BUBBLE GENERATING DEVICE

Abstract

A bubble-generating device composed of an internal housing and an external cover. The internal housing includes a reservoir that receives a bubble-producing solution. The reservoir is fluidly connected via a channel to a bubble producing ring. The bubble producing solution provides a film over the bubble producing ring. When an aperture that extends through the external cover is aligned with an opening in the ring, air is permitted to pass through the aperture and the opening and impinging on the film over the ring causing bubbles to be generated.

Description

BACKGROUND

1. Field of the Invention

The invention relates to a bubble generating device for an air imparted apparatus, and in particular to providing a bubble producing device for a hula hoop.

2. Description of the Related Art

A myriad of bubble producing implements have been previously designed to generate bubbles in response to an air flow passing across the implement. Likewise, various toys have also been devised which combine recreation with a physical activity. However, very few have been created which combine the use of a recreational toy and a bubble generating device that is encouragingly entertaining and provide physical benefits to its users.

Modernly, it is increasingly becoming more difficult to encourage a youngster to unplug from their electronics devices, leave the confines of the home and to engage in a healthy physical activity. Consequently, there is a need for vigorous devices that encourage physical activity over stagnant media prone devices that detract from healthy activities.

SUMMARY

An object of the present invention is to provide a bubble generating device. The bubble generating device is composed of an internal housing and a retractable cover. The internal housing includes a reservoir that receives a bubble-producing solution. The reservoir is fluidly connected via a channel to a bubble producing ring. The bubble producing solution provides a film over the bubble producing ring generated by a swiper bar. When an aperture that extends through the retractable cover is aligned with an opening in the ring, air is permitted to pass through the aperture and the opening and impinging on the film over the ring causing bubbles to be generated.

These and other objects, features, and/or advantages may accrue from various aspects of embodiments of the present invention, as described in more detail below.

BRIEF DESCRIPTION OF THE DRAWINGS

Various exemplary embodiments will be described in detail, wherein like reference numerals refer to identical or similar components or steps, with reference to the following figures, wherein:

FIG. 1 illustrates an exemplary bubble generating device attached to a hoop and generating bubbles around a user in accordance with this invention.

FIG. 2 depicts the bubble generating device generating bubbles in response to a draft of air passing through an opening in the bubble generating device.

FIG. 3 depicts a partial cross section of the bubble generating device illustrating the fluid path for the bubble producing solution from the reservoir to the bubble ring.

FIG. 4 shows an exploded view of the structure of the internal housing without the sliding cover.

FIG. 5 shows a transparent sliding cover illustrating the bubble generating device in a closed position.

FIG. 6 illustrates the cover extended in an open operable position relative to the internal housing of the bubble generating device.

FIGS. 7-9 illustrate perspective, front and bottom views of the retractable sliding cover.

FIGS. 10-13 depict top, back, bottom and top views of the retractable sliding cover.

FIG. 14 shows a first side construction of the internal housing of the bubble generating device without the retractable sliding cover.

FIG. 15 illustrates a second side construction of the internal housing of the bubble generating device without the retractable sliding cover.

FIG. 16 depicts a front view of a first casing of the bubble generating device without the retractable sliding cover.

FIG. 17 shows a front view of a second casing of the bubble generating device without the retractable sliding cover.

FIG. 18 illustrates a top view of the first and second casings of the bubble generating device without the retractable sliding cover.

FIG. 19 depicts a bottom view of the first and second casings of the bubble generating device without the retractable sliding cover.

FIGS. 20-21 show a perspective and a front view of the bubble ring.

FIGS. 22-24 illustrate perspective and a front view of the bubble ring in an outer bubble ring housing.

FIGS. 25-30 illustrate various views of the first casing of the internal housing.

FIGS. 31-33 depict various perspective views of the first casing of the internal housing.

FIGS. 34-38 depict various views of the second casing of the internal housing.

FIGS. 39-41 show various perspective views of the second casing of the internal housing.

FIGS. 42-44 show various views of the reservoir plug.

FIG. 45 illustrates an exemplary tension spring of the bubble generating device.

FIGS. 46-47 show views of an exemplary conduit of the bubble generating device.

FIG. 48 illustrates an exemplary illumination-generating device.

FIG. 49 illustrates an exemplary whistle-generating device.

DETAILED DESCRIPTION OF EXEMPLARY EMBODIMENTS

Particular embodiments of the present invention will now be described in greater detail with reference to the figures.

