Pneumatic seal
AssigneeLe Joint Francais
InventorJean Fournier
Life of this patent
Estimating the term…
Abstract
Pneumatic seal consisting of a flattened casing forming a base onto which are folded back symmetrically double thickness of two lateral walls. Such a seal has, in the "rest" position, a cross-section having a very slight height and, in the "inflated" position, a cross-section in height greater than that of known seals. Such a seal is intended to provide sealing between mobile elements belonging to sealed enclosures, for example at the level of the doors of those enclosures.
Claims8
In an inflatable and deflatable pneumatic seal consisting of a profiled casing made of an elastic material, the improvement wherein in the deflated condition, the casing comprises a flat base, a top collapsed on said base and at least one double thickness lateral sidewall which is at least folded in and down on the collapsed top.
Dependencies are inferred from the claim text.