Electrical switch combined with fluid control device
US4054761A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 17, 1976 |
| Grant date | Oct 18, 1977 |
| Priority date | — |
| Expiry date | Feb 17, 1996 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H3/0206
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A combined electrical switch and fluid control device, in which the switch comprises a casing having an insulating wall, a slider movable in the casing and carrying a contactor having first and second contact points, and first and second contact bars mounted on the insulating wall opposite the contactor, the first bar being engageable by the first contact point, the first and second bars having first and second segments projecting laterally therefrom for successive engagement by the second contact point, the first and second segments having a narrow gap therebetween of less width than the width of the second contact point, whereby such point wll ride between such segments without engaging the insulating wall to avoid burning of such wall and to avoid contamination of the second contact point by such wall.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.