Bead seal ring unit

Details Bead seal ring unit Bead seal ring unit

B - Operations, Transporting

29

D

18/176

B29D 30/54 (2006.01)

Patent

CA 1294098

ABSTRACT This invention is directed to the retreading of radial tires by use of a bead sealing ring unit that pro- vides positive mechanical pressure for sealing the curing envelope between the bead sealing ring unit and the bead area of the tire by a radial force. In its relaxed or initial condition, the bead sealing ring unit has a dia- meter smaller than the bead diameter of the tire. The bead sealing ring unit is placed into sealing position and then expanded by a locking device secured to a metal band which is part of the bead sealing ring unit.

522315

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