On/off damper for bikes

Details On/off damper for bikes On/off damper for bikes

2005-09-13

2005-09-13

Schwartz, Christopher P. (Department: 3683)

Brakes

Internal-resistance motion retarder

With means for locking parts together temporarily

C267S120000, C280S276000, C188S322190

Reexamination Certificate

active

06942073

ABSTRACT:
An activation device for a damper includes a stopping tube adapted to be securely received in the piston rod and having grooves defined in a peripheral edge of the stopping tube and first teeth formed on the peripheral edge of the stopping tube, a driving tube adapted to be movably received in the piston rod and in the stopping tube and having second teeth formed on a peripheral edge of the driving tube and a rotating tube adapted to be movably received in the piston rod and having third teeth engaged with the second teeth so that the movement of the driving tube is able to drive the rotating tube to rotate an angle to selectively allow a corresponding one of the third teeth to be received in the grooves such that communication between the axial passage and the space is selectively plugged.

REFERENCES:
patent: 3843107 (1974-10-01), Atkins
patent: 4620620 (1986-11-01), Johnston et al.
patent: 5449189 (1995-09-01), Chen
patent: 6102354 (2000-08-01), Thorn
patent: 6308940 (2001-10-01), Anderson
patent: 6592136 (2003-07-01), Becker et al.
patent: 6802407 (2004-10-01), Chen

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