US PATENT SUBCLASS 267 / 204
.~.~.~ Friction surface on helical spring

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}
204.~.~.~ Friction surface on helical spring

DEFINITION

Classification: 267/204

Friction surface on helical spring:

(under subclass 196) Spring device wherein one of the surfaces which rub against each other is located on a helical coil-spring*.