Injection valve, especially for a mould for an optical lens

Details Injection valve, especially for a mould for an optical lens Injection valve, especially for a mould for an optical lens

2005-11-29

2005-11-29

Heckenberg, Donald (Department: 1722)

Plastic article or earthenware shaping or treating: apparatus

Female mold and charger to supply fluent stock under...

With means between charger and mold to cut off flow of...

C425S568000, C425S808000, C251S319000, C251S366000

Reexamination Certificate

active

06969248

ABSTRACT:
An injection valve includes an injection channel (17) that opens outwards via an outlet (18) and has a specific inlet for the arrival of the molding material (19A) remote from the outlet (18), in addition to a slider unit (20) that is moveably mounted in the injection channel (17) and controls the outlet thereof (18). The injection channel (17) has a specific outlet (19B) for discharging the molding material. The invention can be used to mold an optical lens made from a polymerizable synthetic material.

REFERENCES:
patent: 3985300 (1976-10-01), Pinney
patent: 4340203 (1982-07-01), Donner
patent: 5221509 (1993-06-01), Fujimoto et al.
patent: 5378138 (1995-01-01), Onuma et al.
patent: 5470219 (1995-11-01), Yokoyama et al.
patent: 6234783 (2001-05-01), Shibata et al.
patent: 2 624 050 (1989-06-01), None
English abstract for FR 2 624 050.

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