FIG. 1 depicts the path of a hoop 12 for an individual user 5 engaged in a vigorous hula hooping activity by which various bubbles are generated from an exemplary bubble generating device 10 according to this subject disclosure. The bubble generating device 10 may generally be attached to a toy. In this instance, the bubble generating device 10 is attached to a hoop 12 formed of an arcurate hollow loop.

The hoop 12 is a toy. The hoop may be comprised an extruded tubular member formed into a rigid closed loop or molded arc sections that are plugged into or attached to each other to form a uniform closed loop. The loop may have a diameter larger than the widest dimension of the user 5 of the toy. The weight and the diameter of the loop forming the hoop is proportioned so that the hoop may be caused to rotate about the body of a user for relatively long periods of time by co-ordinated gyrating movement of the body of the user 5. The hoop may have a friction surface encompassing all or part of the inner periphery of the hoop which contacts the body of the user 5. The hoop may be proportioned to have a diameter of between approximately 30 and 40 inches, and a weight of between approximately 6 ounces upwards to 5 pounds or more.

The hoop may be used by placing it about the body of the user 5 and the user 5 then imparts a spinning motion to the hoop manually. This motion is maintained by suitable synchronized body gyrations. The user must propel the hoop about their body with a sufficient speed to generate a centrifugal force necessary to maintain the hoop at waist level. The physical benefits are greatest when the hoop is placed at waist level before the spinning motion is commenced. Adept users can maintain the hoop at waist level by either back and forth or side to side movement of the body trunk. The preferred hoop or toy is therefore light in weight so that body motion need not be too extensive to maintain continued circular motion around the body of the user to cause the generation of bubble from the bubble generating device 10.

Although a hoop 12 is shown used in combination with the bubble generating device 10, it is to be understood that any suitable toy, device or apparatus able to produce or be subjected to the flow of an air stream across the bubble generating device 10 attached thereto may be used in combination with the bubble generating device 10, such as a bicycle, skateboard, scooter, or quick moving air imparted motion, or the like.

FIG. 2 shows an exemplary embodiment of a bubble generating device 10 attached to the hoop 12 and generating bubbles 16. As the hoop 12 is spun around a user in a circular motion, the bubble generating device 10 travels in a first direction (shown by the arrow). As the bubble generating device 10 travels in the first direction, air is caused to flow in an opposite direction through an opening 14 generating an air filled bubble 16 over the opening of the bubble generating device 10. The further the hoop 12 travels around the user, the more bubbles are generated such as shown in FIG. 1.

FIG. 3 illustrates a cross section of the bubble generating device 10 attached to the hoop 12, and FIG. 4 shows an exploded cross section view of the internal housing 30. The bubble generating device 10 includes a retractable cover 20 biasly supported by a tension spring 25 to cover an internal housing 30. The internal housing 30 comprises a fluid reservoir 40 having a replaceable plug 50 secured into a fill opening 52 into which a bubble-producing solution 54 may be filled. The internal housing 30 includes a fluid conduit 60 that extends from the reservoir 40 to a ring 70. The internal structure 30 includes a first housing 80 and a second housing 90.

The bubble generating solution 54 may be a low surface tension liquid, such as water and soap. The bubble generating solution 54 is fed from the reservoir 40 through a channel in the connector 60 to a ring 70 or film forming element. The film is removed by an air flow through the ring 70 to form a bubble. The bubble generating solution 54 is moved through the conduit 60 to the ring 70 under a centrifugal force and subsequently removed by an air flow through the ring 70 or film forming element caused by rotation of the hoop by gyration of the hips.

In an open position (such as shown in FIG. 6), air is blown across an opening 72. The opening 72 includes a film of the bubble-producing solution 54 disposed there over. As the air impinges through the opening 72 onto the film of the bubble-producing solution 54, bubbles are generated.

FIG. 5 shows a closed position of the bubble generating device 10, and FIG. 6 shows an open position of the bubble generating device 10. As shown in FIG. 5 with the retractable cover 20 transparent, the retractable cover 20 of the bubble generating device 10 is contracted inward and shown in a closed position. That is, the aperture 22 in the retractable cover 20 is not in alignment with the opening 72 in the ring 70 in order to allow air to flow through the ring.

