Patent ID: 7228875
Filing Date: 2007-06-12
Classification: F16K,H01M,Y02E,Y10T

Abstract:
1. A sealing and breathing valve assembly for electrical accumulators, comprising: at least one substantially tubular collar, associated to a cover of said accumulator and suitable for connecting the external environment with one or more breathing ducts made in said cover; an elastic cap coupled to the external surface of said tubular collar, the cap having a closed end, an open end and a tubular side section, said side section comprising first and second cylindrical parts abutting to each other, the wall thickness of the first part contiguous to the closed end being thinner than the wall thickness of the second part contiguous to the open end, the wall thickness of the first part is the same along its whole circumference and the wall thickness of the second part is the same along its whole circumference and both parts have inner surface portions in contact with the outer surface of said collar, said cap seals the tubular collar with its bottom surface and with the inner surface portion of the side section.