Sanitation system particularly for marine craft
OwnerNathan Morrisinventor
Life of this patent
Estimating the term…
Abstract
A macerator/ejector pump within a waste material holding tank on a boat liquefies solid waste material in the tank and pumps the liquefied waste material through a discharge line adapted for connection to an on-shore waste collection system. The macerator/ejector pump comprises a pump and a plurality of cutter blades pitched to direct the liquefied waste to the intake port of the pump, the pump and the cutter blades being driven by a shaft connected to an electric motor mounted on the top of the holding tank. The holding tank may be discharged into the on-shore waste collection system without requiring a shore-based pump-out station. A plurality of rods extend into the holding tank for sensing the level of waste material, and a holding tank monitor displays this level by means of colored indicator lamps.
Claims20
An active sanitation system for vehicles having a holding tank for waste material comprising a motor adapted to be mounted on the holding tank, an elongated shaft adapted to extend into the holding tank, a coupling for coupling a first end of the shaft to the motor, a pump connected to the elongated shaft adjacent to a second end for discharging waste material from the holding tank, and cutter blade means attached to the second end of the shaft adjacent to an intake port of the pump for liquefying waste material in the holding tank, the cutter blade means being pitched to direct the liquefied waste material to the intake port of the pump to assist the pump in discharging the waste material from the holding tank and being free of confining structure so that the cutter blade means has unobstructed access to the waste material.
An active marine sanitation system for a boat comprising an on-board holding tank for waste material, a macerator within the holding tank for liquefying the waste material, an outlet from the holding tank adapted for connection to a passive on-shore waste collection system, and a pump disposed within the holding tank and connected to the outlet for pumping the liquefied waste material to the on-shore collection system, the macerator comprising a cutter blade positioned adjacent to an intake port of the pump, said cutter blade configured to direct liquefied waste material to the pump to assist the pump in discharging the waste material from the holding tank, the cutter blade being free of confining structure so that the cutter blade has unobstructed access to the waste material.
A marine sanitation system comprising passive on-shore waste collection means, a plurality of spaced waste pick-up fittings, and means for connecting the waste pick-up fittings to the on-shore waste collection means, each waste pick-up fitting being disposed on a dock adjacent to one or more boat slips and adapted for connection to an active waste disposal system on-board a boat, said waste disposal system comprising a holding tank for waste material, a macerator within the housing tank for liquefying the waste material, an outlet from the holding tank adapted for connection to a waste pick-up fitting and a pump disposed within the holding tank and connected to the outlet for pumping the liquefied waste material to the on-shore waste collection means, the macerator comprising cutter blade means positioned adjacent to an intake port of the pump, the cutter blade means being free of confining structure so that the cutter blade means has unobstructed access to the waste material, and the cutter blade means being configured to direct liquefied waste material to the pump to assist the pump in pumping the liquefied waste material to the on-shore waste collection means.
Dependencies are inferred from the claim text.