Grooved envelope for recapping or retreading tires

Details Grooved envelope for recapping or retreading tires Grooved envelope for recapping or retreading tires

1992-01-24

1994-01-25

Hart, Charles

Plastic article or earthenware shaping or treating: apparatus

Reshaping, resizing or vulcanizing means for tire, tire...

Means shaping drum shaped preform to tire casing shape

1563941, 156909, 425 48, B29C 3500

Patent

active

052811182

ABSTRACT:
A vulcanized rubber device to envelop a tire being recapped or retreaded, when place in an autoclave to vulcanize the rubber strip cemented between the new tread and the treated tire. This device, has an annular form, with a "U" section, whose lateral surfaces (5), are provided with a hole (2) and (4), and surrounding a circular opening (3), but has a new feature; a ring with grooves (1), on the inside of each internal lateral surface (4) and (5), forming radiating furrows.

REFERENCES:
patent: 4500375 (1985-02-01), Goldstein
patent: 4808256 (1989-02-01), Hill
patent: 4878822 (1989-11-01), Wetch

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