Abstract:
A trailer, intended to be towed on public thoroughfares by a motorized vehicle, that readily converts to a mobile refreshment stand for use at parties and other places where a mobile refreshment stand may be desired having built-in refreshment disbursing, electrical power and refrigeration systems along with customer seating and storage space therein for carrying supplies.

Description:
BACKGROUND OF THE INVENTION 
   1. Field of the Invention 
   This invention relates generally to the field of trailers and more particularly to a novel and improved trailer capable of being towed on public thoroughfares by a motorized vehicle, such as a car or golf cart type vehicles, or even moved manually for short distances, and that readily converts to a mobile, self-contained refreshment stand for use at parties, sporting events, business functions and other places where a mobile refreshment stand may be desired in combination with a trailer having built-in refreshment disbursing, electrical power (for example, 120 VAC or 12VDC electrical systems by using generators, inverters, or battery power) and refrigeration or cooling systems along with built-in customer seating and storage space therein for carrying supplies. 
   2. Description of the Prior Art 
   Many social gatherings are occurring at outside locations that lack a central gathering spot, such as a mobile refreshment stand around which partygoers can congregate. As such, there is no cohesiveness of the partygoers and it is difficult to sustain the fun and excitement that a central gathering spot can provide. Also, a centralized meeting place enlivens a party by providing a spot to meet and greet both old and new friends, encouraging renewed and new friendships by its lively atmosphere and decor which can set the tone of a party. 
   Likewise, if a social gathering is planned, the planners must make provision for providing refreshment to the partygoers without causing permanent disruption to the facility or party location. This is especially difficult where the location is remote and liquid refreshment is to be disbursed, as electrical and refrigeration systems are normally desired and required for the successful and efficient disbursement of liquid refreshment to a crowd and not necessarily readily accessible in such locations. Thus, if such systems are to be provided separately, the planners must carefully pick a set-up location that is located close to existing facilities and, once chosen, cannot be changed without a great deal of difficulty if at all. 
   An example of an existing prior art mobile refreshment stand is U.S. Pat. No. 5,251,790 to Cohn et al. for a Mobile Bar for Dispensing Cold Beverages. However, known prior art examples appear to be mobile within a limited area, such as a building, or are mobile by hand movement only and lack the ability to be towed to a particular site by a motorized vehicle on public thoroughfares. Generally, these known prior art examples are all designed to be bought by a facility, such as a hotel or resort, and then moved by hand to a party location within the building or on the hotel/resort grounds where they are connected to external electrical power, drainage and refreshment disbursing systems. They are similar to movable pieces of furniture similar to a fancy table that can be utilized as a bar. 
   Known prior art trailers, such as picnic and camping trailers, evidenced by U.S. Pat. No. 3,940,175 to Robison for a Multi-Purpose Combination Trailer and Picnic Table; U.S. Pat. No. 3,492,042 to Nachtigall, Jr. for a Vehicle Body; U.S. Pat. No. 3,741,606 to Grier for a Camping Trailer; U.S. Pat. No. 4,167,284 to Messina for Collapsible Campers; U.S. Pat. No. 4,194,785 to Cox et al. for a Camper; U.S. Pat. No. 4,535,933 to Kuiper for a Vehicle with Tiltable Side Walls; U.S. Pat. No. 5,108,122 to Beagley for an Exhibitor Trailer; U.S. Pat. No. 4,842,316 to Lerma et al. for a Picnic Trailer Apparatus; and, U.S. Pat. No. 1,871,828 to Van Vorst for a Trailer, all lack the ability to provide the convenience and built-in systems in a unit having a configuration to provide for refreshment disbursement in an easy, convenient and efficient manner that can be towed on a public road. 
   The present invention deals with and solves the problems that arise in attempting to design and manufacture a mobile refreshment center that is capable of being easily moved to any desired spot and is self-supporting or generally independent of the environment in which it is placed to provide refreshment services while making a minimal impact on its environment. 
