Patent US3880197A successfully refreshed from Google Patents.
Patent US4044407A successfully refreshed from Google Patents.
US4044407A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Toilet water saver device
Assignee: Individual
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Filing: 1976-05-04
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Granted: 1977-08-30
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Expires: 1996-05-04
Abstract
Abstract A water saving device for a toilet tank comprising an open top container with partitions forming an inverted U, siphon duct opening adjacent the bottom of the container and extending over an end wall to discharge below the container bottom. A top wall seals across the tops of the partitions, with a check valve therein to prevent the entrapment of air. A vent tube opens through the top wall from outside the toilet tank and a shut off valve is selectively operated to open or seal off the vent tube.
Inventors
- 👤 George E. Silcox
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 16:11
CPC Classifications
E; E03; E03D; E03D1/00; E03D1/02; E03D1/14; E03D1/142
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
193 words
A toilet tank water saving device comprising: an open top container with generally vertical side and end walls, and a bottom wall adapted to be positioned in a toilet tank above the bottom thereof: an aperture in one end wall adjacent said bottom wall; spaced upright side wall members extending outward from said one end wall, said side wall members extending vertically from the tops of said container to below said bottom wall; an outer partition spanning the ends of said side wall members from the top therof to below said bottom wall and being spaced from the bottom of said tank; a cover spanning the tops of said sidewall members, said one end wall and said outer partition; an intermediate partition spanning said side panels from below said cover to below said bottom wall and spaced between said one end wall and said outer partition to form an inverted U-tube has been inserted after "wall". means sealing between said intermediate partition and said bottom wall; a check valve in the lower portion of said container to enable one-way flow therein; and means selectively operable to vent the inverted U-tube to the atmosphere.
Claim 2
Dependent Claim
193 words
A toilet tank water saving device comprising: an open top container with generally vertical side and end walls, and a bottom wall adapted to be positioned in a toilet tank above the bottom thereof: an aperture in one end wall adjacent said bottom wall; spaced upright side wall members extending outward from said one end wall, said side wall members extending vertically from the tops of said container to below said bottom wall; an outer partition spanning the ends of said side wall members from the top therof to below said bottom wall and being spaced from the bottom of said tank; a cover spanning the tops of said sidewall members, said one end wall and said outer partition; an intermediate partition spanning said side panels from below said cover to below said bottom wall and spaced between said one end wall and said outer partition to form an inverted U-tube has been inserted after "wall". means sealing between said intermediate partition and said bottom wall; a check valve in the lower portion of said container to enable one-way flow therein; and means selectively operable to vent the inverted U-tube to the atmosphere.
Claim 3
Dependent Claim
47 words
The device defined by claim 1 wherein said last-named means comprises: a port in said cover; a vent tube connected at one end thereof to said port and open at the other end to the atmosphere; and valve means selectively operable to close off said vent tube.
Claim 4
Dependent Claim
20 words
The device defined by claim 2 including: means for supporting said valve means on the outside of said toilet tank.
Claim 5
Dependent Claim
19 words
The device defined by claim 2 including: a pneumatic check valve on said cover enabling one-way air flow therefrom.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-08-29 | 1981-02-28 | 1981-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-08-29 | 1985-02-28 | 1985-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-08-29 | 1989-02-28 | 1989-08-30 | $7700.00 | Window Closed / Lapsed |