US PATENT SUBCLASS 267 / 208
.~.~.~.~ Including relatively rotating friction surfaces (e.g., drum type)

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}
208.~.~.~.~ Including relatively rotating friction surfaces (e.g., drum type)

DEFINITION

Classification: 267/208

Including relatively rotating friction surfaces (e.g., drum type):

(under subclass 205) Spring device wherein one of the rubbing surfaces is caused to revolve or swing in contact with the other surface.

SEE OR SEARCH CLASS

213, Railway Draft Appliances,

28, for similar devices peculiar to railway use.