Frequency dependent damper

Brakes – Internal-resistance motion retarder – Having a thrust member with a variable volume chamber

Reexamination Certificate

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Details

C188S282800, C188S283000, C188S317000

Reexamination Certificate

active

07070028

ABSTRACT:
A gas shock absorber has a pressure tube which defines a working chamber. A piston divides the working chamber into an upper working chamber and a lower working chamber. A flow path extends through the piston to provide fluid communication between the upper and lower working chambers. A valve body is attached to the pressure tube. The valve body defines a flow path between the working chamber and a fluid chamber. The fluid chamber is in communication with either the upper working chamber or the lower working chamber. The fluid chamber can be defined within the pressure tube, between the pressure tube and a chamber tube or it can be defined by an air spring assembly.

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