New internal device for valves and air chambers with priority of the french application p v 660.472 of 22-12-53 (Machine-translation by Google Translate, not legally binding)

摘要

New internal device for valves of air chambers, characterized in that the seat of the plug, when the valve is of the type of elastic joint fixed in the vat of the valve pin and constantly attracted against said seat, is finished by a rather thick edge for not deforming the elastic seal by penetration, which remains of an outer diameter smaller than the outer diameter of said valve seat and which is kept in a bucket of less depth than the height of the joint at rest to allow it to deform elastically, limiting entirely these deformations, before they can be permanent, the free edge of the bucket, which arrives, under the high pressures, to lean against the seat of the valve. (Machine-translation by Google Translate, not legally binding)