In FIG. 6, the bubble generating device 10 is shown in an open position. That is, in an open position, the retractable cover 20 is extended outward away from a base 42 of the bubble generating device 10. In this position, the aperture 22 in the retractable cover 20 is aligned with the opening 72 in the ring 70 so that air can flow unblocked through the ring 72 and generate bubbles as shown in FIGS. 1-2.

FIGS. 7-13 depict various views of the retractable cover 20. The retractable cover 20 includes a first closed end 21 and a second open end 23. The aperture 22 is disposed at about a central position in the retractable cover 20. The aperture 22 includes a first aperture 22a and a second aperture 22b about both sides of the retractable cover 20 through which air may flow when the first aperture 22a and second aperture 22b are aligned with the opening 72 in the ring 70 as shown in FIG. 6.

The retractable cover 20 includes a oblong recess 24 into which the tension spring 25 may be housed as shown in FIG. 3. An anchor projection 26 is integrated into the recess 24 and the wall of the retractable cover 20. As shown in FIGS. 3, 8-11 and 13, a first end 25a of the tension spring 25 may be attached to the anchor projection 26 integrated into the recess 24 of the retractable cover 20 and a second end 25b of the tension spring 25 may be attached to the internal housing 30.

The retractable cover 20 also includes an integrated squeegee or swiper 29 as shown in FIGS. 5-6 and 9. The swiper 29 serves as a squeegee to spread a film of the bubble-producing solution over the opening 72 in the ring 70 before air flows through the opening 72 and generates bubbles as will be described in more detail below.

The retractable cover 20 further includes a guide aperture 27 into which a guide pin 32 may be received. The guide pin 32 is disposed between the guide aperture 27 in the retractable cover 20 and a guide track 34 provided on the inner housing 30. The guide pin 32 may be secured to a portion of the inner housing 30 as shown in FIGS. 15-17. The guide pin 32 may travel along the guide track 34 between a first end 34a on the guide track 34 and a second end 34b on the guide track 34 as shown in FIG. 15.

In a first closed position as shown in FIG. 5, the guide pin 32 is positioned at the first end 34a on the guide track 34 and the retractable cover 20 is in a closed position. In response to a centrifugal force applied during the circular motion of the hoop 12 movement, the retractable cover 20 pulls the swiper 29 outward drawing a film of the bubble-producing solution 54 over the opening 72 of the ring 70. That is, when the retractable cover 20 moves from the first closed position shown in FIG. 5 to the second open position shown in FIG. 6, the swiper 29 on the retractable cover 20 swipes a quantity of the bubble-producing solution 54 over the opening 72 in the ring 70.

When the retractable cover 20 is in an open position, such as shown in FIG. 6, the guide pin 32 fixed in the guide aperture 27 of the retractable housing 20 has traveled to the second end 34b on the guide track 34 and the retractable cover 20 is open and a fresh film of the bubble-producing solution 54 has been drawn over the opening 72 in the ring 70. In the open position, the aperture 22 in the retractable cover 20 is in alignment with the opening 72 in the ring 70. When the retractable cover 20 is moved from the open position to the closed position, another fresh film of the bubble-producing solution 54 film may be drawn over the opening 72 in the ring 70.

The open end 23 of the retractable cover 20 may be contoured to rest against the reservoir housing 40 as shown in FIGS. 3 and 5. The internal shape of the retractable cover 20 is contoured to fit over the outer shape of the internal housing 30 of the bubble generating device 10.

FIGS. 14-19 illustrate various views of the inner housing 30 without the cover disposed there-over for a better understanding of the inner housing of the bubble-generating device 10. FIGS. 14-15 show a front and rear view of the inner housing 30 structure. The tension spring 25 is shown attached at a second end 25b to a short projection 36 provided on the internal housing 30 adjacent to the plug 50.

As shown in this embodiment, the conduit 60 is provided within recesses in the first housing 80 and the second housing 90. The conduit 60 extends between the housing for the reservoir 40 and the opening 72 in the ring 70. The reservoir 40 housing may be made up of various sections. For example, the reservoir 40 housing may include a first reservoir portion 40a that is a part of the first housing 80 and a second reservoir portion 40b housing that is a part of the second housing 90 as shown in FIGS. 14-19.

