Closure unit for molding tools

Details Closure unit for molding tools Closure unit for molding tools

1986-10-14

1987-09-15

Hoag, Willard E.

Static molds

Container-type molding device

Having plural mold sections

100214, 425589, 425595, 425406, 4254512, 4254519, B29C 4567, B29C 3324

Patent

active

046934480

ABSTRACT:
Closure units for molding tools, in particular those for the production of polyurethane moldings comprising long lifting cylinders arranged between an upper cross head and a movable cross head for lowering and raising the upper half of a molding tool, the movable cross head being mounted on columns connecting the fixed cross head to a base by means of short lifting cylinders having arrestable drag pistons arranged therein, were found to offer advantages in terms of economy of design and operation.

REFERENCES:
patent: 3663027 (1972-05-01), Klipping
patent: 4080889 (1978-03-01), Shiloni

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