US PATENT SUBCLASS 267 / 275
.~.~ Helical torsion coil

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

2  DF  VEHICLE {14}
273  DF  .~ Torsion {8}
275.~.~ Helical torsion coil

DEFINITION

Classification: 267/275

Helical torsion coil:

(under subclass 273) Spring device wherein the spring element is in the form of a spiral lying in the surface of a cylinder, and is subjected to a twisting force about the axis of the cylinder to cushion the relatively moving vehicle parts.