   Specifically, the present invention is directed toward meeting the problems that arise in attempting to design and manufacture a mobile refreshment center capable of being towed on public roads by a motorized vehicle and that can provide refreshment services and an attractive gathering spot for social functions. 
   SUMMARY OF THE INVENTION 
   It is an object of the present invention to provide a mobile refreshment stand that is capable of being towed by a motor vehicle on a public thoroughfare. 
   It is an additional object of the present invention to provide a mobile refreshment stand that is generally self-contained to provide liquid refreshment disbursing systems. 
   It is a further object of the present invention to provide a mobile refreshment stand that is generally self-contained to provide refrigeration or cooling systems to maintaining refreshments cool and to provide ice. 
   It is an object of the present invention to provide a mobile refreshment stand that is generally self-contained to provide electrical power for use at the stand. 
   It is an additional object of the present invention to provide a mobile refreshment stand that is generally self-contained to make a minimal impact on the environment where it is set up for use. 
   In general, the invention is embodied in a trailer that intended to be towed on public thoroughfares by a motorized vehicle. The trailer readily converts to a mobile refreshment stand for use at parties and other places where a mobile refreshment stand may be desired having built-in refreshment disbursing, electrical power and refrigeration systems along with built-in customer seating and storage space therein for carrying supplies. 

   
     BRIEF DESCRIPTION OF THE DRAWINGS 
       FIG. 1  is a perspective view of a mobile trailer embodying the present invention; 
       FIG. 2  is a skeletal perspective view of a mobile trailer embodying the present invention similar to that of  FIG. 1 ; 
       FIG. 3  is a perspective view of a mobile trailer embodying the present invention similar to that of  FIG. 1  from a different angle; 
       FIG. 4  is a skeletal perspective view of a mobile trailer embodying the present invention similar to that of  FIG. 3 ; 
       FIG. 5  is a detail view of one preferred embodiment of folding bar stools in a mobile trailer embodying the present invention; and, 
       FIG. 6  is a detail view of a preferred road towing tongue and nose wheel assembly in a mobile trailer embodying the present invention. 
       FIG. 7  is a perspective view of a mobile trailer embodying the present invention similar to that of  FIG. 1 , showing in dotted outline various internal components and connections. 
   

   DETAILED DESCRIPTION OF THE INVENTION 
   The present invention is directed to a mobile bar that is intended for towing behind a motorized vehicle as a trailer or more locally moved by hand. A preferred embodiment of the invention in a mobile bar, food and refreshment disbursement center is illustrated in  FIGS. 1 to 6 . 
   It is preferred, as shown in  FIGS. 1 to 4 , that the mobile bar, generally referred to by the reference numeral  10 , be constructed on a trailerable, street legal chassis having a horizontally disposed frame  12  with longitudinally extending frame members  14  and transversely extending cross-frame members  16 . An axle extends longitudinally of the frame  12  and has a wheel  18  rotatably supported on each end thereof to both support the chassis and allow easy movement of the chassis. 
   It is also within the scope of the present invention to utilize a metal flooring plate  20  to provide the longitudinal and transverse frame upon which the unit may be constructed without the use of individual beam members that may instead be welded directed to the flooring plate  20 . 
   Generally, it is preferred that the wheels  18  be widely spaced apart for stability of the chassis during towing. To assist in stability, the wheels  18  are preferably connected to frame  12  using a torsion bar axle  13  best seen in  FIG. 7  instead of a leaf spring arrangement. While the leaf spring arrangement is also included within the scope of this invention, use of a torsion bar axle arrangement allows for greater towing stability of the chassis by allowing a greater range of wheel placement due to the smaller installation footprint of the torsion bar axle versus the leaf spring arrangement. 
