Method and apparatus for the recovery of vulcanized elastomeric

Details Method and apparatus for the recovery of vulcanized elastomeric Method and apparatus for the recovery of vulcanized elastomeric

1976-10-15

1978-05-23

Custer, Jr., Granville Y.

Solid material comminution or disintegration

Processes

With heating or cooling of material

241 30, 241DIG31, 157 13, 260 23, 260720, B02C 2100

Patent

active

040906701

ABSTRACT:
Rubber is recovered for re-use e.g. from scrap pneumatic tires by briefly raising a surface of the tire to a high temperature and then rasping the heat-treated surface. Tires reinforced either with a textile or a steel ply can first be parted on opposite sides of the breaker structure. A machine is provided which accepts pieces of vulcanized material and progressively reduces them to heat-treated particles by repetitively heating a surface of each piece and attacking it with a rasping tool.

REFERENCES:
patent: 1963943 (1934-06-01), Gross
patent: 2494593 (1950-01-01), Suerdrup
patent: 2543315 (1951-02-01), Fabregat
patent: 2996109 (1961-08-01), MacMillan
patent: 3364526 (1968-01-01), Varady et al.
patent: 3721392 (1973-03-01), Burwell

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