Vibration damper having a buffer spring

Details Vibration damper having a buffer spring Vibration damper having a buffer spring

2006-06-19

2010-02-16

Schwartz, Christopher P (Department: 3657)

Spring devices

Vehicle

Mechanical spring and nonresilient retarder

C188S316000

Reexamination Certificate

active

07661663

ABSTRACT:
A vibration damper is disclosed which includes a damper tube filled with a damping medium; a piston rod which can move in an oscillating and reciprocal manner in the damper tube and one end of which protrudes into the damper tube and which comprises at this end a piston rod extension and a shoulder. A piston divides the interior of the damper tube into a working chamber remote from the piston rod and a piston rod-side working chamber and which is disposed coaxially with respect to the piston rod extension and comprises restrictor openings and at least one spring washer covering these restrictor openings in each working chamber. A buffer spring is disposed in the piston rod-sideworking chamber.

REFERENCES:
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patent: 3806105 (1974-04-01), Konishi et al.
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patent: 4796871 (1989-01-01), Bauer et al.
patent: 5044614 (1991-09-01), Rau
patent: 5667041 (1997-09-01), Jensen
patent: 7032727 (2006-04-01), Vanspauwen
patent: 7240776 (2007-07-01), Murata
patent: 2004/0060787 (2004-04-01), Nakamura et al.
patent: 196 26 143 (1998-01-01), None

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