Retreaded tires and method for making the same without spray cement
AssigneeBandag Licensing Corporation
InventorsDavid L. Bender, James E. Bundschuh JR., Lawrence Carlson, Johnathon Leslie Logsden, Floyd S. Myers, Gary W. Schnedler, Ronald Seiler
Life of this patent
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Abstract
A retreaded tire assembly and method for making the same is disclosed. The method and assembly provide for the application of new tread to a buffed tire casing with only a layer of cushion gum disposed therebetween. The cushion gum is applied directly to the buffed circumference of a tire casing without the use of conventional spray cement normally applied to the buffed surface of the entire casing.
Claims20
A method for retreading a tire, comprising the steps of:
- removing tire tread from a tire casing to present a buffed surface;
- applying a layer of cushion gum directly to the buffed surface;
- wrapping a tread layer about the layer of cushion gum;
- and
- treating the tire to form bonds between the casing and the layer of cushion gum and between the tread layer and the layer of cushion gum.
A method for retreading a tire, comprising the steps of:
- removing old tire tread from a tire casing to present a buffed surface;
- cutting a tread layer to a length sufficient to encircle the buffed surface along the circumference of the casing;
- maintaining the buffed surface free of tire retreading cement;
- disposing a layer of cushion gum between the buffed surface and the tread layer;
- squeezing the layer-of cushion gum between the buffed surface and the tread layer;
- and
- heating the combined tire casing, tread layer and layer of cushion gum to form a vulcanized bond therebetween.
A retreaded tire assembly prepared for insertion into a pressurized heating chamber comprising:
- a tire casing having a pair of sidewalls and a radially outer wall spanning the pair of sidewalls, the radially outer wall having a buffed surface disposed about the outer circumference of the tire casing;
- a layer of cushion gum disposed directly against the buffed surface;
- and
- a tread layer disposed against the cushion gum.
Dependencies are inferred from the claim text.