Water conserving methods and apparatus for flush toilets
Abstract
Abstract A BARRIER FOR RETAINING FRESH WATER WITHIN A FLUSH TOILET TANK COMPRISES AN END RETAINER WALL, A PAIR OF SIDE RETAINER WALLS ATTACHABLE TO THE END RETAINER WALL, AND A PAIR OF WEDGES INSERTABLE BETWEEN THE END RETAINER WALL AND AN UPSTANDING TANK WALL TO PRESS THE BARRIER INTO SEALING ENGAGEMENT WITH THE TANK INTERIOR. THE WEDGES ENGAGE SLOPING PRESSURE FACES OF THE END RETAINER WALL WHICH DISTRIBUTE THE PRESSING FORCES OF THE WEDGE INTO HORIZONTAL AND VERTICALLY DOWNWARD COMPONENTS. THE SIDE RETAINER WALLS ARE FREELY INTERENGAGEABLE WITH THE END RETAINER WALL, SUCH THAT THE RETAINER WALLS MAY BE ASSEMBLED TOGETHER WITHIN THE TANK. THE TANK-CONTACTING EDGES OF THE RETAINER WALLS ARE DEFINED BY INTEGRAL, BEVELED PERIPHERAL PORTIONS OF THE RETAINER WALLS.
Inventors
- 👤 H Kern
- 👤 M Barnes
Bibliographic Details
Claims Analysis
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-06-27 | 1977-12-27 | 1978-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-27 | 1981-12-27 | 1982-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-27 | 1985-12-27 | 1986-06-28 | $7700.00 | Window Closed / Lapsed |