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US 6,802,408 B2Granted
Fluid damper, particularly for movable pieces of furniture
AssigneeJulius Blum Gesellschaft m.b.H.
InventorBernhard Krammer
Life of this patent
Estimating the term…
Abstract
A fluid damper, in particular for moving furniture parts, includes a cylinder and a piston linearly displaceable within the cylinder. The piston has at least one opening for a damping fluid provided in the cylinder, and the fluid damper further includes at least one movable ring disk in the area of the opening(s). The at least one ring disk (8, 9, 10, 11) is arranged such that it at least partially covers the opening(s) (15) of the piston (3) during the damping stroke of the piston (3).
Claims28
A fluid damper comprising:
- a cylinder having a cylinder chamber;
- a piston linearly movable in said cylinder chamber, said piston having at least one opening to allow a flow of a damping fluid through said piston;
- and
- a plurality of movable ring disks at said piston in said cylinder chamber, at least two of said ring disks each having an opening to allow a flow of the damping fluid through said at least two of said ring disks, said ring disks being arranged so as to gradually reduce the flow of the damping fluid through said at least one opening in said piston during a damping stroke of said piston by each of said ring disks at least partially covering openings in other of said ring disks and in said piston behind said each of said ring disks with respect to a damping stroke direction of said piston.
1 more element
A fluid damper comprising:
- a cylinder having a cylinder chamber;
- a piston linearly movable in said cylinder chamber, said piston having at least one opening to allow a flow of a damping fluid through said piston;
- and
- three movable ring disks at said piston in said cylinder chamber, a first one of said ring disks farthest from said piston having no openings, a second one of said ring disks adjacent to said first one of said ring disks having one opening, and a third one of said ring disks adjacent to said second one of said ring disks having two openings, said ring disks being arranged so as to gradually reduce the flow of the damping fluid through said at least one opening in said piston during a damping stroke of said piston.
1 more element
A fluid damper comprising:
- a cylinder having a cylinder chamber;
- a piston linearly movable in said cylinder chamber, said piston having at least one opening to allow a flow of a damping fluid through said piston;
- and
- at least one movable ring disk at said piston in said cylinder chamber, said at least one ring disk being arranged so as to gradually reduce the flow of the damping fluid through said at least one opening in said piston during a damping stroke of said piston by each of said at least one ring disk at least partially covering openings in said at least one ring disk and in said piston being said each of said at least one ring disk with respect to a damping stroke direction of said piston.
1 more element
Dependencies are inferred from the claim text.