Slide switch contact having plural flexible slats providing make before break contact engagement
US4042795A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 28, 1976 |
| Grant date | Aug 16, 1977 |
| Priority date | — |
| Expiry date | Jun 28, 1996 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H15/08
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
In an electric switch a slide containing a shorting contact is movable back and forth along a row of at least three fixed electric contacts. The shorting contact is formed from a spring metal strip having an elongated central body between a pair of end portions, the body having contact surface for sliding engagement with the fixed contacts and being long enough to bridge three of them simultaneously. The end portions of the shorting contact extend toward the back wall of the contact-receiving recess in the slide and toward each other to form inclined legs having free ends pressing against the slide to press the contact surface against the fixed contacts. The central body of the shorting contact is provided with at least one slot extending lengthwise of it and into its legs to separate the body into laterally spaced contact bands integrally connected at the free ends of the legs. These bands, in their unstressed condition before the shorting contact is inserted in the slide recess, are bowed lengthwise toward the inclined legs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.