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US 12,280,621 B2Granted
Hollow tire and method of making same
AssigneeSuperior Tire & Rubber Corporation
InventorsKyle Robert Knotowicz, Joseph J. Peterson
Life of this patent
Estimating the term…
Abstract
A tire comprising a continuous channel defined by spaced apart sidewalls coupled at a first end to a bridging member and at a second end to a contact member that is coupled to a disc contact portion, said tire being formed by rotational molding of a polyurethane and configured for mounting on a wheel rim.
Claims10
A seeder tire comprising:
- a first sidewall spaced apart from a second sidewall, whereby the first sidewall has a base portion and an opposing end and an L-shaped cross section between the base portion of the first sidewall and the opposing end of the first sidewall, and the second sidewall has a base portion and an opposing end and an L-shaped cross section between the base portion of the second sidewall and the opposing end of the second sidewall;
- a contact member extending from the opposing end of the first sidewall to the opposing end of the second sidewall;
- a bridging member extending from the base portion of the first sidewall to the base portion of the second sidewall;
- a central axis;
- and a sidewall structure extending outwardly away from the contact member and the second sidewall to a disc contact portion of the sidewall structure;
- whereby the sidewalls, contact member and bridging member define a hollow channel;
- whereby the L-shaped cross section of the second sidewall comprises a leg that continuously increases in cross-sectional thickness as it extends laterally away from the central axis;
- and
- whereby the seeder tire has a homogeneous single-piece construction made of one or more polyurethane compounds.
6 more elements
A seeder tire comprising:
- a first sidewall, a second sidewall, a contact member, a bridging member, a central axis;
- and a sidewall structure
- whereby the first sidewall is spaced apart from the second sidewall, the first sidewall has a base end and an opposing end and an L-shaped cross section between the base end of the first sidewall and the opposing end of the first sidewall, and the second sidewall has a base end and an opposing end and an L-shaped cross section between the base end of the second sidewall and the opposing end of the second sidewall;
- whereby a contact member connects the opposing end of the first sidewall to the opposing end of the second sidewall;
- whereby the bridging member connects the base portion of the first sidewall to the base portion of the second sidewall;
- whereby a sidewall structure extends from the contact member and the second sidewall, the sidewall structure having a disc contact portion;
- whereby the sidewalls, contact member and bridging member define a hollow channel;
- whereby the L-shaped cross section of the second sidewall comprises a leg that continuously increases in cross-sectional thickness as it extends laterally away from the central axis;
- and
- whereby the seeder tire has a homogeneous single-piece construction made of one or more polyurethane compounds.
7 more elements
Dependencies are inferred from the claim text.