Patent US4177604A successfully refreshed from Google Patents.
US4177604A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drip-action hydroponic garden
Assignee: Individual
•
Filing: 1977-11-11
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Granted: 1979-12-11
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Expires: 1997-11-11
Abstract
Abstract A hydroponic gardening system and apparatus particularly adapted for small scale use and versatility wherein a steady supply of hydroponic liquid is supplied according to the drip irrigation method to individual plant containers, each of such containers being directly connected through a drain hole and tube in the bottom thereof to a common drain pipe emptying into a liquid reservoir where the liquid is automatically pumped to an elevated tank, the individual plant receptacles being uniquely designed to be very simply removable from the entire system and being rotational in place as well.
Inventors
- 👤 David L. Friesen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:42
CPC Classifications
A; A01; A01G; A01G31/00; A01G31/02; Y; Y02; Y02P; Y02P60/00; Y02P60/20; Y02P60/21
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
126 words
A hydroponic gardening system comprising: (a) a plurality of plant pots, each having a central drain hole in the bottom thereof and being capable of holding root-engaging solids; (b) said pots each having a fluid receiving port and a drain nipple projecting from the bottom thereof; said drain nipple end comprising a stub pipe having an orthogonally related collar on one end thereof, said pipe being inserted through the hole in said pot from the inside such that said collar seals same; (c) a drip line operative to drip hydroponic liquid in said ports; (d) a drain pipe having a plurality of openings to receive said drain nipples from said pots; and (e) means to deliver liquid received by said drain pipe to said drip line.
Claim 2
Dependent Claim
126 words
A hydroponic gardening system comprising: (a) a plurality of plant pots, each having a central drain hole in the bottom thereof and being capable of holding root-engaging solids; (b) said pots each having a fluid receiving port and a drain nipple projecting from the bottom thereof; said drain nipple end comprising a stub pipe having an orthogonally related collar on one end thereof, said pipe being inserted through the hole in said pot from the inside such that said collar seals same; (c) a drip line operative to drip hydroponic liquid in said ports; (d) a drain pipe having a plurality of openings to receive said drain nipples from said pots; and (e) means to deliver liquid received by said drain pipe to said drip line.
Claim 3
Dependent Claim
15 words
Apparatus according to claim 1 and including an adhesive bonding said collar to said vessel.
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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) | 1982-12-10 | 1983-06-11 | 1983-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-12-10 | 1987-06-11 | 1987-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-12-10 | 1991-06-11 | 1991-12-11 | $7700.00 | Window Closed / Lapsed |