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US4837410A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 22, 1988 |
| Grant date | Jun 6, 1989 |
| Priority date | — |
| Expiry date | Jun 22, 2008 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H13/023
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A push-button switch operates by depression of a push-button to move a movable contact into engagement with respective fixed contacts. The push-button when depressed rotates a roller through a predetermined angle by means of interengaging ratchet-type teeth on the push-button and roller respectively. A two-arm lever engages an indented outer surface of the roller, so that forward or reverse pivotal movements of the lever are effected whenever the push-button is depressed. The lever operates the movable contact. The roller also carries a segmented colored disc so that alternating colors are associated with the push-button to represent the respective movable contact positions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.