   To further assist in chassis stability, both during movement by golf cart or by hand and while the mobile bar is situated for use, it is preferred that a third wheel  22  be added to the other two wheels  18  discussed above. In order to do this, a tongue  24  is added to the chassis and extends transversely of frame  12 . This tongue  24  is adapted to retain releasably a swiveling nose wheel assembly  26  that supports frame  12  in a tricycle arrangement. The nose wheel  26  arrangement preferably works in conjunction with a screw jack system  28  on the unit that allows for tongue  24  to be raised or lowered to level the chassis to accommodate uneven ground where the chassis is to be located for use. Thus locations with a given pitch can be easily accommodated by raising or lowering either or both the nose wheel assembly  26  or tongue  24  by using the screw jack mechanism to level the chassis for use. Two manually extended stabiliziers can be located adjacent the nose wheel assembly  26  for greater ease in stabilizing the unit on uneven ground. Likewise, it is also contemplated as being within the scope of this invention that a ratchet assembly may be used in place of the screw jack assembly. In fact, as indicated below the nose wheel assembly  26  may be removable from the towing bar  24  leaving the stabilizing mechanism in place to provide some security against unauthorized movement of the unit as there would only be two remaining wheels holding the unit, making it difficult to move the unit without the removed nose wheel assembly. 
   The tongue  24  is also adapted in one preferred embodiment to retain releasably a towing bar  30  for attachment to a motorized vehicle for towing of the mobile bar. This towing bar attachment  30  may attach directly to the extending tongue assembly  24 , or to the nose wheel assembly  26 , while the nose wheel assembly is connected to the extending tongue assembly  24 . 
   Likewise, it is also contemplated that a jacking assembly may be incorporated into the extending tongue, attached thereto, or even incorporated into the chassis of the unit itself, so that the chassis may be leveled without a nose wheel being attached to the tongue. 
   Next, a compartment is necessary to form the body of the mobile bar unit and provide a gathering and storage space for use as described below. 
   A compartment  32  forms the body of the mobile bar unit and is mounted on the frame  12 . Generally, the compartment is defined by a pair of transversely spaced apart longitudinally extending front and rear wall members  34 , and a pair of longitudinally spaced apart transversely extending vertically disposed side wall members  36  interconnecting the front and rear wall members  34  at opposite ends thereof. 
   While the preferred description being described here is of a generally solid rectangular compartment, it is also within the scope of this invention and its claims that the compartment have other shapes, such as circular, oval or U-shaped as illustrated in the FIGURES. 
   As the chassis is to be street legal for towing on a public road by a motorized vehicle, braking and turning indicators  38  are mounted on the rear wall that meet the vehicle code requirements for a street-legal trailer. The indicators are provided with the standard electrical wiring for connection to the towing vehicle to control the braking and turning indicators  38 . 
   As the unit is preferably used as a mobile bar, or a social gathering spot, preferably a generally flat counter top member  40  closes the top portion of the compartment  32  so that it may be used as a bar for refreshment or food disbursement and for the convenience of customers. 
   Likewise, both for visual effect as well as protection, a canopy  42  is provided to cover the bar or counter top area  40  of the unit. Preferably canopy  42  is telescopically supported relative to the counter top  40  so that it may be elevated thereabove to provide a shade and weather protective element for both the bar and customers seated thereat when extended, and a protective cover for counter top member  40  when collapsed. In the collapsed position, canopy  42  also provides protection to the unit while it is being towed and from vandals when not in use. 
   The canopy  42  may be manually extended using a ratchet, screw or pin and hole arrangement, or automatically by using a motorized unit  44  that is manually or automatically controlled for raising and lowering canopy  42 . 
   As the unit is preferably not only a beverage or food dispensing trailer, but one that offers a social gathering and focal spot for parties, built-in seating  46  is provided for guests and customers to make the unit more friendly and independent of its surroundings. Accordingly, seat members  46  are mounted on the wall members  34 ,  36  of compartment  32 . These seats may be pivotably mounted to the walls members  34 ,  36  as shown in THE FIGS., and move between a first extended position for use by an individual and a second stowed position against its wall member for towing purposes as shown best in  FIG. 5 . This is a preferable arrangement, as having the seats secured against the outside of the compartment during towing allows for greater storage space inside of the compartment than if the seats were removable and had to be stored in the compartment. However, this latter arrangement is also within the scope of the present invention and in that case the seats may be mounted on posts  48  extending from the compartment walls. In this case, the seats may be removed and stored in the compartment when not in use or when the unit is being towed or moved. Likewise, the seats may be mounted telescopically on posts connected to the chassis and have seat cushions that swivel from a generally horizontal position for sitting, to a vertical position flat against the sidewalls during travel or for storage purposes similar to that described above for pivotal attachment of the seats. 
