US 6,578,930 B1 · Ice wheels

Abstract

The “ICE WHEELS” consists of a wheel assembly, which permits interchange with in-line skate wheels for use on ice that reduces weight and or the rolling resistance on ice while the wheel is perpendicular to the ice. The wheel consists of a lightweight hub, bearing accommodating counterbores and an outer ring containing multiple ice-engaging structures and relief grooves. The ice-engaging structures comprise of an outer circumferential contact means, inner circumferential contact means, a new medial circumferential contact means and multiple support surfaces. A new feature of this invention is the elimination of one or both of the inner circumferential contact means penetration into the ice while the wheel is perpendicular to the ice. This leaves either a flat support surface; a flat support surface with one inner circumferential contact means or two support surfaces with a medial circumferential contact means in between while the wheel is perpendicular to the ice. Reducing the number of ice embedding contact means while the wheel is perpendicular to the ice reduces the rolling resistance of said wheel. Another new feature of this invention is a relief groove that reduces the embedding of the support surface into the ice.

Claims18

Dependent claims

A wheel for use on ice comprising:

a hub and outer ring:
said hub being made of a lightweight material;
said outer ring containing ice-engaging structures;
said ice-engaging structures being made of a material that is substantially harder than ice;
said ice-engaging structures comprising of an outer circumferential contact means, inner circumferential contact means, and support surfaces;
said outer circumferential contact means and inner circumferential contact means being arranged so that at least one contact means is embedded in the ice when the wheel is perpendicular to the ice and two contact means are embedded into the ice when the wheel is at a predetermined angle from perpendicular to the ice;
said support surface is directly adjacent to the outer circumferential contact means and the inner circumferential contact means and is parallel to the ice surface when the outer circumferential contact means and inner circumferential contact means are embedded in the ice at a predetermined angle to the ice;
said support surface is between the inner circumferential contact means and is parallel to the ice surface when the wheel is perpendicular to the ice;
said support surface being of a width that is sufficient to minimize the penetration of the ice engaging structures that embed into the ice.

6 more elements

A wheel for use on ice comprising:

a hub and outer ring:
said hub being made of a lightweight material;
said outer ring containing ice-engaging structures;
said ice-engaging structures being made of a material that is substantially harder than ice;
said ice-engaging structures comprising of an outer circumferential contact means, inner circumferential contact means, support surfaces and a medial circumferential contact means;
said outer circumferential contact means, inner circumferential contact means and medial circumferential contact means being arranged so that only the medial circumferential contact means is embedded into the ice surface when the wheel is perpendicular to the ice and two contact means embedded into the ice when the wheel is at a predetermined angle from perpendicular to the ice;
said support surface is directly adjacent to the outer circumferential contact means and the inner circumferential contact means and is parallel to the ice surface when the outer circumferential contact means and inner circumferential contact means are embedded in the ice at a predetermined angle to the ice;
said support surface is adjacent to both sides of the medial circumferential contact means and is parallel to the ice surface when the wheel is perpendicular to the ice;
said support surface being of a width that is sufficient to minimize the penetration of the ice engaging structures that embed into the ice.

6 more elements

A wheel for use on ice comprising:

a hub and outer ring:
said hub being made of a lightweight material;
said outer ring containing ice-engaging structures;
said ice-engaging structures being made of a material that is substantially harder than ice;
said ice-engaging structures comprising of an outer circumferential contact means, inner circumferential contact means and support surfaces;
said outer circumferential contact means and inner circumferential contact means being arranged so that no contact means are embedded into the ice when the wheel is perpendicular to the ice and two contact means are embedded into the ice when the wheel is at a predetermined angle from perpendicular to the ice;
said support surface is directly adjacent to the outer circumferential contact means and the inner circumferential contact means and is parallel to the ice surface when the outer circumferential contact means and inner circumferential contact means are embedded in the ice at a predetermined angle to the ice;
said support surface is between the inner circumferential contact means and is parallel to the ice surface when the wheel is perpendicular to the ice;
said support surface being of a width that is sufficient to minimize the penetration of the ice engaging structures that embed into the ice.

6 more elements

Dependencies are inferred from the claim text.

Ice wheels

Life of this patent

Ice wheels

Life of this patent

Abstract

Claims18