Armored axially displaceable sealing apparatus
US4825023A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 22, 1986 |
| Grant date | Apr 25, 1989 |
| Priority date | — |
| Expiry date | Sep 22, 2006 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H13/063
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An axially displaceable armored sealing apparatus for push button switches and the like. The apparatus includes a sealed nut unit connected to an anvil for actuating the plunger of a switch by means of a flexible elastomeric member forming a cavity for the plunger of the switch. The anvil is connected to a moveable armored cap that fits over the end of a stationary metal cylinder supported by the nut and which cap is axially displaceable with respect to the stationary cylindrical portion of the sealing apparatus. The displacement required to actuate the switch is less than the displacement necessary to cause the movable armored cap to contact either the flexible elastomeric member or the stationary cylindrical portion of the sealing apparatus.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.