Conduit-coupling adaptor for coupling fluid conduits of disparate diameters

A conduit-coupling adaptor for mutually coupling through frictional engagement fluid conduits of disparate diameters, the adaptor having a predefined default configuration and comprising:

• a self-supporting central conduit having a central-conduit wall with interior and exterior surfaces extending longitudinally along a central-conduit axis between central-conduit first and second ends integrally joined to one another through a conduit center portion situated between the central-conduit first and second ends;
• a first-end coupling sleeve defined by the central-conduit first end and extending longitudinally away from the conduit center portion toward a first opening defined by the central-conduit first end, the first-end coupling sleeve having first-sleeve inner and outer surfaces defined by, respectively, coextensive portions of the interior and exterior surfaces of the central-conduit wall;
• a second-end coupling sleeve defined by the central-conduit second end and extending longitudinally away from the conduit center portion, in a direction opposite the extension of the first-end coupling sleeve, toward a second opening defined by the central-conduit second end, the second-end coupling sleeve having second-sleeve inner and outer surfaces defined by, respectively, coextensive portions of the interior and exterior surfaces of the central-conduit wall, the second-end coupling sleeve outer surface having a diameter that varies gradually as a function of displacement along the central conduit axis;
• and
• a self-supporting first-end skirt concentrically disposed about at least a lengthwise portion of the central-conduit first end, the skirt being (i) defined by a skirt wall having skirt-wall inside and outside surfaces that longitudinally coextend with at least a portion of the first-end coupling sleeve and (ii) joined to the central conduit by a shoulder that transitions the skirt-wall inside and outside surfaces to the exterior surface of the central conduit wall, wherein
• (a) the adaptor is fabricated from a material exhibiting a restorative memory property such that, when subjected to a distorting force, the adaptor can be flexed from the default configuration and, when the distorting force is removed, the adaptor returns to its default configuration;
• (b) the first-end coupling sleeve has first-sleeve inner and outer diameters and the second-end coupling sleeve has second-sleeve inner and outer diameters;
• (c) the skirt-wall inside surface defines a skirt-wall inside diameter larger than the first-sleeve outer diameter, and defines a socket that is configured as a female connector for insertably receiving and retaining by frictional engagement a male coupling member of another conduit,
• (d) in the default configuration, the first-sleeve inner diameter does not reduce as a function of displacement along the central-conduit axis in a direction away from the conduit center portion;
• (e) in the default configuration, at least one of the first-sleeve outer diameter and the second-sleeve outer diameter reduces as a function of displacement along the central-conduit axis in a direction away from the conduit center portion in order to facilitate the implementation of, respectively, the first-end coupling sleeve and the second-end coupling sleeve as a male coupling member;
• and
• (f) the conduit coupling adaptor is integrally molded as a single piece.