US PATENT SUBCLASS 152 / 28
.~.~ Combined spring and friction

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

Internet Version by PATENTEC © 1999      Terms of Use


152 /   HD   RESILIENT TIRES AND WHEELS

1  DF  SPRING WHEELS {3}
17  DF  .~ Spring encircling rigid annulus {10}
28.~.~ Combined spring and friction

DEFINITION

Classification: 152/28

The spring encircling rigid annulus in the spring wheel is resiliently supported against radial motion relative to the wheel center by devices wherein friction between two moving elements is increased by spring pressure.

SEE OR SEARCH THIS CLASS, SUBCLASS:

81, for single end secured leaf springs wherein the free end may have some friction.