Pressure-operated switch for a high-voltage interrupting module
US4499446A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 22, 1983 |
| Grant date | Feb 12, 1985 |
| Priority date | — |
| Expiry date | Aug 22, 2003 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H9/106
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An improved switch for a high-voltage device in which ignition of a power cartridge generates pressure at one end of an insulative piston to move the piston, located in a conductive member, into a passageway in an insulative liner, said piston moving a contact through the passageway and away from the conductive member to break an electrical interconnection between the conductive member and the movable contact, PA1 an insulative lip seal located in the bore between the power cartridge and the one end of the piston, the lip seal being movable with the piston and being conformally force-fit into the bore, and PA1 means limiting movement of the lip seal through the bore so that the lip seal remains in the bore after the switch is open restricting the flow of the ignition products of the power cartridge.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.