Title: Container safety closure

Abstract: A container safety closure including a spring element in the form of a generally convoluted tubular plastic element preset to a stable condition, where its further compression response is determined by special tapering of the wall thickness and radii of the convolutions. The spring element biases a container closure member against a detent arrangement and the spring must be compressed to permit the closure member to be removed from the container.

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Inventors: Bialobrzeski, Walter (Wallingford, CT, US)

Application Number: 902240
Filing Date: 1978-05-02
Publication_date: 1979-05-08
Assignee:
Primary Class(es): 215/209 215/222, 220/666, 220/720
Other Classes:
US Patent Ref:

3623623	Nov, 1971	Bauer	215/222.
3968871	Jul, 1976	Briscoe	215/221.
3974928	Aug, 1976	Domaracki et al.	215/222.

Other Refs:
Primary Examiner: Hall, George T.
Assistant Examiner:
Attorney: DeLio and Montgomery