methods of making such a control unit and electrical switch construction
US4245142A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 7, 1977 |
| Grant date | Jan 13, 1981 |
| Priority date | — |
| Expiry date | Feb 7, 1997 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H37/22
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A control unit having a condition selector, an electrical switch having an actuator unit provided with an adjustable movement differential, a condition responsive device for actuating the switch when the condition responsive device senses certain conditions selected by the selector, and a lever arrangement carried by the unit and being operatively associated with the actuator unit of the switch and the device whereby the device can actuate the switch by the lever arrangement, the lever arrangement having a first adjustable lever operatively interconnected to the selector and acting as a main range lever. The first lever is operatively interconnected to the condition responsive device and to the actuator unit of the switch. The lever arrangement has a second adjustable lever operatively interconnected to the selector and to the actuator unit of the switch for adjusting the movement differential of the actuator unit of the switch.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.