US PATENT SUBCLASS 152 / 52-- .~.~.~.~ With drive

US PATENT SUBCLASS 152 / 52
.~.~.~.~ With drive

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}
40	DF	.~.~ Rubber spring {4}
47	DF	.~.~.~ Annular {4}
52		.~.~.~.~ With drive

DEFINITION

Classification: 152/52

In a spring wheel having a spring encircling rigid annulus supported by an annular rubber spring, said rigid annulus is held against rotation relative to the wheel center, either by modification of wheel or spring elements or by additional means. This subclass includes drive through the spring.

SEE OR SEARCH THIS CLASS, SUBCLASS:

40, through 42 and 47, for devices wherein the drive is by means of friction, cement or vulcanization, and involves no modification of wheel or spring elements.