Receptacles – Closures – Having means for securing or retaining closure in its closed...
Patent
1982-01-21
1983-09-13
Hall, George T.
Receptacles
Closures
Having means for securing or retaining closure in its closed...
220335, 16225, 16227, 16DIG13, B65D 4314, B65D 5104
Patent
active
044037120
ABSTRACT:
An integral snap hinge of plastic material is intended to be used, e.g., for container closures or vacuum formed packages. At least two flexible joints extending in the direction of the main geometric axis are provided between these two hinge members. At least one of these flexible joints is constituted by a connecting element, which is flexibly linked to the hinge members by film hinges. The film hinges diverge so that the connecting element widens along the main geometric axis. The large or small ends of two connecting elements may face each other. The snap action is due to the fact that components of the snap hinge are resilient. The spring action may be performed by the connecting elements and/or by walls of the hinge members.
REFERENCES:
patent: 4158902 (1979-06-01), Chernack et al.
patent: 4244495 (1981-01-01), Lorscheid et al.
patent: 4261486 (1981-04-01), Bush et al.
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