Self-attaching hinge for polystyrene containers and latch means

Details Self-attaching hinge for polystyrene containers and latch means Self-attaching hinge for polystyrene containers and latch means

1978-05-12

1979-05-15

Hall, George T.

Receptacles

Closures

Having means for securing or retaining closure in its closed...

16128R, 16171, 16150, 16159, B65D 4314, B65D 5104

Patent

active

041543629

ABSTRACT:
Polypropylene hinges include hinge mounts for self-attaching them to the box and cover of a polystyrene container. The hinge mounts depend from hinge plates and are characterized by an outwardly protruding rigidly supported flange. The hinge mounts are generally matingly received in openings in the box and cover, and the flanges deform the openings to create notches receiving the flanges in an interengaging fit. Hinges also releasably detain the box and cover in a closed position by means of locking legs upstanding from one hinge plate and releasably capturing the other hinge plate to hold the hinge plates in a closed position. In a preferred embodiment, two locking legs having capture tabs receive the other hinge plate therebetween, the capture tabs capturing the other hinge plate to hold the hinge in its closed position.

REFERENCES:
patent: 3592354 (1971-07-01), Nielsen
patent: 3805327 (1974-04-01), Walker
patent: 4089467 (1978-05-01), McKenney

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