Method of molding a pipe end protector

Details Method of molding a pipe end protector Method of molding a pipe end protector

1989-03-13

1990-09-18

Lowe, James

Plastic and nonmetallic article shaping or treating: processes

With printing or coating of workpiece

Coating or impregnating workpiece before molding or shaping...

264263, 264265, 264275, B29C 3910

Patent

active

049576780

ABSTRACT:
A pneumatic type pipe-end protector pressurizable for clamping onto a pipe-end is manufactured by centering a containment ring supported by a filling duct in a casting mold, covering the filling inlet with a pneumatically expandable element attached to the ring maintaining the outer end of the filling duct in communication with the ambient atmosphere, and then introducing plastic into the casting mold for forming the protector body.

REFERENCES:
patent: 1355254 (1920-10-01), Parsons
patent: 2732864 (1956-01-01), Stansbury
patent: 3825647 (1974-07-01), Kirsch
patent: 3858613 (1975-01-01), Musslewhite

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