F - Mech Eng,Light,Heat,Weapons – 16 – L
Patent
F - Mech Eng,Light,Heat,Weapons
16
L
189/41
F16L 11/11 (2006.01) F16L 27/11 (2006.01)
Patent
CA 1207678
ADJUSTABLE TUBULAR WALL STRUCTURE FOR CONNECTORS AND THE LIKE Abstract of the Disclosure An adjustable tubular wall structure for tubular connectors, conduiting, containers, and the like, in which the wall structure comprises a tubular body of pleated asymmetrical accordian fold configuration formed from a semi-rigid resiliently flexible material of substantially uniform gauge, in film thickness dimension proportions, that has a central axis extending centrally and longitudinally of same, of which each pleat is defined by a thrust cone wall segment and a Belleville washer wall segment, in which the smaller or narrower ends of the two wall segments are integrally connected to form an annular articulation therebetween and thereabout, and the larger or wider ends of the individual Belleville washer wall segments of each pleat are integrally connected to the larger or wider ends of the thrust cones of the next succeeding pleat, to form an annular articulation therebetween and there- about, with said articulations respectively forming the roots and crowns of the pleating. The Belleville washer wall segments of each pleat are proportioned to be snap shifted through the articulation of same to the thrust cone of the next adjacent pleat, for shortening or lengthening the tubular body or widening or contracting it, with such articulation including an integral O-ring like protuberance thereabout that controls the axially directed thrust needed for that purpose. Similar partial snap shifting of the individual Belleville washer wall segments may be effected, for angulating the tubular body, by canting the thrust cone wall segment of a selected pleat sidewise, by way of flecture of the Belleville washer wall segment that is articulated to same in the pleat, to shift a section of same through the articulation between such Belleville washer wall segment and the thrust cone segment of the next adjacent pleat. In all these relations, namely, extended, shortened and contracted, angled, or any partial positioning of such in same, the tubular body is stable in its adjusted position, both at its ends and lengthwise of same.
435893
Beatrice Foods Co.
Macrae & Co.
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