As shown in FIG. 19, various attachment mechanisms 38 may be secured to the base of the 42 of the reservoir 40. The attachment mechanism 38 in order to secure the base 42 of the bubble-generating device 10 to another device, such as the hoop 12. The attachment mechanisms 38 may be an adhesive, a two-way tape, a glue, a bonding agent, Velcro ^TM or other suitable securing mechanism. Alternatively, the base 42 end of the bubble-generating device 10 can be integrated within the hoop 12. A pair of plugs may be adapted to fit in either end of the tubing to secure the integrated reservoir provided in the hoop 12.

FIGS. 20-24 illustrate various views of the ring 70 of the bubble-generating device 10. The ring 70 is circular in shape and includes a first outer ring housing 73 surrounding an inner ring housing 74.

The outer ring housing 73 the opening 72 includes a pair of alignment posts 75. A first alignment post 75a may be adapted to fit within a first housing 80 and a second alignment post 75b may be adapted to fit within a second housing 90 as shown in FIG. 3. The outer ring housing 73 includes an inlet opening 71 that is adapted to be attached to a second end 60b of the conduit 60. The outer ring housing 73 includes an outer circular shape 73a and an inner through-hole shape 73b into which the inner ring housing 74 is disposed as shown in FIGS. 22-24.

As shown in FIGS. 20-21, the inner ring housing 74 includes a circular outer alignment groove 76 that fits via a slip fit into the inner through-hole shape 73b in the inner ring housing 74. The inner ring housing 74 further includes a serrated shaped outer surface 74a including a plurality of peaks and valleys into which the bubble-producing solution may collect (as shown in FIG. 3) prior to (and while) being drawn over the opening 72 in the ring 70 as bubbles are generated. In operation, the bubble-producing solution 54 is drawn in through the inlet 71 in the outer ring housing 73 and collects over the serrated surface 74a of the inner ring housing 74 under a centrifugal force as the hoop 12 is spinning around the users' waist.

As mentioned previously, the first alignment post 75a may be adapted to fit within a first casing or housing 80 and a second alignment post 75b may be adapted to fit within a second casing or housing 90.

FIGS. 25-33 illustrate various views of the first housing 80. The first housing 80 includes the reservoir plug opening 52 that communicates into an internal cavity 81 defined within the reservoir 40. As shown, the first housing 80 includes a reservoir outlet 40c from which the bubble-producing solution empties from the cavity 81 within the reservoir 40 into the first end of the conduit 60a.

The first housing 80 may include a contoured internal cavity 82 to accommodate and align an elbow bend in the conduit 60 as shown in FIG. 3. At an upper end 84 opposite the base 42, the upper end 84 of the first housing 80 includes a mating post through-hole 85a to align and accommodate the first post 75a from the ring 70. The upper end 84 of the first housing 80 is shaped and adapted to receive the outer surface structure shape of the outer housing ring 73.

FIGS. 34-41 illustrate various views of the second housing 90 adapted to mesh with the first housing 80 within the internal housing 30 of the bubble-producing device 10. The second housing 90 may also include an internal cavity 91. The combination of the internal cavities 81 and 91 define the internal cavity for the reservoir 40. Although the reservoir outlet 40c from which the bubble-producing solution empties from the cavity 81 is shown integrated into the first housing 80 and a u-shaped contour 93 is provided on second housing to accommodate the outlet 40c, it is to be understood that an outlet may have been integrated into the second housing 90.

The second housing 90 may also include a contoured internal cavity 92 to accommodate and align an elbow bend in the conduit 60 as shown in FIG. 3. At an upper end 94 opposite the base 42, the upper end 94 of the second housing 90 includes a mating post through-hole 95b to align and accommodate the second post 75b from the ring 70. The upper end 94 of the second housing 90 may also shaped and adapted to receive the outer surface structure shape of the outer housing ring 73. It is to be understood that the first and second housings 80, 90 may take a variety of different sizes and shapes according to this subject disclosure.

FIGS. 42-44 depict various views of the reservoir plug 50. The reservoir plug 50 includes a plug shaft 51 and a shoulder 53 wider in diameter then a diameter of the plug shaft 51. In a closed position (as shown in FIG. 3), the plug shaft 51 is inserted into the reservoir opening 52 until the radially extended shoulder 53 is butt up against the front end of the opening 52. A one-way air vent hole 55 may be provided in the plug 50 in order to prevent the inherent vacuum effect that may occur when the bubble-producing solution 54 is drawn out of the reservoir 40 toward the ring 70. As the bubble-producing solution 54 is drawing toward the ring 70, air may enter the reservoir 40 to equilibrate the pressure within the fluid reservoir and to promote the flow of the bubble-producing solution 54 to the ring 70 without letting solution inside the reservoir to leak out.

