Protective structure for a retreaded air maintenance tire
AssigneeThe Goodyear Tire & Rubber Company
InventorRobert Allen Losey
Life of this patent
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Abstract
A method in accordance with the present invention retreads an air maintenance tire. The method comprises the steps of: grinding remaining tread material from a tire casing for a worn air-maintenance tire; temporarily securing a contoured piece around a structure secured to the inner surface of the tire casing; placing a tread on the tire casing; inflating a bladder within an internal cavity of the tire casing and around the contoured piece whereby the bladder does not contact the structure; securing the tread to the tire casing; deflating the bladder; separating the tire casing and tread secured to the tire casing from the bladder; and removing the contoured piece from the tire casing.
Claims14
A method for retreading an air-maintenance tire comprising the steps of:
- grinding remaining tread material from the tire casing of a worn air-maintenance tire;
- temporarily securing an aramid contoured piece around a structure secured to the inner surface of the tire casing;
- placing a tread on the tire casing;
- inflating a bladder within an internal cavity of the tire casing and around the contoured piece whereby the bladder does not contact the structure;
- securing the tread to the tire casing including the step of the bladder providing heat to the tire casing;
- deflating the bladder;
- separating the tire casing and tread secured to the tire casing from the bladder;
- and
- removing the contoured piece from the tire casing thereby forming a retreaded air-maintenance tire.
A system for retreading an air maintenance tire comprising:
- a tire casing of a worn air maintenance tire, the tire casing having remaining tread material ground off the tire casing;
- an aramid contoured piece temporarily secured around a structure secured to the inner surface of the tire casing;
- a retread element placed on the ground off tire casing;
- and
- a bladder adapted to a) be inflated within an internal cavity of the tire casing and around the contoured piece whereby the bladder does not contact the structure, b) provide heat for securing the retread element to the tire casing, and c) be subsequently deflated and separated from the tire casing thus allowing the contoured piece to be removed from the tire casing.
Dependencies are inferred from the claim text.