Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
B60B15/00—Wheels or wheel attachments designed for increasing traction
B60B15/02—Wheels with spade lugs
B60B15/10—Wheels with spade lugs with radially-adjustable spade lugs; Control mechanisms therefor
B60B15/16—Wheels with spade lugs with radially-adjustable spade lugs; Control mechanisms therefor involving gearing, e.g. gear pinions acting upon threaded shafts on the spade lugs