Retread ring

Details Retread ring Retread ring

1990-06-01

1992-02-18

Knable, Geoffrey L.

Adhesive bonding and miscellaneous chemical manufacture

Surface bonding means and/or assembly means therefor

Tire body building type

156 96, 156909, 425 17, 425 58, B29D 3054

Patent

active

050890794

ABSTRACT:
A retread curing ring assembly that includes a conical frustum seat insertable within an opening of a tire carcass to be cured. The retread curing ring captures the edge portions of an elastomeric envelope draped over the tire carcass and a tread strip between the conical seat and the inner edge of the circumferential bead formed along the interior edge of the sidewalls of the tire carcass. A plurality of clamping assemblies are circumferentially disposed around a circular body member to which the conical seat is attached. Each clamping assembly has a clamping arm movable between an open and closed position. When the curing ring is positioned within the tire carcass, the clamping arms are moved to their closed positions, thereby drawing the curing ring further within the tire carcass to form a seal between the inner edge of the circumferential bead and the conical seat.

REFERENCES:
patent: 4579619 (1986-04-01), Symmes et al.
patent: 4600467 (1986-07-01), Perdue
patent: 4850834 (1989-07-01), Hinson et al.
patent: 4966640 (1990-10-01), Hill

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