Adjustable tubular wall structure for connectors and the like

Pipe joints or couplings – Flexible joint – rigid members – Bellows

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Details

138121, 285423, F16L 2700

Patent

active

049271911

ABSTRACT:
An adjustable tubular wall structure, which may be cylindrical or tapered, comprises a tubular body of asymmetrical accordion-folded pleats. Each pleat is defined by a thrust cone wall segment and a Belleville washer-like wall segment. The Belleville washer-like wall segments of each pleat are proportioned to be snap shifted through the articulation of the thrust cone of the next adjacent pleat, and thus shorten or lengthen the tubular body. Similar partial snap shifting of the individual Belleville washer-like wall segments provides for angulating the tubular body. The tubular structure is stable in its adjusted position, both at its ends and lengthwise of same. Tapered tubular structures may be integrally molded into a container to serve as a collapsible pouring spout.

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