Switch assembly and mobile storage unit using the assembly
US5050941A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 7, 1990 |
| Grant date | Sep 24, 1991 |
| Priority date | — |
| Expiry date | Feb 7, 2010 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H2239/058
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The housing of a switch assembly has four plastic walls which are joined integrally during molding and encompass a nominally open area. A panel spans across the front of the opening and is molded integrally with the walls. The panel has a laterally extending slit and several slits which are perpendicular to the lateral slit and divide the panel into cantilever supported deflectable push button switch operators. At the front of the switch housing and covering part of the area of the opening is a swingable door which conceals a multiple contact connector. Several different types of key devices are adapted for plugging into the connector for modifying the ordinary functions of the switch assembly. When used on a mobile storage system unit, one key overrides the controls when a safety device is activated. Another key device can be plugged in to dominate control over the normal push buttons of the switch assembly. Another key device is adapted to supply emergency power from a battery power pack. One of the push buttons of the switch assembly is provided with light transmitting arrows and there are an array or red and green LED's mounted on a circuit board behind these oppositely pointin…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.