Claims
- 1. A Hydro-pneumatic force flushing system for toilets having a bowl for the reception of rinse and fill water to a water level therein set by a syphon trap and having a raised water storage tank in which there is a riser vent from said bowl and open to atmosphere above a high water level controlled by a means responsive to water level in the tank and having a normally closed flush valve closing a flush passage opening from said tank and into said bowl, the toilet bowl having an upwardly open rim spaced, substantially above the water level in said bowl to form an air chamber upwardly open to atmosphere and for the reception of waste into the water level therein, the flushing system including;
- a primary air seal means for engagement with the bowl rim and preventing any out flow of air from the bowl rim to atmosphere,
- a secondary air seal means in the flush passage for preventing any out flow of air through the riser vent to atmosphere when flushing,
- and a flush control means to open the flush valve for discharge of storage tank water through the flush passage and into the toilet bowl,
- whereby entrapped air in said toilet bowl chamber is pressurized and adds to the gravitational effect of the water discharge to force flush water to syphon through the toilet trap.
- 2. The hydro-pneumatic toilet flushing system as set forth in claim 1, wherein the primary air seal means is comprised of a member engageable between the upwardly open rim of the toilet bowl and a cover therefor.
- 3. The hydro-pneumatic toilet flushing system as set forth in claim 1, wherein the primary air seal means is comprised of a first seal member engageable between the upwardly open rim of the toilet bowl and a seat ring overlying the same, and a second seal member engageable between the seat ring and an overlying cover therefor.
- 4. The hydro-pneumatic toilet flushing system as set forth in claim 2, wherein the primary air seal means member is an inwardly faced flap carried by a seat ring and having a lip coextensively engaged with the upwardly open rim of the toilet bowl to prevent said any out flow of air and to permit in flow of air into the toilet bowl chamber.
- 5. The hydro-pneumatic toilet flushing system as set forth in claim 3, wherein the first seal member and the second seal member of the primary air seal means are inwardly faced flaps carried by the seat ring and cover respectively, and each having a lip coextensively engaged with the upwardly open rim of the toilet bowl and seat ring respectively, to prevent said any out flow of air from and to permit in flow of air into the toilet bowl chamber.
- 6. The hydro-pneumatic toilet flushing system as set forth in claim 2, wherein a latch means releasably locks the cover in a down position to engage the member of the primary air seal means.
- 7. The hydro-pneumatic toilet flushing system as set forth in claim 3, wherein a latch means releasably locks the cover in a down position to engage both the first and the second seal members of the primary air seal means.
- 8. The hydro-pneumatic toilet flushing system as set forth in claim 1, wherein the secondary air seal means is a flooded condition of the flush passage that prevents out flow of air through the riser vent while permitting free flow of storage tank water therethrough and into the toilet bowl chamber.
- 9. The hydro-pneumatic toilet flushing system as set forth in claim 1, wherein the flush valve is comprised of a member held normally closed by a head of water in the storage tank, the flush control means being comprised of a lift lever to open said flush valve member and a float connected to said flush valve member by a link and positioned substantially above said flush valve member to float downward to close the flush valve member at a low water level in the storage tank substantially above the closed flush valve member held normally closed.
- 10. The hydro-pneumatic toilet flushing system as set forth in claim 1, wherein the means responsive to water level in the storage tank is a float valve means for limiting the high water level in the storage tank.
- 11. The hydro-pneumatic toilet flushing system as set forth in claim 1, wherein the primary air seal means includes a pneumatic flush enforcement means for releasably locking a cover and a seat of the primary air seal means in a horizontal position.
- 12. The Hydro-pneumatic toilet flushing system asset forth in claim 11, wherein the flush control means is coupled to the cover to open and close the primary air seal and to open the flush valve.
- 13. The hydro-pneumatic toilet flushing system as set forth in claim 11, wherein the flush control means includes sequencing means opening the flush valve when said cover is closing and closing the flush valve when said cover is closed.
- 14. The hydro-pneumatic toilet flushing system as set forth in claim 13, wherein the sequencing means is comprised of a radially slotted plate keyed to and rotatable with opening and closing of said cover, and a valve operating pull pin shiftable in the slotted plate to a radial pull position from a central passive return position with the flush valve closed.
Parent Case Info
This is a continuation-in-part of copending application Ser. No. 07/826,148, filed Jan. 27, 1992.
US Referenced Citations (9)
Foreign Referenced Citations (1)
Number |
Date |
Country |
1134486 |
Apr 1957 |
FRX |
Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
826148 |
Jan 1992 |
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