Brakes – Internal-resistance motion retarder – Position of thrust member relative to chamber
Patent
1991-12-23
1993-06-15
Halvosa, George E. A.
Brakes
Internal-resistance motion retarder
Position of thrust member relative to chamber
18832214, 18832215, F16F 948, F16F 949
Patent
active
052194140
ABSTRACT:
A shock absorber has a spring disc to close one end of a fluid path defined through a piston for generating damping force in response to piston stroke in one of bounding and rebounding direction. A coil spring is also provided for providing additional spring force for flow restriction and thus increasing damping force to be generated in response to the piston stroke in one of the bounding and rebounding directions. The coil spring is so oriented to become active in response to a piston stroke in a magnitude greater than a predetermined value and greater than a piston stroke criteria which defines neutral range of the piston stroke.
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patent: 4821852 (1989-04-01), Yokoya
patent: 4830152 (1989-05-01), Rauert et al.
patent: 4905799 (1990-03-01), Yamaoka et al.
Atsugi Unisia Corporation
Halvosa George E. A.
Kananen Ronald P.
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