Vent valve and a storage cell including it
First Claim
1. A vent valve including an elastic seal compressed by a first wall against an orifice in a second wall and surrounded by a third wall, which seal has a section in a plane parallel to said first wall or to said second wall having three vertices disposed in a triangle, said three vertices of said section of said seal being connected in pairs by respective circular arcs.
3 Assignments
0 Petitions
Accused Products
Abstract
A vent valve includes a vent cap closed by a cover plate with an orifice through it. The vent cap has a circular section and includes two diametrally opposed vent holes on its circumferential wall. An elastic seal having three vertices arranged in a triangle and connected in pairs by respective circular arcs—and preferably in the shape of a REULEAU triangle—is compressed between the bottom of the vent cap and the cover plate. The seal therefore blocks the orifice. If the fluid pressure at the orifice is sufficiently high, the fluid compresses the seal further and makes a path for itself between the seal and the cover plate and then escapes through the vent holes. The vent valve is suitable for use in a storage cell, in which case the cover plate can be used to close its casing.
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Citations
24 Claims
- 1. A vent valve including an elastic seal compressed by a first wall against an orifice in a second wall and surrounded by a third wall, which seal has a section in a plane parallel to said first wall or to said second wall having three vertices disposed in a triangle, said three vertices of said section of said seal being connected in pairs by respective circular arcs.
Specification