Hydraulic dashpot
AssigneeLisega GmbH
InventorLothar Zschiesche
Life of this patent
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Abstract
A hydraulic dashpot comprising a cylinder, a piston separating the cylinder into a pair of chambers, a rod connected to the piston and projecting outwardly of the cylinder, a storage chamber for compensating hydraulic fluid, and a passage for conducting compensating fluid between the storage chamber and the pair of chambers. A first valve is provided in the passage for controlling fluid flow between the passage in at least one of the pair of chambers with the first valve being accommodated in a first valve body. A second valve is immediately upstream of the first valve body and closes fluid communication through the passage in a direction away from the storage chamber in automatic response to the removal of the first valve body from the passage.
Claims14
A hydraulic dashpot comprising a cylinder, a piston separating said cylinder into a pair of chambers, a rod connected to said piston and projecting outwardly of said cylinder, means for defining a storage chamber for compensating fluid, passage means for conducting compensating fluid between said storage chamber and said pair of chambers, first valve means in said passage means for controlling fluid flow between said passage means and at least one of said pair of chambers, a first valve body accommodating said first valve means, and second valve means immediately upstream of said first valve body for closing fluid flow through said passage means in a direction away from said storage chamber in automatic response to the removal of said first valve body from said passage means wherein the first valve means be removed and repaired, if necessary, without affecting the integrity of the storage chamber.
Dependencies are inferred from the claim text.