Pressure sensitive interrupters for capacitors
US4698725A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 21, 1986 |
| Grant date | Oct 6, 1987 |
| Priority date | — |
| Expiry date | Mar 21, 2006 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01G2/14
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A capacitor is electrically disabled to limit internal pressure buildup by attaching its electrical terminals to a first wall portion that bulges in a predetermined direction under internal pressure, providing electrical connections between the terminals and the capacitive element, and associating with a second wall portion (that does not move in the predetermined direction under internal pressure) a disconnect means such that when the first wall portion bulges, the terminals exert a force in the predetermined direction on the connections, which are then severed by a resisting force exerted by the disconnect means. In another aspect, reconnection is prevented by having each electrical terminal connected by a conductor via a predefined pathway to the capacitive element, and providing means for blocking the pathway following disconnection.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.