US PATENT SUBCLASS 152 / 29
.~.~ With plural spring types

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}
29.~.~ With plural spring types {6}
30  DF  .~.~.~> Rubber and pneumatic
31  DF  .~.~.~> Rubber and leaf
32  DF  .~.~.~> Rubber and coil {1}
34  DF  .~.~.~> Pneumatic and leaf
35  DF  .~.~.~> Pneumatic and coil {1}
37  DF  .~.~.~> Leaf and coil {2}

DEFINITION

Classification: 152/29

The spring encircling rigid annulus in the spring wheel is resiliently supported against radial motion relative to the wheel center by combined springs of different types, for example, rubber, leaf and coil.