BACKGROUND OF THE INVENTION
Much of the portable sink prior art is limited in use to specific tasks, e.g., hand washing, utensil washing, personal hygiene, pet care, and camping. The Mosis invention provides an improved portable sink. The Mosis invention is distinguishable from ALL the prior art because it allows the user to draw water from a source other than the self-contained fresh water tank by utilizing an optional external garden hose hook up. The Mosis invention is further distinguishable from ALL prior art because of its more compact design, lighter weight, and ease of mobility.
Although the intended purpose of the Mosis invention is to promote general indoor and outdoor sanitation and health primarily for educational facilities such as: schools, science labs and day care centers, the Mosis invention can also be used for hand washing, utensil washing, personal hygiene, pet care, camping. The Mosis invention significantly expands the limited uses of the prior art by allowing for an optional external water source, making the Mosis invention a viable solution for those persons desiring a more permanent (yet still easily mobile) indoor or outdoor sink.
The Mosis invention's external water source allows it to be used as a stand-alone sink on a more permanent basis if necessary. The supply of fresh water through an optional external connection such as a garden hose gives the Mosis invention the ability to be mobile while also allowing it to be supplied with an endless water supply. Not one of the prior art discussed or researched allows the portable sink to draw water from an external water source. Only the Mosis invention allows this level of versatility.
There have been past attempts at providing a portable sink. For example, U.S. Pat. Nos. 3,594,830, 3,983,583 and 4,072,157 all these inventions rolled about on wheels, which include a basin, faucet, and a tank to store used water. However, the devices disclosed in these patents are all too heavy and bulky to be practical for true portable, use, especially uses outdoors, or in remote locations.
U.S. Pat. Nos. 2,944,862, 4,766,621, and 5,313,676 each are supported by telescoping and/or folding legs. These devices are generally more compact, and of lighter weight design, but are still too bulky, include projections, sharp edges and corners that prevent these designs from being practical for portable use.
U.S. Pat. Nos. 1,358,937, 2,594,938, and 5,301,376 are portable sinks in a carrying case. They have no wheels, and very limited fresh water reserves from a small internal case water supply tank.
U.S. Pat. Nos. 6,173,458, 3,192,537, and 5,813,063 are similar to the Mosis invention, these prior inventions all contain a type of portable sink mounted on a cabinet with wheels utilizing hot and cold water sourced from a fresh water tank with second tank to contain the used water. However, there are several critical differences. The prior inventions may be mobile but their bulk and weight make their mobility impracticable First, the Mosis invention is lightweight, weighing only 109 lbs., a fraction (less than ½) of what the lightest of the aforementioned inventions weigh. The Mosis invention's compact size and weight makes for easier mobility both in and out doors.
The prior inventions primarily address specific market segments such as food service, hair washing and nursing. Although the Mosis invention is primarily intended to service educational facilities, schools, science labs and day care centers, it is sufficiently versatile to be used for many of the same uses encompassed by the prior inventions. The Mosis invention promotes general indoor and outdoor sanitation and health primarily for educational facilities, schools, science labs, libraries and other indoor or outdoor facilities where the need for mobile fresh water exists.
SUMMARY OF THE INVENTION
The invention (hereinafter referred to as the “Mosis” invention) relates to a readily portable sink designed to be used indoors or outdoors providing hot and cold water from either a self-contained fresh water tank or from an optional external water source such as a garden hose.
The Mosis invention comprises of a portable sink, mounted in a lightweight cabinet with wheels for easy mobility. The sink has hot and cold running water. Unlike other inventions, the Mosis invention allows for both an internal (self contained fresh water tank) and an optional external water source (e.g. a garden hose or other faucet connection). The sink has an electric pump, an electric heater, and a high pressure water tubes which control the flow of hot and cold water from either of the two fresh water sources, to the faucet and ultimately to the self contained used water holding tank.
The sink is mounted on a lightweight cabinet weighing approximately 109 pounds when water tanks are empty. The cabinet is made of heavy-duty plastic which is mounted on 4 wheels, 2 swivel wheels with breaks. The sink has both a hot and cold water tubes connected to at least one faucet and a used water holding tank to hold the used water from the sink.
The hot water is provided via an electrical heater mounted within the cabinet that is connected to an external power source. Water that is pumped from either the optional external or the self contained fresh water tank through a water pump to the heater for the heating of the water. The pump also provides cold water to the faucets outside of the circuit of the heater so the sink may produce hot, cold or warm water. For safety, the water temperature is controlled through a regulator and a safety valve that compensates for over pressure.