US4420904A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for feeding potted plants
Assignee: Leifheit AG
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Filing: 1983-03-30
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Granted: 1983-12-20
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Expires: 2003-03-30
Abstract
Abstract A device for feeding potted plants, consisting of a plant pot comprising a slot for the introduction of a wick, the said wick being attached to a tongue forming part of an adapter, a device for varying the level of the plant pot arrangement in a re-potting unit and a level indicator.
Inventors
- 👤 Siegfried Joswig
- 👤 Johannes Liebscher
- 👤 Peter Keils
- 👤 Peter Tiwi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 11:46
CPC Classifications
A; A01; A01G; A01G27/00; A01G27/04
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
131 words
Apparatus for supplying a potted plant with air, and liquids including water and nutrients from a reservoir comprising: a pot for holding the plant and including a base having a slotted opening in its periphery; a holder unit for supporting the pot and having a tongue for insertion into the slotted opening, the tongue having a flat wick positioned thereon for watering and feeding the plant potted in the pot so that the wick may be inserted into the pot after the pot is filled with soil; holder unit including level indicator means for showing the amount of liquid in the reservoir; and an adapter movably attached to the unit for varying the height of the pot with respect to the reservoir so that liquid can be added to the reservoir.
Claim 2
Dependent Claim
131 words
Apparatus for supplying a potted plant with air, and liquids including water and nutrients from a reservoir comprising: a pot for holding the plant and including a base having a slotted opening in its periphery; a holder unit for supporting the pot and having a tongue for insertion into the slotted opening, the tongue having a flat wick positioned thereon for watering and feeding the plant potted in the pot so that the wick may be inserted into the pot after the pot is filled with soil; holder unit including level indicator means for showing the amount of liquid in the reservoir; and an adapter movably attached to the unit for varying the height of the pot with respect to the reservoir so that liquid can be added to the reservoir.
Claim 3
Dependent Claim
21 words
The apparatus as claimed in claim 1 wherein the adapter comprises swivel arms which can be locked into the holder unit.
Claim 4
Dependent Claim
35 words
The apparatus as claimed in claim 1 wherein the level indicator means comprises: a protective trough; a support extending from the trough; and an indicating element positioned in the trough and guided by the support.
Claim 5
Dependent Claim
13 words
The apparatus as claimed in claim 3 wherein the indicating element is ribbon-shaped.
Claim 6
Dependent Claim
26 words
The apparatus as claimed in claim 4 wherein the indicating element is provided with predetermined markings so that the reservoir may be filled to different capacities.
Claim 7
Dependent Claim
38 words
The apparatus as claimed in claim 1 further comprising a plant support in said pot and including a ball of soil directly enclosing at least the root ball of the plant and surrounded by an air-permeable, capillary substrate.
Claim 8
Dependent Claim
19 words
The apparatus as claimed in claim 6 wherein the substrate is bonded together so as to encapsulate the soil.
Claim 9
Dependent Claim
31 words
The apparatus as claimed in claim 1 wherein the wick is provided with a protective film to prevent evaporation in an area between the unit and the water in the reservoir.
Claim 10
Dependent Claim
18 words
The apparatus as claimed in claim 1 wherein the end of the wick is provided with a weight.
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) | 1986-12-19 | 1987-06-20 | 1987-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-12-19 | 1991-06-20 | 1991-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-12-19 | 1995-06-20 | 1995-12-20 | $7700.00 | Window Closed / Lapsed |