Patent Application
20240038104
The present invention relates to the field of kinetic art and visual effect display devices and systems used for home or commercial art installations. More specifically, the invention relates to the control of the movement of light particulate matter, such as expanded polystyrene beads or spheres, from one area of a visual display system to another area of the visual display device using a variable flow air array.
A prior patented invention described in U.S. Pat. No. 11,017,697 to Sharp is an improvement on in U.S. Pat. No. 4,215,500 also to Sharp, both of which are incorporated herein by reference. These patents disclose visual display devices that use the principle of a fluidized bed to create interesting visual and audible effects from the motion of beads of expanded polystyrene or similar materials in a stream of flowing air. The '500 patent involves fluidization of the beads in only one column, while the '697 patent introduces a conduit or second column to move beads from one area of the column to another and to dynamically or automatically vary the number of beads in the column.
U.S. Pat. No. 7,302,767 to McKnight provides only one source of airflow that is moving the beads. Beads at the bottom of the display device also move from the outer column to the inner column by the Venturi effect. However, the venturi effect for moving beads is only effective over a short relative distance and fails to disclose multiple independent controllable sources of airflow that combine to form a variable flow air array.
U.S. Pat. No. 7,963,057 B1 and U.S. Pat. No. 8,347,534 B2 both awarded to Ruiz, like McKnight, use a Venturi effect to pull beads from a horizontal collection platform into the bead discharge nozzle so they can be propelled into the air. Similar to McKnight, there are no multiple independently controlled airflows that combine to form a variable flow air array.
U.S. Pat. No. 6,550,169 B1 to Sena provides a novelty display with a fan wherein beads move by gravity and the fan's suction force into the inlet of the fan. The fan then blows them up into and through a tube where they fall back into the viewable portion of the display unit. This patent again only discloses one means of moving the beads through the unit, in this case by a fan. The flow of the beads into this fan is partially through gravity from a sloping ramp. Once the beads are close enough to the fan inlet the fan's suction force will pull them into the fan itself. There is nothing disclosed to slow or stop the movement of beads or their flowrate into the fan to control the number of beads on the ramp or at the bottom of the unit. There is no means disclosed to independently control or at least provide some partially independent control of the number of beads in one area of the display unit. Also, the means disclosed to move the beads through the unit involves running the beads through the fan itself. For a unit that may run for long periods of time, this has a significant disadvantage since the fan blades and the interaction of the blades spinning in a housing over time will damage and or crush the beads. Although this may or may not happen often, over time the number of beads that become damaged and or crushed by the mechanical movement of the blades in the housing will cumulatively become a large number affecting and degrading the overall appearance of the visual display. As such maintenance may be required on a frequent basis to replace the damaged beads which may be difficult, expensive, and time consuming particularly on a larger unit.
U.S. Pat. No. 5,794,364 awarded to Richmond, provides a means of launching spherical projectiles such as balloons from a vertical chute. These round projectiles fall back to a sloping, concave surface and roll back to the vertical chute where they are launched repeatedly. Like Sena, a sloping surface and gravity are the primary means for moving objects of the invention to an upward-moving airstream. Again, as in Sena and other references, there are no multiple independently controlled airflows that combine to form a variable flow air array.
There is a need for a display device or system for creating various visual and audible effects with a plurality of beads that is capable of providing a variable flow air array made up of multiple distinct but coordinated air flows that coalesce with each other into forming the variable flow air array within a chamber of the system to agitate, fluidize, suspend, or float at least some of the plurality of beads creating a dynamic display of beads within the chamber. The present invention is capable of controllable effects such as controllable fountain-like spouts of various sizes, numbers, and intensities of behavior; upside-down waterfalls; more precise spatial control and balancing of the fluidized bed behaviors; and creation of various sizes and intensities of fire and flame-like effects that can be made to appear or disappear in various locations under programmable control, etc. The present invention is directed toward further solutions to address this need, in addition to having other desirable characteristics.
In accordance with embodiments of the present invention, a visual display system is provided. The visual display system includes a chamber and a variable flow air array generation device.
The chamber has a bottom having a screened opening therethrough, a top opposite the bottom; and at least one sidewall extending between the bottom and the top and defining an interior volume. The at least one sidewall has an observation portion providing an internal view of the chamber from an environment external to the chamber. The plurality of beads are disposed within the interior volume of the chamber.
