Apparatus for making a flexible link belt

Details Apparatus for making a flexible link belt Apparatus for making a flexible link belt

1986-11-04

1987-11-10

Hoag, Willard E.

Plastic article or earthenware shaping or treating: apparatus

Distinct means to feed, support or manipulate preform stock...

Female mold type means

249 83, 249122, 264167, 264250, 264257, 264273, 264275, 425122, 425127, 425129R, 425556, 425577, 425408, 425444, B29C 4514, B29C 4540

Patent

active

047054697

ABSTRACT:
A flexible link belt is made by injection molding link portions into and through a flexible carrier webbing, whereby the link portions are also bonded to each other through holes in the webbing. The injection mold used for making the links has two mold sections each with a cavity portion corresponding to the respective link portion. The carrier webbing is held in place between the two mold sections. An injection nozzle reaches into one mold portion and a movable core reaches into the other mold portion preferably in such a position that the injection nozzle and the movable core face each other across the flexible webbing. The core distributes the injected plastics material into both mold portions and so that the plastics material must move primarily through the holes or interstices in the webbing.

REFERENCES:
patent: 2415961 (1947-02-01), Nast
patent: 2575813 (1951-11-01), Hutchins
patent: 2602188 (1952-07-01), Gorecki
patent: 3441641 (1969-04-01), Roberts
patent: 3482004 (1969-12-01), Anderson
patent: 3813197 (1974-05-01), Ray et al.
patent: 4456576 (1984-06-01), Cotte

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