System for mounting a forming element on a mandrel

Details System for mounting a forming element on a mandrel System for mounting a forming element on a mandrel

1980-09-15

1982-06-22

Flint, Jr., J. Howard

Plastic article or earthenware shaping or treating: apparatus

Preform reshaping or resizing means: or vulcanizing means...

Including product handling means

425393, 425DIG58, 425DIG44, 425DIG218, 29450, 29453, B29C 1702

Patent

active

043360149

ABSTRACT:
The mandrel uses a single anchoring groove in order to fixedly mount the forming and sealing element thereon for subsequent passage of a heated thermoplastic pipe end thereover. The forward wall of the anchoring groove may be directed radially outwardly or may be inclined rearwardly in order to abut the sealing portion of the element. The sealing portion fills the anchoring groove while the trailing wedge-shaped end fits into a small recess to avoid "fish-mouthing."

REFERENCES:
patent: 3377659 (1968-04-01), Hucks
patent: 3998578 (1976-12-01), Acda
patent: 4030872 (1977-06-01), Parmann
patent: 4061459 (1977-12-01), Parmann

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