Portable restroom toilet chemical charging system

Abstract

A portable toilet chemical additive charging system comprises a restroom cabana containing a toilet bowl which opens into a waste-holding tank. A water source, such as a separate water tank, is connected by a conduit to the toilet bowl for delivering flush water to the bowl when a flush pump, that is connected to the conduit, is actuated. The flush water passes through a control valve in the conduit. A chemical additive container is removably positioned near the toilet bowl and is connected by a tube to the control valve. The control valve injects a pre-determined amount of additive to the flush water when flush water is flowed through the control valve to the bowl. Preferably, the container is shaped to closely fit within a space between a vent pipe extending upwardly from the waste-holding tank and the adjacent interior surface of a wall of the cabana. A portion of the container is substantially transparent and exposed so that an observer may view the level of additive content in the container, while the remainder of the container is substantially concealed by the vent pipe.

Description

BACKGROUND OF THE INVENTION [0001] This invention relates to a system which provides a chemical additive to the flush water used in a portable restroom toilet. Portable restrooms, which are also referred to as portable chemical toilets or portable restroom toilets, in general, comprise a cabana or housing within which a toilet bowl and a waste storage tank is positioned. In some of these types of toilets, the toilet opening or bowl is formed in the upper surface of the waste-holding tank so that the bodily waste drops into and is stored within the waste-holding tank. The waste is removed from the tank from time to time as necessary. In some portable restroom toilets, rather than simply operating to drop bodily waste by gravity through the toilet opening into the waste-collecting tank, the waste may be deposited in a bowl, and a bowl flushing system is provided. In such a system the bodily waste is collected within the toilet bowl, which may have a trap or flap upon which waste is de...

AI Technical Summary

Benefits of technology

[0019] Consequently, an objective of this invention is to provide a system wherein chemical additives are positioned within a typical portable restroom toilet, in a manner that the container holding the additive is substantially inconspicuous and yet its contents may be easily observed by a serviceperson who can quickly and efficiently remove and replace, or can refill, a container when necessary.

[0021] Yet another object of this invention is to provide a simplified system for enhancing the flush system in a portable chemical toilet by substantially reducing obnoxious odors and masking unaesthetic appearing materials in the toilet.

[0022] It is a further object of this invention to provide a relatively inexpensive, simplified system which requires minimal labor for installation and servicing, for automatically injecting into the flush water system chemical additives each time that the flush system is operated for flushing waste material into the waste-holding tank.

Problems solved by technology

Because of the nature of the restroom constructions and their uses, they typically exude obnoxious odors from their waste or sewage contents.

Nevertheless, obnoxious odors and the unaesthetic impression of insanitariness due to odors is a common problem in portable restrooms.

However, warm weather may require stronger chemical additives and more frequent “charges.”

Because of intermittent maintenance of the restrooms and variations in the amount of time between applying charges, the effect of any particular charge varies and, also, too much or too little amounts of the additives may be applied.

The time required to mix and to add the “charges” and, also, the waste due to applying excessive amounts of the chemicals, contribute to increasing the operating costs.

And insufficient amounts of additive or long periods between applications of successive additive charges suggest poor service quality or lack of maintenance as manifested by strong sewage odors.

Images