Sealing device
AssigneeHammelmann GmbH
InventorsRené Nölle, Martin Oberscheidt, Gerald Schubring
Life of this patent
Estimating the term…
Abstract
A sealing device comprising an intermediate bushing, which is located between an outer sleeve and an inner member mounted therein so as to be movable relative thereto and which forms a gap seal, is designed in such a way that chambers that can be filled with a pressurized fluid are provided between the intermediate bushing and the adjacent outer sleeve.
Claims11
A sealing device, comprising an intermediate bushing arranged concentrically between an outer sleeve and an inner body and movable relative thereto, the intermediate bushing and the inner body defining a single annular gap therebetween, the bushing cooperating with the outer sleeve the inner body, and a plurality of seals disposed between the outer sleeve and the intermediate bushing to define a plurality of chambers which can be filled with a pressurized liquid, the annular gap simultaneously in fluid communication with all of the plurality of chambers.
Dependencies are inferred from the claim text.