Motor vehicle shock absorber

US8997952B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-8997952-B2
Application numberUS-201013383456-A
CountryUS
Kind codeB2
Filing dateAug 23, 2010
Priority dateAug 25, 2009
Publication dateApr 7, 2015
Grant dateApr 7, 2015

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  1. Title

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  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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  6. CPC / IPC classifications

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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

A motor-vehicle shock absorber has a tube at least partially filled with damping liquid and extending, a piston rod axially shiftable inside the damper tube, and a piston connected to the piston rod and subdividing the damper tube into a piston rod-side working chamber and an opposite working chamber. An on-off control valve is axially movable inside the piston between a closed and an open position. A first soft-characteristic damping valve inside the piston through which the damping liquid may flow in both flow directions is connectable to a flow path of the damping liquid from one into the other working chamber through the control valve. A second hard-characteristic damping valve through which the damping liquid may flow in both flow directions is also provided in the piston.

First claim

Opening claim text (preview).

The invention claimed is: 1. A shock absorber for a wheel suspension of a motor vehicle, the shock absorber comprising: a damper tube at least partially filled with damping liquid and extending along an axis, a piston rod axially shiftable inside the damper tube, a piston housing connected to the piston rod and subdividing an interior of the damper tube into a piston rod-side working chamber and a working chamber remote from the piston rod, an on-off control valve axially mo…

Assignees

Inventors

Classifications

  • Operations & Transport · mapped topic

  • F16F9/464Primary

    Mechanical Engineering · mapped topic

  • Operations & Transport · mapped topic

  • Mechanical Engineering · mapped topic

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Frequently asked questions

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What does patent US8997952B2 cover?
A motor-vehicle shock absorber has a tube at least partially filled with damping liquid and extending, a piston rod axially shiftable inside the damper tube, and a piston connected to the piston rod and subdividing the damper tube into a piston rod-side working chamber and an opposite working chamber. An on-off control valve is axially movable inside the piston between a closed and an open posi…
Who is the assignee on this patent?
Göetz Ole, Hamers Wolfgang, Schmidt Klaus, and 3 more
What technology area does this patent fall under?
Primary CPC classification F16F9/464. Mapped technology areas include Mechanical Engineering.
When was this patent published?
Publication date Tue Apr 07 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).