Housing for a micro-switch unit
US5113046A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 3, 1990 |
| Grant date | May 12, 1992 |
| Priority date | — |
| Expiry date | Dec 3, 2010 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H9/04
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A commercially available micro-switch is enclosed in a two-piece plastic housing which is provided with centering pins. A tab and slot connection forms a labyrinth between the two housing halves and helps protect the interior from intrusion by dust and water. A mechanical actuator is preferably a U-shaped configuration of flat spring steel with one leg located inside the housing and with another leg located outside the housing. The inner leg of the actuator is divided into a first curved tongue and a second tongue. The second tongue extends along an interior of a side wall of the housing and has a free end which engages the micro-switch unit. A base which connects the inner and outer legs extends through an aperture in the housing and is supported, free from any wear, by an O-ring seal between both housing halves.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.