The present invention relates generally to caps for squeeze bottles and more particularly to a simple three-part cap that is robust and simply constructed.
Various squeeze bottle apparatus are known in the prior art. Generally, squeeze bottles are defined in Wikipedia as “a type of container such as a plastic bottle for dispensing a fluid, that is powered by squeezing the container with the user's hand. Its fundamental characteristic is that manual pressure applied to a resilient hollow body is harnessed to compress fluid within it and thereby expel the fluid through some form of nozzle.” Examples include common plastic condiment bottles for ketchup and mustard. These typically are formed with a cylindrical squeeze bottle and a threaded cap with a fixed tapered nozzle. Some caps have open nozzles while others have small covers. Other examples are found in beauty shops and pet grooming establishments and are used for soaps and dyes.
All of the examples tend to be messy and somewhat difficult to use. For better control, some squeeze bottles have rotating nozzles that close the bottle when the nozzle stem is perpendicular to the longitudinal axis of the bottle and open the bottle when the nozzle stem is pointed upward or generally parallel to the longitudinal axis of the bottle. However, these caps are structurally complicated, as shown here in
The inventive apparatus disclosed and claimed here should alleviate these problems.
The inventive cap apparatus is simply constructed and includes a lid component having a rounded shape, an open bottom, a threaded inner portion for engaging a threaded outer portion of a bottle, the threaded inner portion of the lid having a first diameter, the lid component also having an integral lower flange located above the threaded inner portion, an integral sidewall having multiple grooves extending away from the lower flange above the threaded inner portion, an integral beveled surface above the sidewall, an integral upper flange, an integral curved nozzle seat located above the grooves and the upper flange, and a curved nozzle slot; a nozzle component having a generally spherical base with a central opening and an extended conical stem with a central opening, a centerline of the central openings of the base and the conical stem defining a longitudinal axis of the nozzle component, the spherical base for being received by the nozzle seat of the lid component, and the conical stem for rotating within the curved nozzle slot; and a gasket component having a lower circular flange, a circular platform integral with the lower flange, the platform having a sidewall with multiple ribs, each rib for being received by a corresponding groove in the lid component, the circular platform including a top wall surrounding a partial spherically shape seat for the base of the nozzle component, and the top wall extending around to a recess for seating the conical stem of the nozzle, the nozzle seat having a central opening, the central opening in the nozzle seat for selectively aligning with the central openings of the nozzle base and the conical stem of the nozzle component to enable the flowable content of the bottle to exit the bottle wherein the conical stem of the nozzle component is able to rotate about ninety degrees between a closed position where the bottle is closed and the conical stem of the nozzle component is generally perpendicular to a longitudinal axis of the bottle and an open position where the bottle is open and the conical stem of the nozzle component is generally parallel to the longitudinal axis of the bottle.
The invention also relates to a method for assembling a cap apparatus for a squeeze bottle including the steps of providing a rounded lid component having an open bottom, a threaded inner portion for engaging a threaded outer portion of a squeeze bottle, the threaded inner portion of the lid having a first diameter, an integral lower flange located above the threaded inner portion, an integral a sidewall having multiple grooves extending away from the lower flange above the threaded inner portion, an integral beveled surface located above the sidewall, an integral upper flange, an integral curved nozzle seat located above the grooves and the upper flange, and a curved nozzle slot; providing a nozzle component having a generally spherical base with a central opening and an extended conical stem with a central opening, a centerline of the central openings of the spherical base and the conical stem defining a longitudinal axis of the nozzle component; providing a gasket component having a lower circular flange, a circular platform integral with the lower flange, the platform having a sidewall with multiple ribs, each rib for being received by a corresponding groove in the lid, the circular platform including a top wall surrounding a partial spherical-shaped seat for the spherical base of the nozzle component and extending around the platform to a recess, the recess for seating the conical stem of the nozzle component, the nozzle seat having an opening for selectively aligning with the central openings of the spherical base and the conical stem; locating the spherical base of the nozzle component in the nozzle seat of the lid component and the partial spherical seat of the gasket component; locating the conical stem within the curved nozzle slot of the lid component and selectively in the recess of the gasket component; locating the opening in the nozzle seat of the gasket component for selectively aligning with the central openings of the spherical base and the conical stem of the nozzle component to enable flowable content in the bottle to exit the bottle when the longitudinal axis of the nozzle component is generally parallel with a longitudinal axis of the bottle wherein the conical stem of the nozzle component is able to rotate about ninety degrees between an open position where the longitudinal axes of the nozzle component and of the bottle are generally parallel and a closed position where the central opening of the nozzle conical stem is generally perpendicular to the longitudinal axis of the bottle.