The variable flow air array generation device facilitates a variable flow air array. The device is in fluid communication with the screened opening in the bottom of the chamber. The variable flow air array generation device includes three or more array sections and a controller. The three or more array sections each contribute distinct but coordinated air flows within the chamber that coalesce with each other into forming the variable flow air array. The three or more array sections have a total combined area that is a substantial portion of a total area of the bottom having the screened opening therethrough. The controller is in electronic communication with and controls each of the three or more array sections of the device providing each of the distinct but coordinated air flows. The variable flow air array generated by the device agitates, fluidizes, suspends, or floats at least some of the plurality of beads creating a dynamic display of beads within the chamber.
In accordance with aspects of the present invention, the visual display system further includes a bead transport control subsystem. The bead transport control subsystem includes at least one conduit connecting a first region of the chamber with a second region of the chamber and having a screened opening disposed in a wall or end of the conduit. At least a portion of the plurality of beads can be controlled by an additional airflow passing through the at least one conduit via the screened opening. The additional airflow is controlled at least partially independently from the variable flow air array.
These and other characteristics of the present invention will be more fully understood by reference to the following detailed description in conjunction with the attached drawings described below.
An illustrative embodiment of the present invention relates to a visual display system creating various visual and audible effects from the motion of light particulate matter, such as beads of expanded polystyrene, comprising a chamber through which variable flows of air are configured to agitate, fluidize, suspend, or float at least some of the beads. The system makes use of a novel variable flow air array generation device that facilitates a variable flow air array within the chamber. The device includes three or more array sections and a controller. The three or more array sections each contribute distinct but coordinated air flows that coalesce with each other into forming the variable flow air array within the chamber. The three or more array sections also have a total combined area that is a substantial portion of a total area of the screened area at the bottom of the chamber through which the variable flow air array passes. The controller controls each of the three or more array sections of the device providing each of the distinct but coordinated air flows. The variable flow air array generated by the device agitates, fluidizes, suspends, or floats at least some of a plurality of beads in the chamber creating a dynamic display of beads within the chamber.
The visual display system 100 includes a base assembly 2, a chamber assembly 4, and a top assembly 6. The base assembly 2 includes a chamber base 20 and in certain embodiments, such as shown in
The chamber 41 of the chamber assembly 4 has a bottom 34 where it attaches to the chamber base 20 of the base assembly 2, a top 36 where it attached to the top cap 50 of the top assembly 6, and at least one sidewall 38 extending between the top 36 and bottom 34 and defining an interior volume 102 of the chamber 41. The bottom 34 has a screened opening 44 therethrough. The screened opening 44 can be made of any suitable material such as plastic or metal that can pass air without letting out the particle material or beads 43 contained in the chamber 41. Typically, this screening material will have a hole diameter or opening that is smaller than the diameter of the smallest beads 43 being used in the visual display system 100. The at least one sidewall 38 has an observation portion providing an internal view of the chamber 41 from an environment external to the chamber 41. In certain embodiments, the observation portion of the at least one sidewall 38 comprises a substantially transparent or substantially translucent material such as glass, plexiglass, or polycarbonate.
A plurality of beads 43 is disposed within the interior volume of the chamber 41. In certain embodiments, the plurality of beads 43 comprise lightweight expanded polystyrene plastic beads. Beads 43 can be any relatively lightweight, small material with a density of less than about 1 gram/centimeter3 (gm/cm3) and preferably of spheroid shape. In some embodiments, common expanded polystyrene (EPS) beads such as those used in “bean bag” chairs having a size between 2 and 5 millimeters with a density of about 0.016 to 0.022 gm/cm3. However, for very large displays a larger expanded polystyrene bead size such as up to about 13 mm or larger may be preferred.
The visual display system 100 further includes a variable flow air array generation device 104 that facilitates a variable flow air array 106. The variable flow air array 106 generated by the device 104 agitates, fluidizes, suspends, or floats at least some of the plurality of beads 43 creating a dynamic display of beads 43 within the chamber 41. Here the variable flow air array generation device 104 is housed in the chamber base 20 of the base assembly 2. The device 104 is in fluid communication with the screened opening 44 in the bottom 34 of the chamber 41. The device 104 comprises three or more array sections and a controller 801.
Each of the three or more array sections contributes distinct but coordinated air flows 108 within the chamber 41 that coalesce with each other into forming the variable flow air array 106. The three or more array sections have a total combined area that is a substantial portion of a total area of the bottom 34 having the screened opening 44 therethrough. In certain embodiments, the three or more array sections have a total combined area that is at least 40% of a total area of the bottom 34 having the screened opening 44 therethrough. In some embodiments, the three or more array sections of the variable flow air array generation device 104 are substantially contiguous. In other embodiments, the three or more array sections of the variable flow air array generation device 104 are arranged in a grid, one-dimensional array, multiple spaced one-dimensional arrays, or ring-shaped configuration. Examples of such configurations can be seen in
The controller 801 in electronic communication with and controls each of the three or more array sections of the device 104 providing each of the distinct but coordinated air flows 108. In certain embodiments, the controller 801 of the variable flow air array generation device 104 comprises an analog controller, a processor, or a microcontroller. In some embodiments, the controller 801 of the variable flow air array generation device 104 provides variable signals to each of the three or more array sections individually. The control can be provided via DMX 512 type digital controls or through any analog, digital, networked, software, microprocessor driven, or other methods known to those skilled in the art of controlling airflows with HVAC and industrial controls.
