Brakes – Internal-resistance motion retarder – Having a thrust member with a variable volume chamber
Reexamination Certificate
2007-01-02
2007-01-02
Sterling, Amy J. (Department: 3632)
Brakes
Internal-resistance motion retarder
Having a thrust member with a variable volume chamber
C188S300000, C188S314000, C267S064120, C267S064260, C267S064260, C248S560000, C248S566000
Reexamination Certificate
active
10820402
ABSTRACT:
Vibration damper includes a cylinder filled with a damping medium in which a piston rod with a piston is guided in an axially movable manner, wherein the piston divides the cylinder into a work space on the piston rod side and a work space remote of the piston rod. A bypass connects at least one of the two work spaces with a first work chamber in a housing in which an axially movable separating piston separates the first work chamber from a second work chamber, the bypass being controlled by a switchable valve.
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Search Report for the corresponding French dated Sep. 26, 2005.
Baalmann Helmut
Pradel Robert
Cohen & Pontani, Lieberman & Pavane
ZF Sacha AG
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