Patent ID: 6844104
Filing Date: 2005-01-18
Classification: H01M,Y02E

Abstract:
1. Vent plug system, for a cell opening of a storage battery comprising: a plug element incorporating an inner cartridge and a valve element, said plug element being cup-shaped and having a first outer contour designed for insertion in and sealing of the cell opening, with an interior cavity and with a gas port between said cavity and an outside, said inner cartridge being essentially cylindrical and having a second outer contour designed for insertion in the cavity of the plug element and including a gas passage that opens into said cavity, while the valve element is designed as a separate entity which can be locked in place in the cavity by the inner cartridge and which as a function of the gas pressure establishes a gas-flow connection between the gas passage of the inner cartridge and the gas port of the plug element, the inner cartridge and the plug element can be joined in gas-tight fashion and the inner cartridge is provided with an installation fitting which in the assembled state of the system protrudes at least partly from the cavity of the plug element, wherein the installation fitting consists of two concentrically positioned annular elements.