Heating device for a tire retreading mold

Details Heating device for a tire retreading mold Heating device for a tire retreading mold

1979-01-18

1980-02-26

Flint, Jr., J. Howard

Plastic article or earthenware shaping or treating: apparatus

Product or preform repair or restoring means

Tire recapping, rebeading or sidewall replacing means

425 41, 249 78, B29H 504

Patent

active

041904052

ABSTRACT:
This disclosure is directed to a heating device particularly adapted for tire treading and/or retreading matrices and includes a body having a continuously unending channel formed in an exterior peripheral surface of the matrix body in which is disposed an electric or steam heating element having opposite end portions in lapping relationship with the heating element being generally encased in a body of cast metallic material, and means in the form of a generally Z-shaped spacer traversing the channel and separating the solid material encasing the end portions on each other to permit the heating element to expand and/or contract.

REFERENCES:
patent: 2570657 (1951-10-01), Fannen
patent: 2801443 (1957-08-01), Duerksen
patent: 2970346 (1961-02-01), Fannen
patent: 3088171 (1963-05-01), MacMillan
patent: 3170193 (1965-02-01), Fike
patent: 3339241 (1967-09-01), Fike
patent: 3778203 (1973-12-01), MacMillan

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