In some embodiments, the system 100 further includes a bead transport control subsystem similar to what is disclosed in U.S. Pat. No. 11,017,697 to Sharp comprising at least one conduit 42 connecting a first region of the chamber 41 with a second region of the chamber 41 and having a screened opening 45 disposed in a wall or end or end of the conduit 42. The conduit 42 may also have one or more screened exhaust openings in the sidewalls as shown in U.S. Pat. No. 11,017,697. In this example, at least one conduit 42 connects to a first region of the chamber 41 via a bottom opening 46 and with a second region of the chamber 41 via a top opening 47. This bead transport system allows at least a portion of the plurality of beads 43 to be controlled by passing an additional airflow 110, 114 through the at least one conduit 42 via the screened opening 45. The additional airflow 110, 114 is controlled at least partially independently from the variable flow air array 106.
In some such embodiments, the bead transport system further comprises a second variable flow air array generation device 112 that facilitates a variable flow air array 110, the second variable flow air array generation device 112 in fluid communication with the screened opening 45 in the conduit 42. The device 112 comprises multiple array sections contributing distinct but coordinated air flows 114 within the conduit 42 that coalesce with each other into a variable flow air array 110.
In certain embodiments, the three or more array sections of the variable flow air array generation device 104 comprise a damper system 221 wherein each of the one or more sections is a damper 922. An example of this can be seen in
Fan 12 discharges into and feeds the chamber base 20 (in this case through column base 30). The three or more array sections of the variable flow air array generation device 104, in this example damper system 221, are disposed between the bottom fan 12 and the screened opening 44 of the bottom of the chamber 41. In this example, each of the individual dampers 922 are mounted in an array on a mounting plate 921 below the screened opening 44 to form the damper system 221 such the discharge from the fan 12 passes through the individual dampers 922 of system 221 creating distinct but coordinated air flows 108 within the chamber 41 that coalesce with each other into forming the variable flow air array 106.
In certain embodiments, the controllable damper system 221 comprises a second damper system 222. An example of this can be seen in
In certain embodiments, the system 100 further comprises a honeycomb airflow straightener 22 or fine mesh screen disposed between and in fluid communication with the screened opening 44 of the bottom 34 of the chamber 41 and one or more of the three or more array sections (damper system 221 in
In certain embodiments, the visual display system 100 further comprises one or more light sources 421, 451. Here, light sources 421 are disposed between the screened opening 44 of the bottom 34 of the chamber 41 and the one or more of the three or more array sections of the variable flow air array generation device 104 to shine up into the chamber 41 to illuminate the underside of the chamber 41. In some such embodiments, at least one of the one or more light sources 421 is disposed in at least one of the three or more array sections. Light sources 451 are disposed in the top cap 50 so as to shine down into the chamber 41 and illuminate the chamber 41 from the top. These lights can be of any type, but LED lights whose color and intensity can be controlled by the controller 801 either manually or digitally through DMX 512 type or other types of electronic control systems and programmed to run with a preset routine or interactively are preferred.
In embodiments where the visual display system 100 further includes a bead transport control subsystem, this system can also include one or more dampers 211, 231, 232 configured to vary at least a volume of the additional airflow to fluidize or cause the plurality of beads 43 to move through the at least one conduit 42. In the embodiments of
In some such embodiments, further including a bead transport control subsystem, such as seen in
In certain embodiments, the top fan cap 60 further includes light sources 462 disposed in the top fan cap 60 so as to shine down into the chamber 41 and illuminate the chamber 41 from the top. The lights are arranged so as to not impede airflow. These lights can be of any type, but LED lights whose color and intensity can be controlled by the controller 801 either manually or digitally through DMX 512 type or other types of electronic control systems and programmed to run with a preset routine or interactively are preferred.
