Electrical switch
US5597990A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 8, 1994 |
| Grant date | Jan 28, 1997 |
| Priority date | — |
| Expiry date | Nov 8, 2014 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H13/28
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Electrical switch, especially for detecting the presence of an electronic memory card in a card reader device. An electrical switch (10) includes a trigger button (14) which is slidingly mounted in a switch box (12), a mobile contact element (62) which is connected to the button (14) and which interacts with at least fixed contact element (50,52) carried by the box (12) of the switch, and a spring and the mobile contact element (44,62) elastically returns the button (14) to a stable inactive position, in which the value of the reutrn force (F) decreases when the actuation travel (C) of the button (14) exceeds a predetermined value (C1), characterized in that the predetermined value (C1) of the travel corresponds to the triggering of the switch.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.