US3624692A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nutrient distributor for hydroponic cells
Assignee: IVAN E LUX
•
Filing: 1969-10-29
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Granted: 1971-11-30
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Expires: 1989-10-29
Abstract
Abstract A hydroponic cell, filled with granular material, is provided with a flow path for liquid nutrient extending through one of its walls. The terminal portion of the flow path in the cell is encircled by an apertured member which is movable relatively to the terminal portion of the flow path whereby the flow path is cleared of roots which are either cut off or wiped back into the cell.
Inventors
- 👤 Ivan E Lux
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:31
CPC Classifications
A; A01; A01C; A01C23/00; A01C23/04; A01C23/042; A01G; A01G31/00; A01G31/02; Y; Y02; Y02P; Y02P60/00; Y02P60/20; Y02P60/21; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86493; Y10T137/86718; Y10T137/86743; Y10T137/86751
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
12 words
The combination defined in claim 1 in which said element is reciprocable.
Claim 2
Dependent Claim
33 words
The combination defined in claim 1 in which said element is an open-ended, circular cylindrical sleeve rotatable about its longitudinal axis, and having its upper end projecting above the edge of said cell.
Claim 3
Dependent Claim
14 words
The combination defined in claim 3 in which said guiding surface is circular cylindrical.
Claim 4
Dependent Claim
23 words
The combination defined in claim 1 in which the apertures in the sleeve include notches formed at the lower end of the sleeve.
Claim 5
Dependent Claim
86 words
A self-clearing fitting for use at the terminus of a nutrient flow path serving a hydroponic cell comprising: A. a body including a. a cylindrical upper portion (19) having a polygonal cross section; b. a connector portion (22), c. a projecting, flange intermediate said portions, and d. means including apertures opening through said upper portion providing a flow path through said body; B. a rotatable, right circular cylindrical sleeve, having its lower edge in engagement with said flange, and encircling said upper portion of the body.
References Cited (Backward Citations)
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Cited
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Cited
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Cited
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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) | 1974-11-29 | 1975-05-31 | 1975-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-29 | 1979-05-31 | 1979-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-29 | 1983-05-31 | 1983-11-30 | $7700.00 | Window Closed / Lapsed |