Self-watering flower pot
Abstract
Abstract A self-watering flower pot has a unitary, double-walled construction comprising an outer shell, a potting receptacle therewithin, and a water-receiving chamber in the space between the outer shell and the inner receptacle. An upwardly opening recess is defined in the upper surface of the bottom wall of the outer shell, and the potting receptacle has a depending peripheral wall element which extends about a passageway through a lower portion thereof and is disposed with its lower edge within the recess of the bottom wall. In operation a vacuum is created in the space between the double walls, which is relieved when the soil within the potting receptacle becomes sufficiently dry to permit air to permeate and pass outwardly into the chamber. This effectively meters the water by allowing a small amount to flow as dictated by the dryness of the soil. The elements in the lower portion of the flower pot trap the soil and thereby eliminate the need for a porous plug of the type which is normally used for that purpose at such a water/soil interface.
Inventors
- 👤 J Peters
Bibliographic Details
Claims Analysis
Total Claims: 9References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-01-07 | 1977-07-09 | 1978-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-07 | 1981-07-09 | 1982-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-07 | 1985-07-09 | 1986-01-08 | $7700.00 | Window Closed / Lapsed |