Plug structure and sealed seat thereof, in a 'kamina' system, for closing the holes in electric battery covers

摘要

A closing plug structure and sealing seat thereof in a kamina -type system are disclosed. The structure comprises a plug-carrying strip (9), forming a covering of apertures in the lid of electrolyte electric batteries, provided with a common channel (10), for the conveying of the gases developing from the battery electrolyte, and crossed by a plurality of holes (11), forming housing seats for an equal number of closing plugs (1) of the battery apertures, said plugs being provided with a threaded portion (2) at least in correspondence of the lower part thereof, for the threaded engagement with a threaded seat (15a) of said holes (11). From the body of each of said plugs (1) at least two flexible annular flanges (7, 8) project, formed integrally with a wall (4) of said plug and capable of establishing a seal against the inner wall (13, 14) of the corresponding housing hole (11) thereof in said strip (9).