Tire chain for dual wheel tires
AssigneeBurns Bros., Inc.
InventorsLarry C. Clark, David S. Jardin
Life of this patent
Estimating the term…
Abstract
A cable-type tire chain for the tires of dual wheels comprises a pair of side members and a plurality of cross members extending between and connected to the side members and supporting traction elements. The tire chain includes a center member that extends circumferentially over the cross members of the installed tire chain and that draws center portions of the cross members into the space between the tires. The center member comprises a core surrounded by a helical spring. The core includes a cable wrapped helically with wire, and the inner diameter of the spring is greater than the outer diameter of the core so that the spring can move on the core.
Claims23
A tire chain for dual tires, comprising a pair of spaced elongated side members, a plurality of cross members extending between and connected to said side members, connector parts at the ends of said side members for installing the tire chain with one of said side members extending circumferentially of one of said tires at one side thereof and with the other of said side members extending circumferentially of the other of said tires at an opposite side thereof and with said cross members extending across treads of said tires, and a flexible, dimensionally stable center member having cooperable connector parts at opposite ends thereof for installing the center member circumferentially in a space between said tires with the center member extending over said cross members and drawing center portions of said cross members into said space between said tires, wherein the center member comprises a core and a helical spring surrounding the core.
A center member of a tire chain for dual tires, comprising an elongated core surrounded by an elongated helical spring, the core having connector parts at opposite ends thereof engageable with one another for installing the center member circumferentially in a space between dual tires.
Dependencies are inferred from the claim text.