Sewage treatment device
First Claim
1. A sewage treatment device for use with a toilet having a water flush input and a sewage output to treat with a disinfectant, comprising in combination:
- a treatment tank;
connecting means for connecting the sewage output from the toilet to said treatment tank enabling water entering the water flush input of the toilet to transfer the sewage from the sewage output of the toilet to said treatment tank;
a disinfectant holding tank for holding the disinfectant;
a macerator blade disposed in said treatment tank;
a rotatable disinfectant pump for pumping disinfectant from said disinfectant holding tank to said treatment tank;
a motor for rotating said macerator blade within said treatment tank and for simultaneously rotating said disinfectant pump for macerating the sewage in said treatment tank and for simultaneously treating the sewage within said treatment tank with the disinfectant;
said macerator blade reducing the particle size of the sewage in said treatment tank concomitantly with said disinfectant pump metering a preselected amount of disinfectant in the treatment tank upon each rotation of said disinfectant pump;
timing means connected to electric power to said motor for macerating the sewage for a preselected period of time and for introducing a specified volume of disinfectant into said treatment tank; and
a discharge pump for discharging the treated sewage from said treatment tank.
2 Assignments
0 Petitions
Accused Products
Abstract
A sewage treatment device [10] is disclosed for use with a toilet [12] having a water flush input [16] and a sewage output [22]. The invention incorporates a treatment tank [56] connected for receiving the sewage from the sewage output [22] of the toilet. A disinfectant holding tank [58] is included for holding a disinfectant such as conventional household bleach. A mascerator blade [74] is disposed within the treatment tank [56] for mascerating the sewage to reduce the size of the particulate matter within the treatment tank [56]. An electric motor rotates the mascerator blade [74] and simultaneously pumps a disinfectant from the disinfectant holding tank [58] to the treatment tank [56]. A discharge pump [86] discharges the treated sewage from the treatment tank [56]. A control senses the level of the sewage in the sewage treatment tank and controls the sequence of operation of the mascerator blade [74] and the discharge pump [86]. The sewage treatment device [10] is suitable for use with a marine head as well as toilets located in mobile vehicles and permanent installations.
-
Citations
14 Claims
-
1. A sewage treatment device for use with a toilet having a water flush input and a sewage output to treat with a disinfectant, comprising in combination:
-
a treatment tank; connecting means for connecting the sewage output from the toilet to said treatment tank enabling water entering the water flush input of the toilet to transfer the sewage from the sewage output of the toilet to said treatment tank; a disinfectant holding tank for holding the disinfectant; a macerator blade disposed in said treatment tank; a rotatable disinfectant pump for pumping disinfectant from said disinfectant holding tank to said treatment tank; a motor for rotating said macerator blade within said treatment tank and for simultaneously rotating said disinfectant pump for macerating the sewage in said treatment tank and for simultaneously treating the sewage within said treatment tank with the disinfectant; said macerator blade reducing the particle size of the sewage in said treatment tank concomitantly with said disinfectant pump metering a preselected amount of disinfectant in the treatment tank upon each rotation of said disinfectant pump; timing means connected to electric power to said motor for macerating the sewage for a preselected period of time and for introducing a specified volume of disinfectant into said treatment tank; and a discharge pump for discharging the treated sewage from said treatment tank. - View Dependent Claims (2, 3, 4, 5, 10, 11, 12, 13, 14)
-
-
6. A sewage treatment device for use with a toilet having a water flush input and a sewage output, comprising in combination:
-
a treatment tank; connecting means for connecting the sewage output from the toilet to said treatment tank; a macerator blade disposed in said treatment tank; a disinfectant pump for pumping disinfectant from said disinfectant holding tank to said treatment tank, said disinfectant pump comprising; a pump housing having a substantially cylindrical chamber; a flexible conduit disposed about at least a portion of the periphery of said substantially cylindrical chamber; eccentric means located within said substantially cylindrical chamber for coaction with said periphery of said substantially cylindrical chamber to depress said flexible conduit upon movement of said eccentric means to pump the disinfectant thereby; means for rotating said macerator blade within said treatment tank and for simultaneously driving said disinfectant pump for macerating and treating the sewage within said treatment tank; and a discharge pump for discharging the treated sewage from said treatment tank.
