Monogram Industries, Inc.

James M Kemper

Bruce E Wagenhals

William I Mercer

Robert J O'Neill

Jack W Adams

A human waste storage and disposal system for railroads including a toilet bowl, a discharge outlet connected to the bowl, a flushing fluid inlet for flushing the bowl and a vertically disposed receiver coupled to the outlet for receiving the contents discharged from the bowl. A macerator is coupled to both the receiver and a storage tank for withdrawing waste from the receiver, macerating the same and discharging it into the storage tank. Suitable controls are provided for disposing of the macerated waste in the tank in situ or on demand.

Human waste storage and disposal systems for railroads or the like

A macerator pump is disclosed having a collector housing for receiving waste material therein, a positive displacement pump coupled to the housing with an apertured plate separating the same, and a motor coupled to the pump for actuating the same and terminating in the housing with a cutting blade rotatable over the plate. The blade may be continually biased against the plate and the plate may include means for cleaning the blade by kicking any waste material not cut by the blade to a size sufficient to pass through the apertures back into the interior of the collector housing. The blade may also have reversible cutting edges.

Macerator pump

Improvements in a recirculating toilet system wherein at least one human waste receiving receptacle, such as a urinal or toilet bowl, is provided coupled to a separating tank having a predetermined amount of a non-aqueous flushing fluid of a lower density and specific gravity than water therein. A flushing fluid intake floats on top of a layer of the flushing fluid in the tank with water and human waste below the layer. A motor-activated pump flushing fluid recirculating means is coupled to both the intake and the receptacle for withdrawing flushing fluid from the layer in the tank and flushing the receptacle. The float has a detector for detecting the presence of a predetermined amount of wastewater in the flushing fluid being withdrawn from the tank for flushing the receptacle and for detecting the level of the flushing fluid in the tank and deactivates the pump of the recirculating means when this predetermined amount of wastewater is detected.

Recirculating toilet system

A toilet system for use on vehicles, such as railroad trains and boats, wherein the toilet contents are chlorinated and ground into a slurry of a predetermined size prior to pumping out. The system includes a grinder which recirculates the toilet contents through the grinder for a predetermined period of time. The system cannot operate until a chlorine tablet has been inserted into the toilet. A timer may be provided which shuts off the grinder after the aforementioned period of time. A valve may be provided in the system which can be activated to pump out the ground chlorinated contents of the toilet while grinding the same and will run until the holding tak of the toilet is emptied. The macerated and chlorinated waste treated in this system requires a relatively low amount of chlorine and has a bacteria count so low that the ground and chlorinated waste may be dumped in situ, such as along railroad tracks or in a harbor or the like.

System and method for treating human waste

A pumping system for a plurality of recirculating toilets sharing a common tank is described. A variable volume pump has a by-pass valve which is controlled by a pressure sensor in the flush line, to prevent excessive fluid pressure at the toilets. For applications in which the total number of toilets in the system requires a flow exceeding the output of a single pump, additional, substantially identical pumps are provided. A time delay circuit is connected to a pressure switch for energizing a second pump, if the fluid pressure at the toilets does not exceed a predetermined pressure within a set time interval.

Multiple recirculating toilet

A method for preventing a flushing oil used in recirculating toilets from turning yellow and having an offensive odor when contacted with animal waste products containing, among other things, water, carotene, bilirubin, oil soluble unsaturated fats, ammonia, amines and amides such as urea which includes the steps of mixing with said waste products a water-soluble compound having an active chlorine atom whereby said water-soluble chlorine compound is dissolved in the water contained in said waste products and reacts with the ammonia, amines and/or amides to form an oil soluble N-chloro-amine or amine (particularly NCl.sub.3) which is the reaction product of said ammonia, amide or amine contained in said waste product and the chloro containing compound, said chloro-amide or amine being soluble in said flushing oil, and contacting said flushing oil with said N-chloro-amide or amine thereby dissolving said chloro-amide or amine in said flushing oil to contact said oil soluble unsaturated fats, carotene and bilirubin and preventing said oil from turning yellow.

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Sherman Oaks, CA, United States of America

James M Kemper