The reservoir plug 50 may include a pull flange 56. The pull flange 56 is useful when a user wishes to remove the plug 50 for refilling the bubble-producing solution 54, the user may conveniently grab a hold of the extended pull flange 56 to remove the plug 50 from the reservoir opening 52.

FIG. 45 depicts an exemplary tension spring 25 that may be used according to this subject disclosure. However, any suitable spring configuration may be used that is suitable to bias the retractable cover 20 from an open position to a closed position. A suitable tension spring has a sufficient bias force that will pull the retractable cover back from the open position to the closed position when the centrifugal force is low and the bias force can overcome the centrifugal force.

Alternatively, it is to be understood that the bias spring is not essential and various retaining stops may be integrated to cause the retractable cover 20 to be secured in an open position during operation and in a closed position during storage. Such as for example where the bubble-generating device 10 is secured to a bicycle handle. In this instance the bubble-generating device 10 can operate without a centrifugal force being present to open up the retractable cover. The user can manually open and close the retractable cover 20 to initiate and stop the generation of the bubbles. The retaining stops would allow the retractable cover 20 to stay in an open position against a first open retaining stop. When closed, the retractable cover 20 could be manually positioned into a closed position against a second closed stop.

FIGS. 46-47 illustrate the exemplary conduit 60. As discussed above, the conduit 60 may have an inlet 60a attached adjacent to the reservoir 40 and an outlet attached adjacent to the ring 70. The conduit 60 may be provided with various bends to control the flow of the bubble-producing solution from the reservoir 40 to the ring 70. This contoured shape prevents the bubble solution from flowing out. Although shown as a bent circular tubing, the conduit 60 may take a variety of different sizes and shapes that are suitable for controlling the flow rate of the bubble-producing solution 54 from the reservoir 40 to the ring 70.

Alternatively, the internal structural configuration of the first housing 80 and the second housing 90 may be constructed to provide a fluid path for the bubble-producing solution 54 from the reservoir 40 to the ring 70 without the use of a conduit 60.

As understood and mentioned above, the bubble-generating device 10 can use a stand-alone device without the hoop and/or for various use applications such as with a bicycle, skateboard, scooter or the like. A variety of additional features may be added to the bubble-generating device 10. For example, the bubble-generating device 10 can be combined with lights, and/or whistles or other accessories. Other devices may be provided for use with and without a hoop, such as those shown in FIGS. 48-49.

FIG. 48 depicts an exemplary illumination-generating device 200. The illumination-generating device 200 may be composed of a variety of light emitting diodes (LED) 210. As shown, the illumination-generating device 200 includes a housing 220 into which the various LEDs 210 may be provided. The contour of the housing 220 is elongated and thin to simulate a low profile that may be fastened to the hoop 12 as mentioned above with respect to the attachment mechanism 38 of the bubble-producing device 10. An on/off button or motions switch 230 may be provided to activate and deactivate the illumination-generating device 200.

FIG. 49 illustrates an exemplary whistle-generating device 300. The whistle-generating device 300 may include a variety of baffles 310 that generate a whistle sound as air ruses over the baffles 310. As shown, the whistle-generating device 300 includes a housing 320 into which the various baffles 310 may be provided. The contour of the housing 320 may also be elongated and thin to simulate a low profile device that may be fastened to the hoop 12 as mentioned above with respect to the attachment mechanism 38 of the bubble-producing device 10.

The illustrations and examples provided herein are for explanatory purposes and are not intended to limit the scope of the appended claims. It will be recognized by those skilled in the art that changes or modifications may be made to the above described embodiment without departing from the broad inventive concepts of the invention. It is understood therefore that the invention is not limited to the particular embodiment which is described, but is intended to cover all modifications and changes within the scope and spirit of the invention.

Claims

1. A bubble-generating device comprising:

an internal housing comprising: a reservoir to receive a bubble-producing solution; a ring with an opening fluidly connected to the reservoir over which a film of the solution covers;

a retractable cover with a swiper disposed over the internal housing,

where, in an open position, an aperture extending through the retractable cover is aligned with the ring so that an air flow passing through the aperture impinges on the film covering the opening to generate bubbles.

