US PATENT SUBCLASS 267 / 212
.~.~.~.~.~ Nested coil springs

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}
209  DF  .~.~.~.~ Including helical coil spring {3}
212.~.~.~.~.~ Nested coil springs {1}
213  DF  .~.~.~.~.~.~> Inside friction shell

DEFINITION

Classification: 267/212

Nested coil springs:

(under subclass 209) Spring device including a second helical coil-spring*, wherein a substantial part of one of the helical springs occupies the area within the other helical spring.