US PATENT SUBCLASS 267 / 214
.~.~.~ Friction surface formed on or biased by additional spring

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


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}
214.~.~.~ Friction surface formed on or biased by additional spring {1}
215  DF  .~.~.~.~> Relatively rotating friction surfaces (e.g., drum type)

DEFINITION

Classification: 267/214

Friction surface formed on or biased by additional spring:

(under subclass 196) Spring device including a second element which exhibits resilient characteristics and which tends to force the friction surface into or out of contact with each other.

(1) Note. Devices having a spring which serves to bias the vehicle parts and the friction elements are not classified here on that basis.

(2) Note. The friction surface may be on the spring itself, but see this class, subclass 204 for those devices which employ a friction surface formed on a helical spring.