Apparatus for exercising a live hinge

Details Apparatus for exercising a live hinge Apparatus for exercising a live hinge

2005-01-11

2008-09-23

Yao, Sam Chuan (Department: 4111)

Plastic article or earthenware shaping or treating: apparatus

Preform assembly means and means for bonding of plural...

Means press fitting or forcibly embedding one preform into...

C425S441000, C425S317000, C425S577000

Reexamination Certificate

active

07427196

ABSTRACT:
The present invention provides a device for exercising a live hinge formed integrally between a vessel portion and a lid of an article during injection molding. In an embodiment, the device includes a core block for forming the vessel portion and a movable side core for forming the lid. The side core has a molding position for forming the article, and an ejection position for ejecting the article from the core block. The device also includes an exercising member that is movable with the side core. The exercising member closes the lid and exercises the hinge during travel from the molding position to the ejection position.

REFERENCES:
patent: 4340352 (1982-07-01), Hayberg
patent: 4351630 (1982-09-01), Hayberg et al.
patent: 4818208 (1989-04-01), Byrne
patent: 4897032 (1990-01-01), Corteggiani
patent: 5744082 (1998-04-01), Bak
patent: 6820721 (2004-12-01), Martin
patent: 2004/0052891 (2004-03-01), Kalemba
patent: 1512513 (2005-09-01), None
patent: 56020689 (1982-08-01), None
patent: WO 02/28622 (2002-04-01), None
International Search Report for PCT/CA2005/001835, dated Feb. 23, 2006, three pages, related to the above-identified US patent application.

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