Dispensing spouts are commonly provided with a threaded connector at one end, an input end of the spout that is opposite a dispensing tip at an opposite output end of the spout. The threaded connector is configured to be removably attachable to a threaded dispenser opening of a container containing a liquid. With the threaded connector of the spout attached to the threaded dispenser opening of the container, the liquid contents of the container can be dispensed through the spout.
A problem encountered when connecting a threaded connector of a spout constructed of a flexible material, for example a plastic material, to the threaded dispenser opening of a container constructed of a more rigid material such as metal is that the flexible material of the threaded connector will at times expand when tightening the threaded connector of the spout on the threaded dispenser opening of the container. The expansion of the threaded connector of the spout causes the internal threads of the threaded connector to ride up and pass over the external threads of the threaded dispenser opening of the container. This expansion of the threaded connector of the spout prevents obtaining a desired tight fit of the threaded connector of the spout on the threaded dispenser opening of the container.
The spout connector and reinforcement ring assembly of this disclosure is comprised of a spout and a separate reinforcement ring. The reinforcement ring is removably attachable on an input end of the spout. The reinforcement ring is dimensioned and configured to fit over the exterior of a threaded connector at one end or the input end of the spout. The reinforcement ring is constructed of a material that is more rigid and less flexible than the material of the spout. By positioning and attaching the reinforcement ring over the exterior surface of the threaded connector at the input end of the spout prior to the threaded connector of the spout being screw threaded on the threaded dispenser opening of a container, the rigid material of the reinforcement ring prevents the expansion of the threaded connector at the input end of the spout and thereby enables the threaded connector at the input end of the spout to be screwed down onto the threaded dispenser opening of the container and obtaining a tight fit of the internal screw threads of the threaded connector over the external screw threads of the threaded dispenser opening of the container.
The features, functions and advantages that have been discussed can be achieved independently in various embodiments or may be combined in yet other embodiments, further details of which can be seen with reference to the following drawings and description.
Further objects and features of the spout connector reinforcement ring assembly are set forth in the following detailed description of the assembly and in the drawing figures.
An input connector 18 is formed integrally on the input end 12 of the spout 10. The input connector 18 is an input threaded connector. The input connector 18 is formed with internal screw threads 22 that surround and form a portion of the interior bore 16 of the spout 10. The input connector 18 is also formed with external screw threads 24 that are opposite the internal screw threads 22. The external screw threads 24 form an exterior surface 24 of the input connector 18. In variant embodiments of the invention, the external screw threads 24 are replaced by a cylindrical exterior surface 24 at the input end 12 of the spout 10 that surrounds the internal screw threads 22 of the input connector 18.
A torque surface 26 is formed on the exterior of the spout 10 adjacent the exterior surface 24 of the input connector 18. The torque surface 26 has an exterior surface configuration that facilitates the transmission of a turning or screwing force to the input connector 18 when attaching the spout 10 to a separate container as will be explained. As represented in the FIGS., the torque surface 26 has a hexagonal configuration. The torque surface 26 could have other equivalent configurations, for example a knurled configuration.
A portion of the length of the spout 10 adjacent to the torque surface 26 is formed in a pleated or accordion type configuration. This configuration of portion 28 of the spout 10 enhances the flexibility of the spout 20 and enables the spout 20 to be more easily bent from side to side along its length. Portion 28 of the spout 10 could be provided with other equivalent types of configurations that enhance the flexibility and the ability of the spout 10 to bend along its length.
A first output threaded connector 32 and a second output threaded connector 34 are formed on the exterior surface of the spout 10 adjacent the output end 14 of the spout. As represented in the FIGS., the first output threaded connector 32 has a large exterior diameter dimension and a large exterior circumference dimension. The second output threaded connector 34 has a small exterior diameter dimension and a small exterior circumference dimension compared to those of the first output threaded connector 32. Both the first output threaded connector 32 and the second output threaded connector 34 are configured to enable the output end 14 of the spout 10 to be attached to internal screw threaded connectors having different internal diameter dimensions.
The ring 40 of the spout connector and reinforcement ring assembly is a separate part from the spout 10 and is represented in
As represented in
In use of the spout connector and reinforcing ring assembly of this disclosure, when it is desired to use the assembly to dispense a liquid from a container, the input connector 18 of the spout 10 is attached to a threaded dispenser opening of the container in a conventional manner. The internal screw threads 22 of the input connector 18 are positioned adjacent to and then screwed on the external screw threads of the threaded dispenser opening of the container.
If as the input connector 18 is screw threaded on the threaded opening of the container it is noted that the relative dimensions of the threaded opening of a container and the internal screw threads 22 of the input connector 18 cause the input connector to expand radially outward. When the radial expansion is too great it can cause the internal screw threads 22 to pass over the external screw threads of the threaded dispenser opening of the container. In this situation, the ring 40 of the assembly can be positioned on the exterior screw threads or exterior surface 24 of the input connector 18 to prevent the expansion. The interior surface 46 of the ring 40 engages in surface contact around the exterior surface 24 of the screw threads of the input connector 18. With the ring 40 having a greater rigidity or being more rigid and less flexible than the input connector 18, and the ring 40 having a lesser flexibility or being less flexible than the input connector 18, the ring 40 prevents the internal screw threads 22 of the input connector 18 and the external screw threads 24 of the input connector from radially expanding as the input connector is screw threaded on or attached on the threaded dispenser opening of the container. With the ring 40 in place on the exterior surface 24 of the input connector 18, the input connector 18 can be screw threaded on the threaded dispenser opening of the container in a tight fit around the threaded opening. The ring 40 positioned on the exterior surface 24 of the input connector 18 prevents the radial expansion of the input connector 18 as the connector is screw threaded onto the threaded dispenser opening of the container, ensuring a tight friction fit between the internal screw threads 22 of the input connector 18 and the external screw threads of the threaded dispenser opening of the container.
As various modifications could be made in the construction of the spout connector reinforcement ring assembly and its method of operation here and described and illustrated without the parting from the scope of the invention, it is intended that all matter contained in the foregoing description or shown in the accompanying drawings shall be interpreted as illustrative rather than limiting. Thus, the breadth and scope of the present disclosure should not be limited by any of the above described exemplary embodiments, but should be defined only in accordance with the following claims appended hereto and their equivalents.
This patent application claims the benefit of the filing date of the provisional patent application Ser. No. 63/441,635, filed Jan. 27, 2023.
Number | Date | Country | |
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63441635 | Jan 2023 | US |