US PATENT SUBCLASS 267 / 207
.~.~.~.~ Plural axially spaced expandable friction rings

Current as of: June, 1999
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267 /   HD   SPRING DEVICES

2  DF  VEHICLE {14}
195  DF  .~ Mechanical spring and nonresilient retarder (e.g., shock absorber) {2}
196  DF  .~.~ Friction (e.g., "snubber") {7}
205  DF  .~.~.~ Including cam or wedge friction element or actuator therefor {4}
207.~.~.~.~ Plural axially spaced expandable friction rings

DEFINITION

Classification: 267/207

Plural axially spaced expandable friction rings:

(under subclass 205) Spring device having a central axis along which parts or the device connected to the sprung vehicle portions are caused to move, wherein a plurality or discrete expandable annular members, each carrying a friction surface on its peripheral face, are located at different points along the axis.