-
-
7. A sewage treatment device for use with a toilet having a water flush input and a sewage output, comprising in combination:
-
a treatment tank; connecting means for connecting the sewage output from the toilet to said treatment tank; a macerator blade disposed in said treatment tank; a disinfectant pump for pumping disinfectant from said disinfectant holding tank to said treatment tank, said disinfectant pump comprising; a pump housing having a substantially cylindrical chamber; a flexible conduit disposed about at least a portion of the periphery of said substantially cylindrical chamber; eccentric means located within said substantially cylindrical chamber for coaction with said periphery of said substantially cylindrical chamber to depress said flexible conduit upon movement of said eccentric means to pump the disinfectant thereby; means for rotating said macerator blade within said treatment tank and for simultaneously driving said disinfectant pump for macerating and treating the sewage within said treatment tank, said means for rotating said disinfectant pump comprising; a motor having a motor shaft; said eccentric means including an eccentric projection disposed on said motor shaft; a cylindrical rotor connected to said eccentric projection for causing eccentric rotation of said rotor within said substantially cylindrical chamber; and a discharge pump for discharging the treated sewage from said treatment tank.
-
-
8. A sewage treatment device for use with a toilet having a water flush input and a sewage output, comprising in combination:
-
a treatment tank; connecting means for connecting the sewage output from the toilet to said treatment tank; a macerator blade disposed in said treatment tank; a disinfectant pump for pumping disinfectant from said disinfectant holding tank to said treatment tank, said disinfectant pump comprising; a pump housing a substantially cylindrical chamber; a flexible conduit disposed about at least a portion of the periphery of said substantially cylindrical chamber; eccentric means located within said substantially cylindrical chamber for coaction with said periphery of said substantially cylindrical chamber to depress said flexible conduit upon movement of said eccentric means to pump the disinfectant thereby; means for rotating said macerator blade within said treatment tank and for simultaneously driving said disinfectant pump for macerating and treating the sewage within said treatment tank, said means for rotating said disinfectant pump comprising; a motor having a motor shaft; said eccentric means including an eccentric projection disposed on said motor shaft, said eccentric projection being integral with said motor shaft; a cylindrical rotor connected to said eccentric projection for causing eccentric rotation of said rotor within said substantially cylindrical chamber; and a discharge pump for discharging the treated sewage from said treatment tank.
-
-
9. A sewage treatment device for use with a toilet having a water flush input and a sewage output, comprising in combination:
-
a treatment tank; connecting means for connecting the sewage output from the toilet to said treatment tank; a macerator blade disposed in said treatment tank; a disinfectant pump for pumping disinfectant from said disinfectant holding tank to said treatment tank, said disinfectant pump comprising; a pump housing having a substantially cylindrical chamber; a flexible conduit disposed about at least a portion of the periphery of said substantially cylindrical chamber; eccentric means located within said substantially cylindrical chamber for coaction with said periphery of said substantially cylindrical chamber to depress said flexible conduit upon movement of said eccentric means to pump the disinfectant thereby; means for rotating said macerator blade within said treatment tank and for simultaneously driving said disinfectant pump for macerating and treating the sewage within said treatment tank, said means for rotating said disinfectant pump comprising; a motor having a motor shaft; said eccentric means including an eccentric projection disposed on said motor shaft, said eccentric projection being integral with said motor shaft; a cylindrical rotor connected to said eccentric projection for causing eccentric rotation of said rotor within said substantially cylindrical chamber; said motor shaft comprising a harder material than said cylindrical rotor whereby pump wear occurs on said rotor, said cylindrical rotor being replaceable in the event of excessive wear of said cylindrical rotor; and a discharge pump for discharging the treated sewage from said treatment tank.
-
Specification