Bi-directional damper with a self-centering mechanism

Details Bi-directional damper with a self-centering mechanism Bi-directional damper with a self-centering mechanism

1997-03-13

1999-04-27

Graham, Matthew C.

Spring devices

Vehicle

Lever and nontorsion spring

267150, F16F 100

Patent

active

058969594

ABSTRACT:
A self centering, bi-directional, non-cavitating damper that includes a cylindrical damper body and a piston assembly having a piston reciprocally movable in the damper body and a piston rod connected and movable with the piston. A tube is connected with the piston rod and is spaced about and radially from the damper body so that the tube and damper body may move axially, relative to each other, but are normally positioned in centered positions with respect to each other. First and second plastic washers are positioned between the damper body and the tube. At least one coil compression spring is positioned between the damper body and the tube and biases the washers apart axially to their normal positions. Each washer is prevented from moving apart beyond its normal position, but is movable toward the other washer, against the bias of the spring, when relative movement, from their normal positions, occurs between the damper body and the tube.

REFERENCES:
patent: 2756071 (1956-07-01), Riva

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