2. The bubble-generating device recited in claim 1, where, in a closed position, an aperture extending through the retractable cover is misaligned with the opening in the ring so that the air cannot flow through the aperture.

3. The bubble-generating device recited in claim 1, where, in a closed position, the aperture in the retractable cover is biased out of alignment with the opening in the ring.

4. The bubble-generating device recited in claim 1, where a spring attached between the retractable cover and the internal housing biases the retractable cover into the closed position.

5. The bubble-generating device recited in claim 1, wherein an inner surface construction of the retractable cover is aligned and dimensioned to fit over an outer surface of the inner housing, such that the retractable cover can be extended and retracted over the inner housing in response to a centrifugal force overcoming a tension force in a tension spring attached between the retractable cover and the inner housing.

6. The bubble-generating device recited in claim 1, wherein a spring force in a biasing element attached between the inner housing and the retractable cover is overcome such that the aperture in the outer housing is extended away from the inner housing into alignment with the opening in the ring into an open position so that air may pass through the aperture and impinge on the film over the opening in the ring causing the bubbles to be generated.

7. The bubble-generating device recited in claim 1, wherein the swiper is provided adjacent to the opening in the ring that spreads the solution across the opening in the ring when the outer housing moves between an open and a closed position, and between the closed and the open position.

8. The bubble-generating device recited in claim 1, wherein the reservoir includes an inlet and a plug removably attached to the inlet.

9. The bubble-generating device recited in claim 1, wherein the reservoir is fluidly connected to a groove in the ring via a conduit that extends between the reservoir and the ring.

10. The bubble-generating device recited in claim 1, wherein the internal housing includes a first casing and a second casing.

11. The bubble-generating device recited in claim 10, wherein the first casing includes a first internal cavity to receive a conduit that fluidly connects the reservoir to the ring.

12. The bubble-generating device recited in claim 11, wherein the second casing includes a second internal cavity to receive the conduit that fluidly connects the reservoir to the ring.

13. The bubble-generating device recited in claim 10, wherein the first and second casings includes a first internal cavity and a second internal cavity defining a conduit path that fluidly connects the reservoir to the ring.

14. The bubble-generating device recited in claim 1, wherein the ring is attached at a first end of the first casing and at a first end of the second casing.

15. The bubble-generating device recited in claim 1, wherein the reservoir is constructed at a second end of the first casing and at a second end of the second casing.

16. The bubble-generating device recited in claim 1, wherein the bubble-generating device includes an attachment mechanism disposed at a peripheral end of the second end of the first casing and the second casing, the attachment mechanism being capable of being attached to another object.

17. A bubble-generating device comprising:

an internal housing comprising: a reservoir to receive a bubble-producing solution; a ring connected to the reservoir over which a film of the solution covers; a conduit fluidly connecting the reservoir to the ring; and

a retractable cover with a swiper slidably disposed over the internal housing, wherein, when a tension force connecting the retractable cover to the inner housing is overcome, the swiper draws a film of the bubble-producing solution over an opening in the ring as an aperture extending through the retractable cover is aligned with the ring, air passing through the aperture impinges on the film covering an opening in the ring causing bubbles to be generated.

18. The bubble-generating device recited in claim 17 wherein an inner surface construction of the retractable cover is aligned and dimensioned to fit over an outer surface of the inner housing, such that the retractable cover can be extended and retracted over the inner housing in response to a centrifugal force overcoming a tension force in a tension spring attached between the retractable cover and the inner housing.

19. The bubble-generating device recited in claim 17 wherein a spring force in a biasing element attached between the inner housing and the retractable cover is overcome such that the aperture in the retractable cover is extended away from the inner housing into alignment with the opening in the ring into an open position so that air may pass through the aperture and impinge on the film over the opening in the ring causing the bubbles to be generated.

20. A bubble-generating device comprising:

an internal housing comprising: a reservoir to receive a bubble-producing solution; a ring connected to the reservoir over which a film of the solution covers; a conduit fluidly connecting the reservoir to the ring; and

a retractable cover with a swiper biased over the internal housing, wherein, when a tension force connecting the retractable cover to the inner housing is overcome by a centrifugal force, the swiper draws a film of the bubble-producing solution over an opening in the ring as apertures extending through the retractable cover are aligned with the opening in the ring, air passing through the apertures applies a pressure on the film covering the opening in the ring thereby causing bubbles to be generated.