For the purpose of facilitating an understanding of the invention, the accompanying drawings and detailed description illustrate a preferred embodiment thereof, from which the invention, its structures, its constructions and operations, its processes, and many related advantages may be readily understood and appreciated.
The following description is provided to enable those skilled in the art to make and use the described embodiments set forth in the best mode contemplated for carrying out the invention. Various modifications, equivalents, variations, and alternatives, however, will remain readily apparent to those skilled in the art. Any and all such modifications, variations, equivalents, and alternatives are intended to fall within the spirit and scope of the present invention.
Referring to
The inventive cap 12 includes three simply constructed components shown in exploded view in
The lid component 20,
The structure of the lid component 20 is simply constructed, easy to take apart from the bottle and other components, easy to clean and easy to reassemble. The inner diameter of the lid may be about 31 mm. The outer diameter of the bottle 10 may also be about 31 mm. In the alternative, bottles and caps of other corresponding dimensions may be used.
The nozzle component 14,
The gasket component 24,
The nozzle seat 94 in the gasket component 24 includes a central opening 102 in a bottom wall 104 that is raised or at a higher level than the bottom of the skirt wall 100, the central opening 102 being selectively aligned with the central openings 62, 66 of the nozzle base portion 60 and of the nozzle cone portion 64, respectively. When the bottle 10 is open, the central opening 102 in the of the nozzle seat 94, the central opening 62 in the spherical base 60, and the central opening 66 in the cone portion 64 are aligned with the longitudinal axis 106,
By simply rotating the cone portion 64 of the nozzle through about ninety degrees, the central opening 62 of the spherical base 60 of the nozzle 12 is misaligned with the central opening 102 in the gasket component 24 so as to close off the contends in the bottle 10 as shown in
The dimension of the inner diameter of the threaded inner portion 32 of the lid component 20 is about 31 mm for a bottle having an outer threaded top of about 33 mm. The height of the bottle may be about 198 mm and may be tapered from a bottom 110 of about 64 mm to an outer diameter of about 40 mm just below the threaded portion 112. The lid and nozzle components may be formed of polypropylene and be somewhat rigid, while the gasket component may be formed of silicone and be flexible.
The flange portion 70 of the gasket component 24 may have a diameter of about 30.6 mm, and a thickness of about 2.5 mm. The height of the gasket component may be about 10.9 mm and the height of the platform may be about 6.6 mm. The diameter of the platform may be about 23.8 mm and the diameter of the skirt wall may be about 19.6 mm. The central opening 102 may have a diameter of about 6 mm and the recess 96 may have a radius of about 4.1 mm and a width of about 8.11 mm. The nozzle seat 94 may have a diameter of about 13.91 mm.
Like the lid and nozzle components, the gasket component is simply constructed resulting in the cap being easily reassembled after being disassembled for cleaning, for example. The three components are cheaper to manufacture and assemble, less likely to leak, will last longer and have better temperature, pressure and corrosion resistance than the prior art caps.
Several more advantages are achieved than those already mentioned above. With the simplified structure, washing and filing the bottle is simple. When the cap is twisted off the bottle, the three components do not fall apart. And because of their simple construction, the components are easily reassembled. The cone portion of the nozzle component 14 is merely inserted into the slot 50 of the lid component 20 and the gasket component 24 is aligned with the spherical base 60 and the cone portion 64 of the nozzle component. Thereafter, the gasket component is pressed into place in the lid component.
In comparison, a prior-art cap shown in
A prior art nozzle 270,
The prior art lid 278,
Operation of the inventive cap 12 relative to the bottle 10 is very simple. The cap 12 is easily removed from the bottle 10 by twisting the cap in a counterclockwise direction when the user is ready to fill the bottle with a flowable content such as ketchup, hair dye, soap and the like. After washing, the nozzle and gasket components are inserted into the lid component, and the lid component is twisted clockwise.
It is noted that throughout this detailed description, words such as “forward,” “rearward,” “upper,” “lower,” “front,” “rear,” “top” and “bottom,” as well as similar positional terms, refer to portions or elements of the cap as they are viewed in the drawings, or in relationship to the positions of the apparatus as it will typically be deployed and moved during use, or to movements of elements based on the configurations illustrated.
The present invention includes a method 400,
From the foregoing, it can be seen that there has been provided a detailed description of features for an improved squeeze bottle cap apparatus as well as a disclosure of a method for making the cap apparatus. While particular embodiments of the present invention has been shown and described in detail, it will be obvious to those skilled in the art that changes and modifications may be made without departing from the invention in its broader aspects. Therefore, the aim is to cover all such changes and modifications as fall within the true spirit and scope of the invention. The matters set forth in the foregoing description and accompanying drawings are offered by way of illustrations only and not as limitations. The actual scope of the invention is to be defined by the subsequent claims when viewed in their proper perspective based on the prior art.