Back to results
US 9,440,487 B2Granted
Cardboard made wheel
AssigneeI.G. Cardboard Technologies Ltd.
InventorIzhar Gafni
Life of this patent
Estimating the term…
Abstract
Some embodiments are directed to a generally planar wheel, including a multi-layer cardboard body having at least one layer of a high-density cardboard sheet sandwiched between at least two layers of low-density cardboard sheet.
Claims16
A wheel, comprising:
- a generally planar, multi-layer cardboard body having two side faces, a circular circumference and a hub that defines a central axis, the layers being arranged in parallel to the two side faces;
- the layers comprising at least one layer of a high-density cardboard sheet sandwiched between at least two layers of low-density cardboard sheet, each of said low-density cardboard sheet comprising two liner cardboard layers fitted on opposite sides of a low-density cardboard layer;
- the at least two layers of low-density cardboard sheet and the at least one layer of high-density cardboard sheet being fixedly attached to one another.
Dependencies are inferred from the claim text.