In some versions of this embodiment including a bead transport control subsystem that uses a damper system 231, the controllable damper system 231 comprises a second damper system 232. An example of this can be seen in
In embodiments where the visual display system 100 further includes a bead transport control subsystem, this system can also include additional airflow control device 331 comprising one or more bead transport fans 936, 937 configured to vary at least a volume of the additional airflow. An example of this can be seen in
For a wider range of effects, some of the fans 926 may be either turned off or run at very low speed. Under these conditions where some of the fans 926 are operating at higher speeds, the positive pressure generated by the higher speed operating fans can force air back down or in reverse through the fans that are turned off or are operating at much lower speeds. To prevent this leakage or wasteful short-circuiting of airflow back around the higher speed fans, either a gravity-fed or spring-loaded damper 922 in series with the low or zero-speed fans may automatically close or a controllable damper 922 can be commanded closed to prevent this backflow of air or uncontrolled reversal of airflow through the lower speed or turned off fans. In lieu of using these extra backdraft or controllable on/off fans, reverse flow can be prevented in embodiments such as shown in
The other purpose for at least a fast operating on/off damper 922 is to provide a rapid change in the volume of airflow through the chamber 41 or conduit 42. Fans 926 typically have enough inertia in their fan wheels or blades so it can take 5 to 20 seconds or more to accelerate to full or a higher speed or decelerate to zero or a lower speed. A damper 922 with a fast, 0.5 to 5 second damper operator, a fast linear actuator, or a fast linear or rotary solenoid can open or close a damper 922 much faster to increase or decrease the air into the column more quickly than by just using a fan 926 alone. This can be used to enhance various effects.
In embodiments where the visual display system 100 further includes a bead transport control subsystem, this system can also include a damper system 232 used in conjunction with the additional airflow control device 331 comprising one or more bead transport fans 936, 937.
In certain embodiments, one or more of the three or more array sections of the variable flow air array generation device 104 further comprises a channel 621, 622 in fluid communication with the array section providing a better definition to the airflow exiting the array section. Examples of these channels 621, 622 can be seen in
In visual display systems 100 further including a bead transport control subsystem, the system 100 can also include channels 631 configured in a similar fashion as channels 621 and 622.
In certain embodiments, at least a portion of one of the channels 621, and 622 is lined with sound dampening material as would be readily understood by those of ordinary skill in the art to help reduce the level of noise from the fans that is heard outside the visual display device.
It should be understood that the examples and embodiments depicted herein can be modified and combined in any number of combinations. For example, one or more of the three or more array sections of the variable flow air array generation device 104 can have a different size or configuration from the other array sections of the variable flow air array generation device. Other possible configurations and implementations will be apparent to one skilled in the art given the benefit of this disclosure.
As utilized herein, the terms “comprises” and “comprising” are intended to be construed as being inclusive, not exclusive. As utilized herein, the terms “exemplary”, “example”, and “illustrative”, are intended to mean “serving as an example, instance, or illustration” and should not be construed as indicating, or not indicating, a preferred or advantageous configuration relative to other configurations. As utilized herein, the terms “about”, “generally”, and “approximately” are intended to cover variations that may existing in the upper and lower limits of the ranges of subjective or objective values, such as variations in properties, parameters, sizes, and dimensions. In one non-limiting example, the terms “about”, “generally”, and “approximately” mean at, or plus 10 percent or less, or minus 10 percent or less. In one non-limiting example, the terms “about”, “generally”, and “approximately” mean sufficiently close to be deemed by one of skill in the art in the relevant field to be included. As utilized herein, the term “substantially” refers to the complete or nearly complete extend or degree of an action, characteristic, property, state, structure, item, or result, as would be appreciated by one of skill in the art. For example, an object that is “substantially” circular would mean that the object is either completely a circle to mathematically determinable limits, or nearly a circle as would be recognized or understood by one of skill in the art. The exact allowable degree of deviation from absolute completeness may in some instances depend on the specific context. However, in general, the nearness of completion will be so as to have the same overall result as if absolute and total completion were achieved or obtained. The use of “substantially” is equally applicable when utilized in a negative connotation to refer to the complete or near complete lack of an action, characteristic, property, state, structure, item, or result, as would be appreciated by one of skill in the art.
Numerous modifications and alternative embodiments of the present invention will be apparent to those skilled in the art in view of the foregoing description. Accordingly, this description is to be construed as illustrative only and is for the purpose of teaching those skilled in the art the best mode for carrying out the present invention. Details of the structure may vary substantially without departing from the spirit of the present invention, and exclusive use of all modifications that come within the scope of the appended claims is reserved. Within this specification embodiments have been described in a way which enables a clear and concise specification to be written, but it is intended and will be appreciated that embodiments may be variously combined or separated without parting from the invention. It is intended that the present invention be limited only to the extent required by the appended claims and the applicable rules of law.
It is also to be understood that the following claims are to cover all generic and specific features of the invention described herein, and all statements of the scope of the invention which, as a matter of language, might be said to fall therebetween.
