Hinged box

Details Hinged box Hinged box

1970-10-27

1976-11-30

Lowrance, George E.

Receptacles

Closures

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

B65D 5104

Patent

active

039944166

ABSTRACT:
A hinged box which has two hinges protruding from the back of the box, each hinge member composed of five ball elements which are interlocked. Two balls of each group of the five elements have grooves extending across opposite faces of the ball members, at least halfway but not entirely across, which provide pockets for the three other ball members whereby the five ball members are locked securely in a rotatable position to form a hinge. Each of the two parts of the box has at the back two ball elements on one side of the box and three at the other side of the back. A further improvement in the hinged box comprises longitudinal cylindrical bar-like members protruding from the back of each section of the box and resting in grooves on the other section of the box. This construction adds strength and stiffness to the hinge without impairing the smooth action of the hinge when opening and closing the lid on the box.

REFERENCES:
patent: 2287903 (1942-06-01), Rathburn
patent: 2347981 (1944-05-01), Apfelbaum
patent: 3179281 (1965-04-01), Suoboda

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