   The unit, as it is designed for the disbursement of liquid refreshments, and many times such liquid refreshments are best served chilled or with ice, preferably contains a refrigeration or cooling unit  50  mounted in compartment  32 . One such preferred refrigeration or cooling unit  50  is to provide an insulated ice chest sub-compartment within the main compartment. In this embodiment, ice blocks would be stored in this ice chest for use. Also as best seen in  FIG. 7 , an electrically powered refrigeration unit  66  can be added to the main compartment and powered as indicated below by either an internal electrical source such as battery  52  or from an external electrical source via external electrical power plug  68 . 
   In order to provide greater convenience to the use of the unit and to help achieve its objectives of providing a social gathering spot for parties and the like, a source of electrical power is preferably associated with the unit. One such preferable embodiment of an electrical power source is accomplished by mounting a battery  52  in the main compartment. The battery (or batteries) may be use alone to provide a DC voltage or may be used in conjunction with inverter units to provide AC voltage. An electrical generator  54  can also be mounted in the main compartment. Additionally, an input plug  60  designed for connection to an external source of electrical power may be added to the compartment so that once connected, electrical power is available to the unit. 
   As the unit is to be used as a mobile bar or social gathering venue for individuals, it is preferred that a beverage dispensing system  64  be also mounted in the main compartment for providing liquid refreshment. This can be accomplished by providing space in the main compartment for pressurized beverage containers such as beer kegs, or by providing a pressure system using electrical power or pressurized containers to dispense the liquid refreshment. However, while it is preferable that the liquid refreshment dispensing system be integral to the unit, it is also within the scope of this invention that provision be made for external connection  62  to an existing liquid refreshment dispensing system be provided. Specifically, external pressurized containers may be connected to input connections  62  in the unit that then allow the contents of the external containers to be dispensed using the internal liquid dispensing system  64  of the unit as best seen in  FIG. 7 . 
   The unit is to provide a spot that attracts and encourages social gathering. Accordingly, it is preferred that the unit provides both visual and physical attraction to the party goers. One such preferred method of making the unit visually attractive, is to add decoration to the walls and canopy of the unit, such as split bamboo to the compartment walls and thatching to the canopy to resemble a South Seas locale, or other theme exterior decors as desired, or electrical lights  56  mounted on the canopy  42  or counter top area  40  and powered by the electrical power source of the unit to provide atmosphere and a visual attractor noticeable even in crowded venues. The lighting has an additional benefit of aiding a bar tender&#39;s vision during evening hours when lighting might otherwise not be available from external sources. Electronic entertainment systems, such as a CD player, karaoke player, etc., may also be added to the compartment to entertain and draw a crowd. A method of making the unit physically convenient and attractive is the additional of a foot railing mounted on the lower portion of the main compartment sidewalls. The addition of a foot railing  58 , especially on the back sidewall  34  gives the additional benefit of acting as a bumper during towing of the unit. If unnecessary to meet street legal towing requirements, the foot railing  34  may be removable or may be retractable into the body of the compartment of the unit/by being retractable towards the frame. 
   Certain modifications and improvements will occur to those skilled in the art upon a reading of the foregoing description. It should be understood that the present invention is not limited to any particular type of trailerable chassis design or arrangement. One of ordinary skill in the art will recognize that there are different manners in which these elements described above can provide to accomplish the present invention. The present invention is intended to cover what is claimed and any equivalents. The specific embodiments used herein are to aid in the understanding of the present invention, and should not be used to limit the scope of the invention in a manner narrower than the claims and their equivalents.