US PATENT SUBCLASS 267 / 273
.~ Torsion

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

2  DF  VEHICLE {14}
273.~ Torsion {8}
274  DF  .~.~> Quadrilateral suspension
275  DF  .~.~> Helical torsion coil
276  DF  .~.~> And separate elastomeric member (e.g., bushing)
277  DF  .~.~> And adjustment for varying spring loading {1}
279  DF  .~.~> Elastomeric torsion spring {2}
283  DF  .~.~> Multilayer leaf
284  DF  .~.~> And housing enclosing spring
285  DF  .~.~> Plural torsion spring

DEFINITION

Classification: 267/273

Torsion:

(under subclass 2) Spring device wherein the spring element is subjected to a twisting force about its central axis when the vehicle parts are relatively displaced, and undergoing a resultant elastic deformation about said axis.

SEE OR SEARCH THIS CLASS, SUBCLASS:

154+, for a torsion spring or general utility.

188+, for a vehicle torque bar or tube-type stabilizer.

SEE OR SEARCH CLASS

280, Land Vehicles,

5.5+, for a general utility land vehicle including an active suspension responsive to a force encountered while the vehicle is in surface traversing motion which may or may not involve a torsion spring device or element; subclasses 6.15+ for a general utility land vehicle including means, interposed between a vehicle body, chassis, or frame and running gear thereof, for altering height or levelness of the vehicle body, chassis, or frame which may or may not involve a torsion spring device or element; subclass 79 for a general utility wheeled land vehicle provided with springs between the wheel or wheels and the load-support, noting the search notes provided therein; or subclasses 124.1+ for a general utility wheeled land vehicle running gear suspension arrangement which may or may not involve a torsion spring device or element, especially subclass 124.107 which is directed to an antiroll or antisway suspension including a sway or torsion bar, subclasses 124.116, 124.13, 124.137, 124.149, or 124.152 for a particular suspension arrangement which includes a torsion rod stabilizer, or subclasses 124.166+ for a torsion spring suspension arrangement, per se.

464, Rotary Shafts, Gudgeons, Housings, and Flexible Couplings for Rotary Shafts, 97, for a coaxial torsion bar coupling for a rotary shaft.