Anti-siphon trap with snorkel
AssigneeFalcon Waterfree Technologies
InventorRobert Avetisian
Life of this patent
Estimating the term…
Abstract
To reduce the barrier sealant amount, the area of a throat (88), communicating an inlet compartment (78) to an outlet opening (64), is made small. Should sealant not be in the throat, wastewater in the throat would be correspondingly small. A snorkel (110) in a discharge section drain tube (98) extends downwards to above the level of the horizontal drain, and allows any air from the external drain to pass to the outlet compartment generally below the ceiling (90) so that, should wastewater cover the opening of the drain tube, such air is permitted to enter into the cartridge and to prevent any syphoning. A three rib channel guide mechanism (100) within the tube guides wastewater flow towards the drain tube center, and away from the drain tube walls to avoid deposit of any sediment contained in the wastewater.
Claims21
In a wastewater cartridge, couplable to an external drain, having an upper wall (60), an opening (64) therein for receipt of wastewater, an inlet compartment (78) which is generally located under the opening for receipt of the wastewater from the opening and which has an outer periphery as defined by a peripheral wall, and a sealant which is contained in the inlet compartment, which is floatable on the wastewater therein and which is disposed to act as a barrier to external drain and other odors, and an outlet compartment communicating with the inlet compartment and the external drain, the improvement comprising:
- a ceiling (90) having a surface of given area bounding the inlet compartment (78), which said ceiling is spaced from the upper wall (60) and from the wastewater-receiving opening (64);
- a separator (76) extending from the upper wall separating the inlet compartment from the outlet compartment;
- and
- a throat (88) communicating the inlet compartment with the wastewater-receiving opening, said throat having an area which is less than the area of said ceiling and which has a lower end,
- whereby the amount of the sealant acting as the barrier, as contained by said throat, is less than any further amount of the sealant under said ceiling which floats on the wastewater in said inlet compartment, and
- whereby said ceiling surface extends outwardly and downwardly from said lower end of said throat to the outer periphery of said inlet compartment as defined by said peripheral wall and said separator (FIGS. 11 & 11A) for enabling the sealant to flow to said throat.
A wastewater cartridge having a wastewater-receiving opening, comprising:
- an inlet compartment for receipt of wastewater extending to an outer periphery, which is defined by a peripheral wall, and having an upper side ceiling (90) terminated by a surface;
- a separator (76) extending from the upper wall for separating the inlet compartment from an outlet compartment;
- a throat (88) communicating the inlet compartment with the wastewater-receiving opening, said throat having an area which is less than the area of said ceiling and which has a lower end,
- the outlet compartment having a terminus for transfer of the wastewater from said inlet compartment to an external drain;
- and
- a discharge section (86) coupled between said outlet compartment and the external drain, a wall disposed in said discharge section and separating said discharge section into a drain tube (98) and a snorkel (110) which extends downwards generally to above the level of the horizontal drain,
- whereby said snorkel allows any air from the external drain to pass to said outlet compartment generally below said ceiling (90) so that, should wastewater covers the opening of said drain tube, such air is permitted to enter and prevent syphoning, and
- whereby said ceiling surface extends outwardly and downwardly from said lower end of said throat to the outer periphery of said inlet compartment as defined by said peripheral wall and said separator (FIG. 11A) for enabling the sealant to flow to said throat.
A method for conserving a liquid quantity of a liquid odor sealant in a wastewater cartridge having an upper wall (60), an opening (64) therein for receipt of wastewater, an inlet compartment (78) which has an outer periphery as defined by a peripheral wall and which is generally positioned under the opening for receipt of the wastewater from the opening, a sealant which is contained in the inlet compartment, which is floatable on the wastewater therein and which is disposed to act as a barrier to external drain and other odors, and an outlet compartment coupled to the inlet compartment, said method comprising the steps of:
- spacing a ceiling (90) of given area of the inlet compartment (78) and having a surface, from the upper wall (60) and from the wastewater-receiving opening (64);
- communicating the inlet compartment with the wastewater-receiving opening by a throat (88) having an area which is less than that of the ceiling and having a lower end;
- separating the inlet and outlet compartments by a separator;
- and
- extending the ceiling surface outwardly and downwardly from the lower end of the throat to an outer periphery of the inlet compartment as defined by the peripheral wall and the separator (FIGS. 11 & 11A) for enabling the sealant to flow to the throat,
- so that the amount of the sealant acting as the barrier, as contained by the throat, is less than any further amount of the sealant under the ceiling which floats on the wastewater in the inlet compartment.
A wastewater cartridge having a top portion with a generally cylindrical configuration and comprising:
- a tubular wall (56);
- an upper wall (60) having an upper surface sloping downwardly from an outer periphery of the tubular wall towards an entrance opening (64) for receipt of wastewater (55);
- an inlet compartment (78) disposed generally below the opening for temporary storage of at least some of the received wastewater;
- an outlet compartment (80) in communication with the inlet compartment for transfer of at least some of the received wastewater to an external drain (not shown),
- a vertical separator (76) extending downwardly from the upper wall for separating the inlet compartment from the outlet compartment;
- a ceiling (90) defining a downwardly facing ceiling surface between the upper wall and the inlet compartment;
- a throat (88) extending through the ceiling from the entrance opening to the inlet compartment, the throat having an area which is less than the area of the ceiling;
- and
- a drain tube (98) within the outlet compartment with a lower end (106) directed towards the external drain and an upper end defining a predetermined outlet level;
- wherein the inlet compartment and the throat are adapted to contain a fluid sealant (57) floating on any wastewater contained therein to thereby act as a barrier to odors from the received wastewater and the external drain,
- characterized in that:
- the ceiling surface extends outwardly and downwardly from a lower end of the throat to an outer periphery of the inlet compartment defined by the tubular wall and the vertical separator (FIG. 11A).
Dependencies are inferred from the claim text.