Amerityre Corporation

James G Moore

Richard A Steinke

Theodore M Love

Gary N Benninger

Manual Chacon

A process and method for retreading a heavy duty tire with a polyurethane tread where, after a tire carcass is inspected, cleaned and the worn tire tread is removed, the tire carcass receives a tube fitted therein and is installed in a mold cavity, between top and bottom mold rings. The mold rings each include spaced segments that inter-digitate and will form equal spaced tread voids in a finished recapped tire. The bottom mold ring inner edge top includes a continuous sealing lug, and the top ring is open to pass a flow of polyurethane materials, that is received off of a lower edge of a cone shaped spreader positioned onto the tire carcass top side wall and slides, as a sheet, into the mold, filling the mold cavity from bottom to top, forcing air from the mold ahead of the fill and forming the recapped tire tread.

Method for retreading a heavy duty tire with a polyurethane tread

An apparatus for retreading a heavy duty tire with a polyurethane tread where a tire carcass that is suitable for retreading receives a tube fitted therein and is installed on its side in a mold cavity, between top and bottom rings, that each include spaced segments extending from opposing top and bottom ring surface that inter-digitate to form the equal spaced tread voids in a finished recapped tire, with bottom ring inner edge including a continuous sealing lug, and the top ring is open to pass a flow of polyurethane materials from a lower edge of a cone shaped spreader that is positioned onto the tire carcass top side wall and directs a flow of polyurethane materials from the cone surface into the mold, filling the mold cavity from bottom to top to form a recapped tire tread.

Apparatus for forming a heavy duty tire with a polyurethane tread

A vacuum forming process for manufacturing a transport tire from an elastomeric material that include steps of: in a mold having a cavity or annular area, positioning a transport tire core of plies, belt and beads that has been laid-up on a mandrel. Fitting a cover in sealing engagement over the mold top and fitting a cylindrical canister, that is open at a top end, through the center of the cover and into the mold center and pouring an elastomeric material mixture into the canister that includes a needle valve in its lower end that exhausts into one end of the mold annular area. The cylindrical canister includes a port for connection to a deep vacuum source and the cover includes a port that is for connection to a low level vacuum source, where the deep vacuum is to remove air from the elastomeric material mixture, and, after filling, is open to atmosphere, and the needle valve is opened to the mold annular chamber allowing the mixture to be pulled by the low level vacuum through the mold annular cavity, impregnating the transport tire core maintained therein.

Method for vacuum forming an elastomeric tire

An apparatus and method for filling a tire and wheel assembly cavity, that can be a large tire and wheel, with a flexible closed cell polyurethane foam that is passed as a mixture of reacting constituents through a fill hose whose end is fitted between the tire bead and wheel rim, and after filling and removal of the fill hose end, providing for lifting and maintaining the tire bead in engagement with the wheel rim as the reacting materials complete their reaction, uniformly filling the tire and wheel cavity with the flexible closed cell polyurethane foam that has expanded and urges the tire bead into sealing engagement with the wheel rim.

Method and apparatus for filling a tire and wheel assembly with a closed cell polyurethane foam

A vacuum forming apparatus and process for its use in forming a transport tire from an elastomeric material that includes a mold having a cavity or annular area wherein a transport tire core of plies, belt and beads is laid-up on a mandrel located within the mold. The mold receives a cover fitted in sealing engagement over the mold top and a cylindrical canister is fitted through the center of which cover and the mold center that is open at a top end to receive a pour of an elastomeric material mixture and includes a needle valve in its lower end that exhausts into one end of the mold annular area. The cylindrical canister includes a port for connection to a deep vacuum source and the cover includes a port that is for connection to a low level vacuum source, with the deep vacuum to remove air from the elastomeric material mixture as it is poured into the canister, and with, after filling, the port is open to atmosphere and the needle valve is opened to exhaust the mixture into the mold annular chamber wherethrough it is pulled by the low level vacuum through the cover port, filling the mold annular cavity and thoroughly impregnating the core maintained therein.

Apparatus for vacuum forming an elastomeric tire

A tire insert system for assembly into a continuous ring during its positioning within a tire, and is supported on a wheel web between the wheel flanges where the continuous tire insert ring is mounted to the wheel to support a tire load for a significant travel distance should that tire lose air. The four tire insert segments each include an arcuate shaped outer portion that, when assembled end to end, form the insert ring, and each tire insert segment includes an anchor plate that is an arcuate section when assembled side by side with other anchor plates forms a flat disk having an open center portion, which anchor plate is secured to the tire insert on its top end and includes mounting holes formed in its lower portion for receiving bolt type fasteners fitted therethrough and through forward and rear wheel sections, sandwiching the anchor plates therebetween, forming the tire insert ring in the tire during a mounting of the tire between wheel flanges.

Run flat tire insert system

A urethane wheel that is manufactured by molding, casting, or vacuum forming methods in a mold having a wheel shaped cavity that a wheel core formed from a rigid material such as steel or aluminum has been supported in to receive a flow of a urethane material directed therearound, encapsulating the entire wheel core and forming a wheel capable of supporting a car or light truck traveling at highway speeds.

Urethane wheel having a metal core

A system for manufacturing an elastomeric tire utilizing a separate formation of a package having a tire core shape and containing tire belts, plies and beads. The package is formed by a laying up of layers of pre-cure elastomer intradigitated with sections of porous fabric, where the fabric fibers are placed at desired crossing angles to one another, and the pre-cure elastomer layers are positioned therebetween as a sandwich, with the sandwich then cold rolled into the tire core shape. Inelastic hoop shaped beads are fitted to and encapsulated in the tire core side walls ends and, as required, an inelastic belt is fitted around the tire core tread area that is secured thereto as by cold rolling a layer of pre-cure elastomer thereover, completing the tire core package. The tire core package is fitted into a mold, preferably a spin casting mold, and is supported therein equidistant from the mold cavity walls to receive an elastomer sprayed therein as the mold is spun. During spinning, the exothermic heat of reaction of the sprayed elastomer constituents as is generated as they are mixed and sprayed into the mold, completes the cure of the pre-cure elastomer, providing a homogenous finished tire with the belts, plies and beads optimally positioned therein.

Growing community of inventors

Boulder City, NV, United States of America

James G Moore