Adjustment of zero spring rate suspensions

Details Adjustment of zero spring rate suspensions Adjustment of zero spring rate suspensions

1989-10-30

1991-06-18

Talbott, David L.

Measuring and testing

Simulated environment

248550, 248610, 267150, F16M 1300

Patent

active

050241117

ABSTRACT:
An adjustment system for a suspension system having the property of providing a zero spring rate response to limited vertical excursions from a reference level, the suspension system including a load suspension spring supported from a load spring anchor. The adjustment system includes a rigid reference element below the suspension spring, bi-directional drive means between the load spring and the load spring anchor, and a probe insertable into an aperture in the reference element. Circuit means are responsive to the location of the probe relative to the reference element, to adjust the elevation of the load spring relative to the reference level and thereby to tend to restore the reference element to the reference level.

REFERENCES:
patent: 2335834 (1943-11-01), Wood
patent: 2372214 (1945-03-01), Loepsinger
patent: 2945656 (1960-07-01), Sherburne
patent: 4023756 (1977-05-01), Baker
patent: 4344596 (1982-08-01), Hjaeresen
patent: 4682752 (1987-07-01), Pischzik
patent: 4860600 (1989-08-01), Schumacher

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