Apparatus for forming protuberances on a line

Details Apparatus for forming protuberances on a line Apparatus for forming protuberances on a line

1981-01-09

1982-12-14

Pavelko, Thomas P.

Plastic article or earthenware shaping or treating: apparatus

Sets of press couples comprising registering female mold...

Mounted on rolls

425384, 425392, 264284, B29D 3100, B29C 2500

Patent

active

043636136

ABSTRACT:
Two roller elements are spatially related so that grooves therein are aligned to define an opening between the roller elements. The grooves have pluralities of cavities formed therein into which material from a line is squeezed as the line is passed through the opening so that protuberances are formed on the line. A heating element is provided to soften the line prior to having the protuberances formed, and a cooling chamber is provided to cool the line after the protuberances have been formed.

REFERENCES:
patent: 3121913 (1964-02-01), Hagmann
patent: 3825393 (1974-07-01), Bittner

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